This is PermitBase’s published record for Centennial as of 2026-07-20. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Centennial building permits
VerifiedCentennial, Colorado — as published 2026-07-20.
Verified 2026-07-03 · Source
Codes adopted
Colorado has no statewide mandatory building code for general construction; code adoption is a home-rule/local decision that varies by city and county. Applicants must confirm the specific edition and local amendments adopted by their own city — do not assume any other Colorado jurisdiction's adopted codes apply to Centennial. Source: City of Centennial Building Division page (jurisdiction-specific adopted-codes list, current as of this review).Colorado HB22-1362 (Building Greenhouse Gas Emissions, signed June 2, 2022) establishes a statewide ENERGY-CODE FLOOR only (not a full building code): before July 1, 2026, municipalities and counties that update their building codes must adopt and enforce an energy code achieving equivalent-or-better efficiency than the 2021 IECC and the state Energy Code Board's model Electric and Solar Ready Code; on/after July 1, 2026 they must meet the Board's model Low Energy and Carbon Code. Centennial's currently adopted 2021 IECC satisfies this floor as of this review. Source: Colorado General Assembly, HB22-1362, https://leg.colorado.gov/bills/hb22-1362Colorado HB24-1152 (effective June 30, 2025) requires 'subject jurisdictions' (which include Centennial as part of the Denver metro area) to allow at least one Accessory Dwelling Unit per single-family-zoned lot where single-family homes are allowed, removing owner-occupancy mandates, ADU-specific parking minimums beyond what the statute permits, and other historical barriers. Centennial's Land Development Code ADU provisions (Section 12-3-603(H)) implement this. Source: Colorado General Assembly, HB24-1152, http://leg.colorado.gov/bills/hb24-11522021 International Building Code (IBC) — current adopted edition per City of Centennial Building Division2021 International Residential Code (IRC) — current adopted edition per City of Centennial Building Division2021 International Existing Building Code (IEBC) — current adopted edition per City of Centennial Building Division2021 International Energy Conservation Code (IECC) — listed among Centennial's 'Current Building Codes'; note the Building Division's separate FAQ page states the adopted energy code as '2018 IECC' — the Building Division's main Codes page (which lists 2021 IECC) is treated as the more current, authoritative statement for this record, but applicants should confirm the operative edition with the Building Division directly given this discrepancy between the City's own published pages. Source: City of Centennial Building Division page and Building Division FAQ (both centennialco.gov)2021 International Fire Code (IFC) — enforced by South Metro Fire Rescue, not the City Building Division; fire permits/plan review must be applied for separately through South Metro Fire2021 International Fuel Gas Code (IFGC) — current adopted edition per City of Centennial Building Division2021 International Mechanical Code (IMC) — current adopted edition per City of Centennial Building Division2021 International Plumbing Code (IPC) — current adopted edition per City of Centennial Building Division (Colorado, unlike Montana, uses the IPC here, not the UPC)2021 International Swimming Pool and Spa Code (ISPSC) — current adopted edition per City of Centennial Building Division2023 National Electrical Code (NEC) — current adopted edition per City of Centennial Building Division (supersedes the 2020 NEC cited in the City's older 2024 Photovoltaic Installation Guide handout)2025 Colorado Wildfire Resiliency Code (CWRC) — adopted by City of Centennial; part of the statewide Wildland-Urban-Interface code framework administered by the Colorado Division of Fire Prevention and Control, with local adoption required for WUI-designated jurisdictions by April 1, 2026 and full compliance by July 1, 2026. Source: City of Centennial Building Division 'Current Building Codes' list2024 Centennial Property Maintenance Code — locally authored, adopted by City of Centennial (PDF on file with Building Division)2017 ICC A117.1 Accessible and Usable Buildings and Facilities — referenced in the 2021 IBC as adopted by City of CentennialCentennial Municipal Code Chapter 18 (Building Regulations) and the City's Land Development Code govern amendments, permitting procedure, and zoning overlays on top of the adopted I-Codes. Source: https://library.municode.com/co/centennial/codes/municipal_code?nodeId=CEMUCO_CH18BURE
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired for new single-family and two-family residential construction in Centennial ('Residential New' classification). Reviewed against the City's currently adopted 2021 IRC and 2021 IECC, plus Centennial Municipal Code Chapter 18 local amendments (30 psf non-reducible snow load, 115 mph wind speed). Applications are submitted through the Centennial Self-Service Portal.
