You are viewing the permanent link for the record currently in effect, published 2026-07-07.
Castle Rock building permits
VerifiedCastle Rock, Colorado — as published 2026-07-07.
Verified 2026-07-05 · Source
Codes adopted
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired for construction of new single-family homes, duplexes, and other one- and two-family dwellings within the Town of Castle Rock. Issued and inspected by the Town's own Development Services Building Division (not Douglas County) under the 2024 IRC as locally amended by Ordinance No. 2026-017, plus the 2021 IECC and 2023 Colorado Model Electric-Ready and Solar-Ready Code.
Verified 2026-07-05 · Source
Requirements
- Plans must comply with the 2024 IRC as locally amended, plus the 2021 IECC and the 2023 Colorado Model Electric-Ready and Solar-Ready Code
- Design must meet Castle Rock's amended Table R301.2(1) criteria: 115 mph Vult wind speed, Seismic Design Category B, 36-inch minimum frost depth, mandatory ice barrier underlayment, and tiered ground snow load (30 psf below 6,000 ft elevation, 35 psf at 6,000-6,499 ft, 40 psf at 6,500-7,000 ft, not reducible)
- Foundation inspections must be performed by a Colorado-licensed professional engineer or registered architect, with a stamped written report submitted to the Building Official
- Building valuation set using the Town's own Building Valuation Table (ICC August 2016 data, Town-specific per-occupancy-group $/sq ft rates), not solely the applicant's stated cost
- All submittals are electronic-only via eTRAKiT, following the Town's Electronic Submittal Guidelines (flattened/optimized PDF, no layers, True Type fonts, bookmarked sheets)
- Contractor registration with the Town is required; homeowners may self-permit only their own owner-occupied primary residence via a notarized/in-person Homeowner Affidavit — not available for rental properties
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
- RequiredConstruction DrawingsFull architectural, structural, mechanical, electrical, and plumbing plan set combined into a single bookmarked PDF, sealed by the design professional
- RequiredSite PlanProperty lines, setbacks, and location of proposed and existing structures
- OptionalHomeowner AffidavitRequired only if the applicant is self-permitting as an owner-occupant of their own primary residence; must be signed in-person at the Building Counter or notarized if submitted electronically
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation $0 to $500 | $23.50 | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 |
| Building Permit Fee — valuation $501 to $2,000 | $23.50 for the first $500 plus $3.05 for each additional $100 or fraction thereof, to and including $2,000 | — |
| Building Permit Fee — valuation $2,001 to $25,000 | $69.25 for the first $2,000 plus $14.00 for each additional $1,000 or fraction thereof, to and including $25,000 | — |
| Building Permit Fee — valuation $25,001 to $50,000 | $391.25 for the first $25,000 plus $10.10 for each additional $1,000 or fraction thereof, to and including $50,000 | — |
| Building Permit Fee — valuation $50,001 to $100,000 | $643.75 for the first $50,000 plus $7.00 for each additional $1,000 or fraction thereof, to and including $100,000 | — |
| Building Permit Fee — valuation $100,001 to $500,000 | $993.75 for the first $100,000 plus $5.60 for each additional $1,000 or fraction thereof, to and including $500,000 | — |
| Building Permit Fee — valuation $500,001 to $1,000,000 | $3,233.75 for the first $500,000 plus $4.75 for each additional $1,000 or fraction thereof, to and including $1,000,000 | — |
| Building Permit Fee — valuation $1,000,001 and up | $5,608.75 for the first $1,000,000 plus $3.65 for each additional $1,000 or fraction thereof | — |
| Plan Review Fee | 65% of the Building Permit Fee (not of valuation); $300 flat for tract homes with an approved Master Plan | Fee Schedule effective July 1, 2026 |
| Administrative Cost Allocation Recovery Fee — New Residential (per building, primary dwelling unit only) | $4,200.00 | — |
| Castle Rock Use Tax | 1/2 valuation x 4.2% | — |
| Douglas County Use Tax | 1/2 valuation x 1% | — |
| Building Valuation — R-3 One- and Two-Family Dwelling, Type VB | $170.80 per sq ft (Type VB); rates vary $170.80-$218.08/sq ft by construction type IA-VB | Town of Castle Rock Building Valuation Table, effective July 1, 2026, based on ICC August 2016 Building Valuation Data |
Residential Addition / Remodel / Basement Finish Permit
VerifiedRequired for additions, basement finishes, and structural alterations to existing one- and two-family dwellings in Castle Rock. Reviewed under the 2024 IRC as locally amended. Basement finishes, decks, patio covers, sunrooms, carports, and detached garages follow a faster review track than full additions per the Town's own published timeline table.
Verified 2026-07-05 · Source
Requirements
- Building permits required for additions, remodels, interior improvements, basement finishes, decks, patios, awnings, pools, and spas
- Permits required for retaining walls over 4 feet high (including the footing/foundation) and for new mechanical equipment
- Plans must comply with the 2024 IRC as locally amended, including Castle Rock's amended structural design criteria (115 mph wind, Seismic Category B, 36-inch frost depth, tiered snow load)
- Deck construction must meet the Town's amended Table R507.7 maximum joist spacing table for decking material/thickness
- Contractor registration required; homeowner self-permit option available only for the applicant's own owner-occupied primary residence
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
- RequiredResidential Addition ChecklistTown-published checklist of required submittal items for residential addition permits
- OptionalBasement Finish Checklist and Building GuideTown-published checklist specific to basement finish permits
- RequiredSite Plan / Construction DrawingsScope, dimensions, and connection of the addition/alteration to the existing structure
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (valuation-based, same tiers as new construction) | $23.50 minimum, scaling to $5,608.75 + $3.65/$1,000 over $1,000,000 | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 |
| Plan Review Fee | 65% of the Building Permit Fee | — |
| Miscellaneous Permits and Fees (default, unless separately scheduled) | $75.00 | — |
Electrical Permit
VerifiedRequired for electrical installation, alteration, or repair work in Castle Rock, governed by the 2026 National Electrical Code (NEC) as locally administered by the Town's Development Services Building Division.
Verified 2026-07-05 · Source
Requirements
- Electrical permit required for new construction wiring, service upgrades, added circuits, and installations tied to solar-ready zones
- Where a solar-ready zone is installed for future electricity generation, electrical rough-in inspection must verify conduit/prewiring from the solar-ready zone to the electrical panel per local amendment R105.2.4.1
- Contractor registration with the Town required; homeowners may self-permit electrical work only on their own owner-occupied primary residence
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Standalone trade permit (valuation-based, same Building Permit Fee tiers) | $23.50 minimum, scaling per the standard valuation table | No separate flat electrical-only fee table was found published; the Town's Fee Schedule applies the general Building Permit Fee valuation tiers to trade work not otherwise flat-fee scheduled. Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 |
| Plan Review Fee | 65% of the Building Permit Fee | — |
Plumbing Permit
VerifiedRequired for plumbing installation, alteration, or repair work in Castle Rock, governed by the 2024 International Plumbing Code (IPC) as adopted and locally administered by the Town.
Verified 2026-07-05 · Source
Requirements
- Plumbing permit required for new/altered water, sewer, and gas piping installations not covered by a flat-fee replacement item
- Water heater replacement/installation is billed as a flat fee rather than valuation
- Contractor registration with the Town required; homeowners may self-permit plumbing work only on their own owner-occupied primary residence
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Water Heater Replacement/Installation | $75.00 | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 (listed jointly with A/C and furnace replacement/installation) |
| Standalone trade permit (valuation-based, for work not on the flat-fee list) | $23.50 minimum, scaling per the standard valuation table | General Building Permit Fee valuation tiers apply absent a specific flat fee |
| Plan Review Fee | 65% of the Building Permit Fee | — |
Mechanical / HVAC Permit
VerifiedRequired for heating, cooling, and gas-fired equipment installation/replacement in Castle Rock, governed by the 2024 International Mechanical Code (IMC) and 2024 International Fuel Gas Code (IFGC).
Verified 2026-07-05 · Source
Requirements
- Permit required for furnace, air conditioner, and other mechanical equipment installation or replacement
- Residential air conditioner, water heater, and furnace replacement/installation are billed at a shared flat fee
- Generators over 5kW require a permit at a flat fee
- Contractor registration with the Town required; homeowners may self-permit mechanical work only on their own owner-occupied primary residence
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Air Conditioner, Water Heater, and Furnace Replacement/Installation | $75.00 each | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 |
| Generator over 5kW | $75.00 | — |
| Plan Review Fee | 65% of the Building Permit Fee (for valuation-based mechanical work not on the flat-fee list) | — |
Roofing Permit (Re-Roof)
VerifiedRequired for residential and commercial re-roofing in Castle Rock, billed based on valuation. Governed by the 2024 IBC/IRC roofing provisions with Castle Rock's own amendments on roof covering class, ice barrier, and a shingle-repair permit exemption.