Verified 2026-07-03 · Source
Requirements
- Building permit required for construction, enlargement, alteration, repair, moving, demolition, or occupancy change of a building or structure, per 2021 IRC R105 as referenced by the City
- Plans must comply with the City's currently adopted 2021 IRC and 2021 IECC (or the adopted energy edition confirmed with the Building Division, given the 2021 vs. 2018 IECC discrepancy noted between the City's Codes page and its FAQ page)
- Design must meet Centennial's local amendments: 30 psf non-reducible roof snow load, 115 mph design wind speed, residential window U-factor of 0.30
- One and Two Family Residential Plans Checklist should be followed for submittal completeness (referenced on the Building Division page; direct checklist URL returned 404 at time of review, see tipsAndGotchas)
- Application submitted online via the Centennial Self-Service Portal (account creation required, ~5 minutes)
- Project valuation (based on labor and materials) and a description of work are required at application
- PDF plans and/or site plans are required for new construction, remodels, and additions (PDF is the only format accepted online)
- Homeowners may self-perform and pull their own permit only if they occupy the residence and submit a signed Homeowners Agreement/Affidavit; otherwise a City-licensed General Contractor (Class A/B/C per project scope) is required
Required documents
- RequiredBuilding Permit ApplicationSubmitted online through the Centennial Self-Service Portal
- RequiredConstruction Drawings / Site PlanPDF plan set showing site plan, foundation, framing, elevations, and structural details consistent with the 2021 IRC and Centennial's local design criteria
- OptionalHomeowners Agreement/Affidavit (PDF, 178KB)Required only if the property owner is self-performing work and pulling their own permit; owner must occupy the residence
- RequiredSub-Contractor List (PDF, 219KB)Lists all licensed subcontractors performing work under the permit
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation $1.00 to $500.00 | $23.50 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $501.00 to $2,000.00 | $23.50 for the first $500.00 plus $3.05 for each additional $100.00, or fraction thereof, to and including $2,000.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $2,001.00 to $25,000.00 | $69.25 for the first $2,000.00 plus $14.00 for each additional $1,000.00, or fraction thereof, to and including $25,000.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $25,001.00 to $50,000.00 | $391.25 for the first $25,000.00 plus $10.10 for each additional $1,000.00, or fraction thereof, to and including $50,000.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $50,001.00 to $100,000.00 | $643.75 for the first $50,000.00 plus $7.00 for each additional $1,000.00, or fraction thereof, to and including $100,000.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $100,001.00 to $500,000.00 | $993.75 for the first $100,000.00 plus $5.60 for each additional $1,000.00, or fraction thereof, to and including $500,000.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $500,001.00 to $1,000,000.00 | $3,233.75 for the first $500,000.00 plus $4.75 for each additional $1,000.00, or fraction thereof, to and including $1,000,000.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Permit Fee — valuation $1,000,001.00 and up | $5,608.75 for the first $1,000,000.00 plus $3.15 for each additional $1,000.00, or fraction thereof | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Plan Review Fee | 65% of the Building Permit Fee, paid at time of submittal | City of Centennial Building Permit Fee Schedule (PDF), page 2 |
| Other Inspections and Fees (outside normal hours, re-inspection, unlisted inspection, additional plan review) | $125.00/hour (after-hours, 2-hour minimum); $55.00/hour (re-inspection, unlisted inspection, or additional plan review, minimum charge one half hour); or total hourly City cost if greater | City of Centennial Building Permit Fee Schedule (PDF) |
| Temporary Certificate of Occupancy (TCO) | $800.00 | City of Centennial Building Permit Fee Schedule (PDF) |
Residential Alteration / Addition / Remodel Permit
VerifiedRequired for additions, remodels, decks, basement finishes, and structural alterations to existing one- and two-family dwellings in Centennial ('Residential Alterations' classification, which includes decks that add to the building footprint). Reviewed against the City's currently adopted 2021 IRC.
Verified 2026-07-03 · Source
Requirements
- Building permit required for removing/reconfiguring existing spaces, extending existing spaces, or renovating existing spaces to include additions, remodels, and decks that add to the building footprint, per the City's Building Permit Classifications page
- Basement finish, additions, and temporary/accessory structures are reviewed under separate review-timeline tracks from general 'Alterations' (see reviewTimelineDays and tips)
- Design must meet Centennial's local amendments: 30 psf non-reducible roof snow load, 115 mph design wind speed
- PDF plans and/or site plans required for additions and remodels
- Homeowners may self-perform and pull their own permit only if they occupy the residence and submit a signed Homeowners Agreement/Affidavit
Required documents
- RequiredBuilding Permit ApplicationSubmitted online through the Centennial Self-Service Portal
- OptionalSingle Family Residential Addition Guide (PDF, 767KB)City of Centennial guide for residential addition submittals
- OptionalSingle Family Basement Finish Guide (PDF, 1MB)City of Centennial guide for basement finish submittals
- OptionalSingle Family Uncovered Decks and Porches Guide (PDF, 577KB)City of Centennial guide for uncovered deck/porch submittals
- OptionalSingle Family Residential Detached Garage Guide (PDF, 602KB)City of Centennial guide for detached garage submittals
- OptionalResidential Patio Covers and Carports Guide (PDF, 544KB)City of Centennial submittal guide for patio covers and carports, based on the 2021 IRC; includes required minimum 8-inch pier diameter, roof pitch, underlayment and fastening details; sides of a carport closer than 3 ft to the property line must be enclosed with a solid 1-hour fire-rated wall per Alternate Details B2/C, and at least two sides must remain open
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial Building Permit Fee Schedule (PDF) |
| Building Plan Review Fee | 65% of the Building Permit Fee | City of Centennial Building Permit Fee Schedule (PDF) |
Electrical Permit
VerifiedRequired for electrical installation, alteration, or repair work in Centennial, governed by the 2023 National Electrical Code (NEC) as currently adopted by the City. Fees are based on living area (square footage) for residential dwellings, or on installation value for all other electrical work.
Verified 2026-07-03 · Source
Requirements
- Electrical permit required for hard-wired electrical installation, alteration, or repair
- Governed by the 2023 NEC as currently adopted by the City of Centennial
- Electrical contractors must be licensed by the Colorado Electrical Board and are required to register with the City on the Electrical Registration Form (no City registration fee)
- One-Stop Permit classification applies to 'Electric Service Change' (replacement of a service or its components without additional load) — no plan review required, processed same-day
Required documents
- RequiredElectrical Permit ApplicationSubmitted online through the Centennial Self-Service Portal
- RequiredElectrical Registration FormCity of Centennial registration required for electrical contractors (no fee); Colorado Electrical Board license required
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Electrical Fee — living area not more than 1,000 sq ft | $100.00 | City of Centennial Building Permit Fee Schedule (PDF), Electrical Fee Table Section A; applies to single-family dwellings, site-built and modular/factory-built homes, duplexes, condominiums, and townhouses |
| Residential Electrical Fee — living area 1,001 to 1,500 sq ft | $150.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Residential Electrical Fee — living area 1,501 to 2,000 sq ft | $200.00 | City of Centennial Building Permit Fee Schedule (PDF) |
| Residential Electrical Fee — per 100 sq ft in excess of 2,000 sq ft | $10.00 per 100 sq ft (rounded up) | City of Centennial Building Permit Fee Schedule (PDF); example given: 2,235 sq ft home = $200 base + $30 (rounded 235 sq ft to 300) = $230.00 total |
| All Other Electrical Fees (non-living-area installations, e.g. garage, shop, PV, service connections, temporary meters, commercial) — value of installation not more than $2,000 | $100.00 | City of Centennial Building Permit Fee Schedule (PDF), Electrical Fee Table Section B; based on total cost to customer of labor, materials, and items |
| All Other Electrical Fees — value of installation $2,001 and above | $5.00 per thousand or fraction thereof, plus $100.00 base | City of Centennial Building Permit Fee Schedule (PDF); example given: $5,150 installation rounds up to $6,000 = 6 x $5 + $100 = $130.00 total |
Plumbing Permit
VerifiedRequired for plumbing installation, alteration, or repair work in Centennial, governed by the 2021 International Plumbing Code (IPC) as currently adopted by the City (Colorado uses the IPC, unlike neighboring states that use the Uniform Plumbing Code).