Verified 2026-07-05 · Source
Requirements
- Roof coverings for re-roofs must be Class A, B, or C per IBC Section 1505 (local amendment to Section 723.1.3)
- Ice barrier underlayment required on eaves and valleys for asphalt shingles, metal roof shingles, mineral-surfaced roll roofing, slate/slate-type shingles, and wood shingles/shakes — at least two layers of cemented underlayment or a self-adhering polymer-modified bitumen sheet extending at least 24 inches inside the exterior wall line; exception for detached accessory structures with no conditioned floor area
- Shingle repair or replacement not exceeding one square (100 sq ft) of covering per building is exempt from a permit
- Commercial and residential re-roof permits are billed based on valuation (not a flat fee) per the Town's fee schedule
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Commercial and Residential Re-Roof Permit | Based on valuation (standard Building Permit Fee tiers) | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 — no flat re-roof fee is published; billed via the same valuation table as new construction |
| Plan Review Fee | 65% of the Building Permit Fee | — |
Demolition Permit
VerifiedRequired for demolition of buildings/structures within Castle Rock. Billed at a flat fee by the Town; asbestos inspection/abatement is governed separately by the Colorado Department of Public Health and Environment (CDPHE), not the Town.
Verified 2026-07-05 · Source
Requirements
- Building/structure demolition requires a Town permit at a flat fee
- Contractor is responsible for ensuring all utilities and fire protection systems are properly disconnected prior to demolition
- A CDPHE-certified asbestos inspection is a separate, statewide (non-Town) requirement for any demolition or renovation in Colorado; contact CDPHE directly for asbestos notification/abatement requirements, which are not administered by the Town's Building Division
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Demolition Permit | $100.00 | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 |
Solar Photovoltaic (PV) Permit
VerifiedCastle Rock's own Development Services Fee Schedule (effective July 1, 2026) has no dedicated solar/photovoltaic fee line -- confirmed directly against the Building Permit Fees page, which itemizes air conditioner/water heater/furnace replacement ($75 each), re-roof permits (based on valuation), demolition ($100), and generators over 5kW ($75), but nothing for solar. A rooftop or ground-mount solar PV installation in Castle Rock is billed across the Town's existing valuation-based Building Permit (racking/structural) and Electrical Permit (interconnection) processes, both issued directly by the Town's Development Services Building Division. The Town's 2023 Colorado Model Electric-Ready and Solar-Ready Code (Municipal Code Chapter 15.15) and local amendment IRC R105.2.4.1 require the electrical rough-in inspection to specifically verify any solar-ready conduit/prewiring to the panel. Any Town-assessed fee is also capped by Colorado's statewide solar permit fee law, C.R.S. § 24-48.5-113 (HB21-1284): $500 residential / $1,000 commercial.
Verified 2026-07-20 · Source
Requirements
- Building Permit required for the racking/structural mounting portion, using the Town's standard valuation-based Building Permit Fee tiers (2024 IRC/IBC as locally amended)
- Electrical Permit required separately for grid interconnection, governed by the 2026 NEC as locally administered by the Town
- Where the property has an existing solar-ready zone, the electrical rough-in inspection must verify conduit/prewiring from that zone to the panel, per local amendment IRC R105.2.4.1 (2023 Colorado Model Electric-Ready and Solar-Ready Code, Municipal Code Chapter 15.15)
- Contractor registration with the Town is required; homeowners may self-permit electrical work only on their own owner-occupied primary residence
- Any fee the Town assesses is capped by Colorado's statewide solar permit fee law, C.R.S. § 24-48.5-113 (HB21-1284): $500 for a residential system, $1,000 for a commercial system
- Submitted electronically via the eTRAKiT Development Portal, same as other Castle Rock trade/building permits
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT) -- BuildingCovers the racking/structural mounting scope
- RequiredPlan Review and Construction Permit Application (eTRAKiT) -- ElectricalCovers the grid-interconnection scope
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (racking/structural, valuation-based) | $23.50 minimum, scaling per the Town's standard valuation table | No standalone flat solar fee line was found in the Town's Development Services Fee Schedule (effective July 1, 2026), confirmed by direct review 2026-07-20 -- solar racking/structural work is billed under the same general valuation-based Building Permit Fee tiers as any other structural scope, subject to Colorado's statewide $500 residential / $1,000 commercial solar fee cap (C.R.S. § 24-48.5-113) |
| Electrical Permit Fee (interconnection, valuation-based) | $23.50 minimum, scaling per the same valuation table | Same standalone-trade-permit fee structure used for other Castle Rock electrical work; also subject to the statewide solar fee cap |
| Plan Review Fee | 65% of the Building Permit Fee | Applies to both the Building and Electrical components, per the Town's Fee Schedule |
Fence and Retaining Wall Permit
VerifiedFences and retaining walls in Castle Rock are exempt from a building permit below specific height thresholds per locally amended IBC/IRC Section 105.2/R105.2; taller structures require a permit.