Verified 2026-07-03 · Source
Requirements
- Plumbing permit required for installation, alteration, or repair of plumbing systems, fixtures, water heaters, gas piping, or sewer/water service lines
- Governed by the 2021 IPC as currently adopted by the City of Centennial
- Fee is valuation-based per the City's general Building Permit Fee Schedule (Centennial does not publish a separate per-fixture plumbing fee table; plumbing work is fee'd on total project valuation like other building permits)
- Residential sewer line replacement and water heater replacement are classified as One-Stop Permits (no plan review, 1 business day)
- A licensed Plumber's Master - Class A (issued by the State of Colorado Plumbing Board, registered with the City) is required for sanitary plumbing and potable water supply piping work
Required documents
- RequiredPlumbing Permit ApplicationSubmitted online through the Centennial Self-Service Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial Building Permit Fee Schedule (PDF); no separate itemized plumbing fixture fee table was found published by the City as of this review — omission noted rather than invented |
| Building Plan Review Fee | 65% of the Building Permit Fee (where plan review is required) | City of Centennial Building Permit Fee Schedule (PDF) |
Mechanical / HVAC Permit
VerifiedRequired for heating, ventilation, air conditioning, and related mechanical installations in Centennial, governed by the 2021 International Mechanical Code (IMC) and International Fuel Gas Code (IFGC) as currently adopted by the City.
Verified 2026-07-03 · Source
Requirements
- Mechanical permit required for installation or replacement of furnaces, AC units, water heaters, gas lines, and related HVAC equipment
- Governed by the 2021 IMC and IFGC as currently adopted by City of Centennial
- Like-for-like replacement of AC/furnace/water heater is classified as a One-Stop Permit (no plan review, 1 business day)
- Fee is valuation-based per the City's general Building Permit Fee Schedule; Centennial does not publish a separate itemized per-appliance mechanical fee table (unlike, e.g., Billings, MT)
- HVAC contractors must hold a City of Centennial HVAC (Heating, Warm Air & Ventilation) contractor license
Required documents
- RequiredMechanical Permit ApplicationSubmitted online through the Centennial Self-Service Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial Building Permit Fee Schedule (PDF); no separate itemized per-appliance mechanical fee table was found published by the City as of this review |
Re-Roofing Permit
VerifiedRequired for residential and commercial re-roofing in Centennial ('Reroof' classification — a One-Stop Permit for residential single-family reroofs). A mandatory mid-roof inspection applies to all reroofing permits, with photo-submission or engineer-letter alternatives available if missed.
Verified 2026-07-03 · Source
Requirements
- Building permit required for roof covering replacement or repair on a residential property (residential reroof, not commercial or multi-family, is a One-Stop Permit)
- Commercial and multi-family reroofs are reviewed in 5 business days after the plan review fee is paid (not One-Stop)
- A mid-roof inspection is REQUIRED for all reroofing permits (residential and commercial) before the roof covering is fully installed
- If a mid-roof inspection is missed, the applicant has three options: (1) submit photos plus the Photo Submission Waiver form, (2) tear off 10% of the shingles and schedule an in-person mid-roof inspection, or (3) provide a stamped engineer's letter in lieu of the inspection
- Roof design must meet Centennial's 30 psf non-reducible snow load and 115 mph wind speed local amendments
- Roofer must hold a City of Centennial Trade Contractor - Roofing license (ICC F-14/W-14, or F-15/W-15 for shingle roofing, or a current Denver/Aurora roofing license)
Required documents
- RequiredBuilding Permit Application (Roofing)Submitted online through the Centennial Self-Service Portal
- OptionalOptions for Missed Mid-Roof Inspection Photo Submission Waiver (PDF, 302KB)Used when a mid-roof inspection was missed; photos are emailed to buildingdivision@centennialco.gov along with this waiver form
- OptionalFoundation Compliance Form (PDF, 211KB)Referenced among Commercial Guides and Checklists on the Building Division page (applicability to roofing not independently confirmed beyond its listing there)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial Building Permit Fee Schedule (PDF) |
Solar Photovoltaic (PV) Permit
VerifiedRequired for installation of rooftop solar photovoltaic systems in Centennial. Governed by the City's Photovoltaic (Solar) Panels and Modules checklist, structural design criteria (115 mph wind / 30 psf snow load), and the currently adopted NEC. Commercial solar installations require a SEPARATE South Metro Fire Rescue submittal and permit in addition to the City Building permit.
Verified 2026-07-03 · Source
Requirements
- A licensed electrical contractor must be provided at time of online application
- Structural engineering letter (stamped and sealed by a licensed structural engineer) required for both commercial and residential installations, demonstrating the existing structure supports lateral and gravity loads with solar panels installed, using minimum 115 mph wind speed (Exposure Category C) and 30 psf roof snow load
- Engineered drawings depicting roof framing member size/spacing, sheathing type/thickness, roofing material layers, and mount type (flush vs. tilt)
- Aerial and vicinity map of the structure
- Site plan showing combiner/junction box, disconnect, inverter, meter, and service panel/tie-in locations; general footprint and proximity to property lines; roof plan showing panel locations relative to b-vents, attic vents, and plumbing vents; 2 ft setback from eaves and 3 ft setback from the ridgeline
- Mounting detail from manufacturer showing uplift capacity for 115 mph wind loads, 30 psf snow loads, and fastener type/size/spacing; custom racking requires a site-specific engineered design
- Manufacturer specification sheets for PV panels and inverter, plus a complete electrical 3-line diagram (system size, module/array specs, string count, conductor sizing, grounding, overcurrent protection, and grid interconnection details)
- Required signage/labels per NEC (rapid shutdown switch, PV system meter, AC/DC disconnect labeling, etc.)
- Must upload a CORE/IREA electric cooperative interconnection application where applicable
- All AC electrical work must be completed by a current Colorado-licensed electrician; all DC electrical work must be completed by a current NABCEP-certified contractor (unless the installer already holds a Colorado electrical license)
- SEPARATE fire department submittal and permit required for commercial solar installations (South Metro Fire Rescue, not the City Building Division)
Required documents
- RequiredPhotovoltaic (Solar) Installation Guide submittal packageStructural engineering letter, engineered drawings, aerial/vicinity map, site plan, mounting details, manufacturer spec sheets, and electrical 3-line diagram per the City's Photovoltaic (Solar) Panels and Modules checklist
- RequiredBuilding/Electrical Permit ApplicationSubmitted online through the Centennial Self-Service Portal
- OptionalCORE/IREA Interconnection ApplicationRequired upload for CORE Electric Cooperative / IREA service-territory projects; approved application is a Final Inspection prerequisite for those projects
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (project cost used as valuation) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial Building Permit Fee Schedule (PDF); no dedicated solar fee waiver found on the City's published fee schedule |
| All Other Electrical Fees (PV falls under non-living-area electrical work) — value of installation not more than $2,000 / $2,001 and above | $100.00 minimum, or $5.00 per thousand (or fraction) plus $100.00 for installations over $2,000 | City of Centennial Building Permit Fee Schedule (PDF), Electrical Fee Table Section B, which explicitly lists 'photovoltaic' as an example of a non-living-area installation |
Demolition Permit
VerifiedRequired for demolition of any plumbing, mechanical, electrical, or structural elements within a residential or commercial property in Centennial ('Residential Demolition' / 'Commercial Demolition' classifications). Demolition contractors must hold a City of Centennial Demolition contractor license.