Verified 2026-07-05 · Source
Requirements
- Fences not over 6 feet high are exempt from a building permit (local amendment to both IBC Section 105.2 subsection 2 and IRC Section R105.2 subsection 1)
- Swimming pool barriers of ANY height are explicitly NOT exempt from permit requirements, regardless of the general fence-height exemption
- Retaining walls over 4 feet high, including the footing/foundation, require a permit (Development Procedures Manual, Chapter X - Permits)
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Required only for fences over 6 feet or retaining walls over 4 feet; submitted electronically via eTRAKiT
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation $0 to $500 (fences/walls requiring a permit) | $23.50 | Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026; no fence/retaining-wall-specific flat fee was found published — the general valuation-based Building Permit Fee table applies |
EV Charger / EVSE Permit
VerifiedCastle Rock has no standalone EV-charger/EVSE permit type or fee line item. Installing electric vehicle charging equipment is electrical work and, per this file's own electrical-permit entry, is billed under the same standalone trade-permit valuation-based fee tiers (Town of Castle Rock Development Services Fee Schedule) used for any electrical permit -- $23.50 minimum, scaling per the standard valuation table, plus a 65% plan-review surcharge, a real and currently-in-force published governing fee mechanism (Fee Schedule effective July 1, 2026). Separately, Castle Rock adopted the 2023 Colorado Model Electric-Ready and Solar-Ready Code as part of Ordinance 2026-017 (amending Title 15, Articles 1 and 2 of the Municipal Code), which requires NEW CONSTRUCTION to include EV-ready circuit/conduit provisioning -- similar in structure to the Town's existing solar-ready-zone local amendment (R105.2.4.1) that this file's electrical-permit entry documents, where rough-in inspection verifies conduit/prewiring to the panel. The Town's own dedicated 'Electric Vehicle Charging' webpage (crgov.com/3358) covers only the Town's PUBLIC charging stations (Encore parking garage, Miller Activity Complex) and does not publish a homeowner/business permitting process, fee, or checklist for installing a private EV charger -- checked directly. Separately, Colorado's HB24-1173 (C.R.S. Sec. 31-23-316) requires municipalities with population 10,000+ (Castle Rock's 2020 Census population is approximately 74,300, 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 Town's Municode library, Development Services ordinance list, and the Colorado Energy Office's EV-charging-permitting compliance page -- no ordinance or resolution distinct from the Electric-Ready and Solar-Ready building-code adoption (Ordinance 2026-017) was found that specifically addresses the HB24-1173 land-use permitting-process requirement; this is reported as a genuine gap in the Town's published materials rather than an inferred compliance status.
Verified 2026-07-20 · Source
Requirements
- EV charger circuit installation (retrofit to an existing structure) is electrical work; apply via the eTRAKiT Development Portal using the standard Plan Review and Construction Permit Application
- Contractor registration with the Town required; homeowners may self-permit electrical work only on their own owner-occupied primary residence, same as general electrical-permit rules
- For NEW CONSTRUCTION, the 2023 Colorado Model Electric-Ready and Solar-Ready Code (adopted via Ordinance 2026-017) requires EV-ready circuit/conduit provisioning to be verified at electrical rough-in, similar to the Town's existing solar-ready-zone amendment
- No distinct EV-charger fee line, checklist, or application exists; billed under the general standalone trade-permit valuation table
Required documents
- RequiredPlan Review and Construction Permit Application (eTRAKiT)Submitted electronically via the eTRAKiT Development Portal for the EV charger circuit
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Standalone trade permit (valuation-based, same Building Permit Fee tiers) | $23.50 minimum, scaling per the standard valuation table | No separate flat EV-charger or electrical-only fee table was found published; the Town's Fee Schedule applies the general Building Permit Fee valuation tiers to trade work not otherwise flat-fee scheduled. Town of Castle Rock Development Services Fee Schedule, effective July 1, 2026 -- same mechanism documented in this file's electrical-permit entry |
| Plan Review Fee | 65% of the Building Permit Fee | — |
Sources & verification
Verified against official sources. Last reviewed 2026-07-05.
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 Castle Rock building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.