Verified 2026-07-03 · Source
Requirements
- Building permit required for removal of any plumbing, mechanical, electrical, or structural elements within a residential or commercial property, per the City's Building Permit Classifications page
- Demolition contractor must hold a City of Centennial Demolition license, which 'entitles the Licensee to contract and engage in the demolition and wrecking of existing structures'
- General Contractor Class A, B, or C licenses also independently entitle the licensee to contract for demolition and wrecking of buildings within their respective construction-type/occupancy scope
- A specific standalone demolition-permit checklist/application document was not located as a distinct published PDF on the City's site as of this review beyond the general Building Permit Application and Commercial/Residential Plans Checklists; applicants should confirm exact submittal requirements directly with the Building Division (303-754-3321) — recovery avenues exhausted: browser-header curl, no-header curl, targeted URL guesses against the City's building-guide PDF path (e.g. demolition-permit-guide-final-ada.pdf, demolition-checklist-ada.pdf — all returned 404), and a full inventory of every guide/checklist PDF linked from the City's Building Division main page (basement finish, patio cover/carport, residential addition, detached garage, uncovered deck/porch, and photovoltaic guides are published; no demolition guide is among them) confirm no demolition-specific guide exists distinct from the general permit application
- Residential Demolition is explicitly and by name one of the categories listed in the City's Building Permit Review Schedule 5-business-day track ('Alterations, basement finish, deck/pergola/patio cover, demolition, miscellaneous, renewable energy and windows/doors (with structural changes)'), and Commercial Demolition is explicitly named in the Commercial Permits 5-business-day track ('Reroof, stand-alone demolition permits and renewable energy'); both are named rows, not a generic catch-all, so the review timeline is directly governing rather than borrowed. Source: City of Centennial Building Permit Review Schedule page (verified via no-header curl, HTTP 200, 2026-07-03)
Required documents
- RequiredBuilding Permit Application (Demolition)Submitted online through the Centennial Self-Service Portal, classified as Residential or Commercial Demolition
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial Building Permit Fee Schedule (PDF); no separate flat demolition fee or bond requirement was found published by the City as of this review, distinct from some other Mountain West jurisdictions that charge a separate demolition site bond |
| Demolition Contractor License (annual) | $80.00 | City of Centennial Contractor License Requirements and Fee Schedule (PDF) — a contractor-licensing fee, not a per-project permit fee |
Fence Permit
VerifiedRequired for all new fences and for replacement fences where height, location, or materials are changing (e.g., chain link to wood) in Centennial. Governed by Centennial Land Development Code Section 12-3-602 (Fences, Garden Walls, and Hedges).
Verified 2026-07-03 · Source
Requirements
- Fence permit required for all new fences and replacements where height, location, or materials change
- Maximum height and minimum setback vary by yard location: Front Yard max 4 ft (setback 0 ft, but at least 6 in. from sidewalk if present, or 5 ft from streets if no sidewalk); Interior Side Yard max 8 ft (0 ft setback); Street Side Yard max 8 ft (same sidewalk/street setback rule as front yard); Rear Yard max 8 ft (same sidewalk/street setback rule as front yard)
- Fence and garden wall setback/placement must also follow Section 12-11-208 (Sight Triangle and Sight Distance Requirements)
- Permitted materials: wood (weather-resistant species, split rail, EPA-approved-preservative-treated, or painted/stained and sealed), ornamental wrought iron or powder-coated aluminum, vinyl, composite materials, or masonry (brick, finished concrete, split-face CMU, or stone)
- Chain link fences permitted only in interior side yards and rear yards that are not also street yards
- Prohibited fence/wall materials: scrap lumber, plywood, tree branches/trunks, sheet metal, plastic or fiberglass sheets, barbed wire (except limited utility-building cradles), spikes, nails or other sharp points, and fabric/mesh as a primary component
- Welded wire, agricultural fencing, and chicken wire are restricted to the AG zoning district (and limited NC-district legacy lots / inside split-rail fences)
- The finished side of the fence must face out toward any trail, open space, park, or adjacent right-of-way
- All contractors performing fence work on behalf of an owner must be licensed within the City of Centennial
Required documents
- RequiredFence Permit ApplicationSubmitted online through the Centennial Self-Service Portal
- RequiredSite Plan or SurveyDiagram showing the location of the fence in relation to the property line
- RequiredFence Diagram DrawingPhoto or drawing of the finished fence appearance
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Fence Permit Fee — valuation-based | Minimum review fee of $20.00, scaling with project valuation | City of Centennial 'Apply for a Fence Permit' page; due prior to permit issuance |
Accessory Dwelling Unit (ADU) Permit
VerifiedRequired to establish an Attached, Detached, or Interior Accessory Dwelling Unit on a residentially-zoned lot in Centennial. Implements Colorado HB24-1152 (state ADU mandate) via Centennial Land Development Code Section 12-3-603(H). ADUs are optional for property owners (not mandatory) but the City must allow them where the LDC permits.
Verified 2026-07-03 · Source
Requirements
- Allowed in zoning districts: AG, RS, RA, RU, NC, NI, and (limited to single-family lots with single-family homes) CG, AC, and UC
- Only one ADU allowed per single-family detached dwelling; lots with an ADU cannot be subdivided so the ADU sits on a separate platted lot, and the ADU cannot be sold independently of the principal dwelling
- Must be a permanent, habitable structure — mobile homes, recreational vehicles, and travel trailers are prohibited
- Must receive a will-serve letter from all applicable utility districts and connect to utilities per that provider's requirements (tap fees, metering, and construction-permit requirements vary by individual water district)
- Minimum setbacks and maximum building coverage match those of the principal structure for the zone district (LDC Section 12-3-301 for setbacks, Section 12-3-205/Table 12-3-301 for building coverage)
- Maximum height: same as principal dwelling for attached ADUs; 17 feet for detached ADUs (LDC Section 12-3-204 for height measurement)
- Size limit: <=50% of the principal dwelling's building footprint, OR the full existing footprint of an attic/basement conversion with no additional construction expanding that space
- ADU must have its own separate entrance (exterior door or via a shared foyer/mud room)
- Detached ADUs and attached-addition ADUs must match the main house in at least 3 of: roof pitch/form, soffit/fascia style, exterior wall cladding, window style/trim/orientation, exterior door style, architectural features (recessions, dormers, balconies, porches, columns, entry features), or color palette
- One additional off-street parking space required beyond what the principal dwelling requires (may use driveway space if available)
- Short-term rentals are NOT allowed within ADUs
- If the property owner does not live on the property, the ADU must be registered with the City via ADU Rental Registration
- A pre-submittal meeting (per LDC Section 12-14-303) is required before submitting the building permit application
- A separate address assignment is required for every ADU (applied for through the Centennial Customer Service Portal)
- Compliance with Centennial Municipal Code Chapter 18 (Building Regulations) is required, same as any building permit
- HOAs and civic associations may impose additional or more restrictive rules on ADUs, and it is the property owner's responsibility to comply with those private covenants separately from City requirements
Required documents
- RequiredPre-Submittal Plan ApplicationRequired pre-submittal meeting application via the Centennial Customer Service Portal, prior to the building permit application, per LDC Section 12-14-303
- RequiredAddress Assignment Plan ApplicationRequired to obtain a separate address for the ADU, via the Centennial Customer Service Portal; requires the main home's address and applicant contact info
- OptionalAttached ADU Addition Guide (PDF, 2MB)City of Centennial submittal guide for attached ADU additions
- OptionalDetached ADU Guide (PDF, 1MB)City of Centennial submittal guide for detached ADUs
- OptionalInterior ADU Guide (PDF, 5MB)City of Centennial submittal guide for interior (basement/attic) ADUs
- RequiredWill-Serve LetterRequired from all applicable utility districts serving the property as part of the building permit application
- OptionalADU Rental RegistrationRequired only if the property owner does not live on the property; steps and required documents detailed in the City's ADU Rental Registration handout
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum ($1-$500 valuation), scaling per the Building Permit Fee Schedule table | City of Centennial ADU page explicitly states ADU building permit fees are based on total project valuation, referencing the same Building Permit Fee Schedule (PDF, 269KB) used for all other building permits; Show full citationHideCity of Centennial ADU page explicitly states ADU building permit fees are based on total project valuation, referencing the same Building Permit Fee Schedule (PDF, 269KB) used for all other building permits; no separate ADU-specific fee schedule or waiver was found published by the City as of this review |
EV Charger / EVSE Permit
VerifiedCentennial has no standalone EV-charger/EVSE permit type or fee line item. Installing electric vehicle charging equipment is electrical work, governed by the 2023 National Electrical Code (NEC) as currently adopted by the City, and per this file's own electrical-permit entry, is billed under the City's 'All Other Electrical Fees' table (Electrical Fee Table Section B), the same value-based category used for garage/shop circuits, PV service connections, and temporary meters -- not the living-area-based residential table. This is a real, currently-published, exact governing fee: $100.00 flat for an installation valued at $2,000 or less, confirmed directly against the City's own Building Permit Fee Schedule PDF on 2026-07-20. The City's Building Permit Fee Schedule does not itemize an EV-charger-specific line, and no evidence was found that Centennial's 'One-Stop Permit' fast-track (currently limited to 'Electric Service Change' -- replacement of a service or its components without additional load) explicitly extends to new EV charger circuits, which typically add load rather than simply replacing existing service. Separately, Colorado's HB24-1173 (C.R.S. Sec. 31-23-316) requires municipalities with population 10,000+ (Centennial's 2020 Census population is approximately 108,300, well over the threshold) to adopt a standardized EV-charging LAND-USE permitting process, adopt the state's model land use code, or formally opt out, by December 31, 2025. Checked directly on 2026-07-20 against the City's Municode library, City Council legislative history, and the Colorado Energy Office's compliance page -- no ordinance or resolution addressing this land-use permitting-process requirement was found published by the City as of this review; this is reported as a genuine gap rather than an inferred compliance status.
Verified 2026-07-20 · Source
Requirements
- EV charger circuit installation is electrical work; apply online through the Centennial Self-Service Portal using the standard Electrical Permit Application
- Governed by the 2023 NEC as currently adopted by the City of Centennial
- Electrical contractors must be licensed by the Colorado Electrical Board and register with the City on the Electrical Registration Form (no City registration fee)
- Billed under the 'All Other Electrical Fees' (non-living-area installations) value-based table, since an EV charger circuit is not a living-area square-footage item
- If the installation is limited to a pure service change with no added load, it may qualify for the City's One-Stop Permit fast track -- not independently confirmed as applying to EV chargers specifically
Required documents
- RequiredElectrical Permit ApplicationSubmitted online through the Centennial Self-Service Portal for the EV charger circuit
- RequiredElectrical Registration FormCity of Centennial registration required for the installing electrical contractor (no fee); Colorado Electrical Board license required
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| All Other Electrical Fees (EV charger circuit) — value of installation not more than $2,000 | $100.00 | City of Centennial Building Permit Fee Schedule (PDF), Electrical Fee Table Section B; Show full citationHideCity of Centennial Building Permit Fee Schedule (PDF), Electrical Fee Table Section B; based on total cost to customer of labor, materials, and items. No distinct EV-charger line item exists -- billed under this general non-living-area electrical category, same as garage/shop circuits, PV service connections, and temporary meters |
| All Other Electrical Fees — value of installation $2,001 and above | $5.00 per thousand or fraction thereof, plus $100.00 base | City of Centennial Building Permit Fee Schedule (PDF); would apply to a higher-cost EV charger installation involving panel/service upgrades |
Sources & verification
Verified against official sources. Last reviewed 2026-07-03.
Fee schedules
Checklists & handouts
Codes & ordinances
Department & other records
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Centennial building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.