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Residential Building Permit (New Single-Family, Townhouse, Two-Family Dwelling) — Littleton, Colorado · Requirements sheet
Verified 2026-07-05 · Source: https://www.littletonco.gov/Building-Development/Permits-Review-Guides-and-Requirements/Residential-Submittal-Requirements
PermitBase is an independent reference and is not affiliated with any government agency. Requirements change and vary by project — confirm current details with the building department before you submit.
Residential Building Permit (New Single-Family, Townhouse, Two-Family Dwelling) in Littleton, Colorado
Required for new single-family homes, townhouses, and two-family dwellings within Littleton. Reviewed under the 2024 IRC/IBC as locally amended, plus Littleton's adopted structural design criteria (ground snow load, wind speed) under City Code Title 4, Chapter 1. Issued and inspected by the City of Littleton Building and Code Compliance Division.
Verified 2026-07-05 · Source
When you need this permit
- Plans must comply with the 2024 IRC/IBC as adopted by the City of Littleton
- Must meet Littleton's adopted Climatic and Geographic Design Criteria (City Code Title 4, Ch. 1 amending IRC Table R301.2): Ground Snow Load 40 psf (non-reducible), Ultimate Design Wind Speed 136 mph
- Structural plans must be stamped and signed by a Licensed Colorado Structural Engineer; architectural plans must be stamped and signed by a Colorado Design Professional
- Site plan required showing dimensions to property lines, all easements, and existing/proposed structures with a landscaping plan
- Energy Conservation Code compliance required via one of: Prescriptive R-Value/U-Factor, Prescriptive Component Performance Alternative, Simulated Building Performance, or Energy Rating Index
- All contractors working on the project must hold a current City of Littleton Contractor's License and be identified on the permit Contractor
- All documents must be submitted electronically via the eTRAKiT portal; 'preliminary' or 'not for construction' plan sets are not accepted
- Permit must be commenced within 180 days and expires 365 days after issuance unless extended by the Building Official
Required documents
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Fee schedule
Building Permit Fee — valuation $1 to $500.00Per Resolution 2025-105 (approved by City Council Dec. 21, 2025), the City's current published fee schedule
$25.85
Building Permit Fee — valuation $500.01 to $2,000.00
$25.85 for the first $500 plus $3.35 for each additional $100 or fraction thereof, to and including $2,000.00
Building Permit Fee — valuation $2,000.01 to $25,000.00
$76.17 for the first $2,000 plus $15.40 for each additional $1,000 or fraction thereof, to and including $25,000.00
Building Permit Fee — valuation $25,000.01 to $50,000.00
$430.37 for the first $25,000 plus $11.11 for each additional $1,000 or fraction thereof, to and including $50,000.00
Building Permit Fee — valuation $50,000.01 to $100,000.00
$708.12 for the first $50,000 plus $7.70 for each additional $1,000 or fraction thereof, to and including $100,000.00
Building Permit Fee — valuation $100,000.01 to $500,000.00
$1,093.12 for the first $100,000 plus $6.16 for each additional $1,000 or fraction thereof, to and including $500,000
Building Permit Fee — valuation $500,000.01 to $1,000,000.00
$3,557.12 for the first $500,000 plus $5.23 for each additional $1,000 or fraction thereof, to and including $1,000,000
Building Permit Fee — valuation greater than $1,000,000.00
$6,172.12 for the first $1,000,000 plus $4.02 for each additional $1,000 or fraction thereof
Plan Review FeeOnly applicable when blueprints/construction documents are reviewed for municipal and adopted building codes
65% of the Permit Fee
City of Littleton Use Tax DepositCity Code Title 3-9-3-5 sets the sales/use tax rate at 3.75%
0.01969 x Total Job Valuation, i.e. (Total Job Valuation x 52.5%) x 3.75%
Arapahoe County Open Space Tax
0.00125 x Total Valuation, i.e. (Total Job Valuation x 50%) x 0.25%
Master Plan subsequent-permit fee (single-family detached residential projects)
$350
Review timeline
Plan review
Not published — contact the department
Inspection process
- 1
Foundation
Before concrete pour; structural engineer of record (or representative) must inspect and verify any foundation alteration prior to Building Division final approval
- 2
Rough Plumbing / Rough Electrical / Rough Heating
Rough-in of plumbing (waste/vent/water/gas piping, tested), electrical (panel and wiring), and heating (ductwork) before concealment; all three must be inspected and approved before a rough framing inspection can be requested
- 3
Rough Framing
Framing, sub-flooring, stairs; requires prior approval of rough plumbing, rough electrical, and rough heating inspections
- 4
Final Inspection
All work complete per approved plans and applicable codes; owner or contractor must request in advance and ensure site access (no rear/fenced-yard entry without permission, no unoccupied-residence entry)
See the full Littleton inspection guide — scheduling & re-inspection fees →
Tips
- Littleton's adopted design snow load (40 psf) is notably LOWER than several neighboring Front Range jurisdictions (e.g., Golden's 69-83 psf) but its wind speed (136 mph Ultimate Design Wind Speed) still requires code-listed roofing materials rated to specific ASTM/UL standards — don't assume a generic regional design assumption applies.
- Structural and architectural plan sets MUST be stamped by a Colorado-licensed Structural Engineer / Design Professional respectively for new single-family, townhouse, two-family, addition, and ADU submittals — electrical, mechanical, and plumbing plans are not required to be stamped.
- Budget for THREE tax/fee layers beyond the base permit fee: the 65% Plan Review Fee, the City Use Tax Deposit (3.75% City sales/use tax rate applied to 52.5% of valuation), and the Arapahoe County Open Space Tax (0.25% applied to 50% of valuation).
- A permit must be commenced within 180 days and expires 365 days after issuance regardless of activity — track your schedule against these hard deadlines.
Frequently asked questions
Littleton requires a residential building permit (new single-family, townhouse, two-family dwelling) for: Plans must comply with the 2024 IRC/IBC as adopted by the City of Littleton; Must meet Littleton's adopted Climatic and Geographic Design Criteria (City Code Title 4, Ch. 1 amending IRC Table R301.2): Ground Snow Load 40 psf (non-reducible), Ultimate Design Wind Speed 136 mph; Structural plans must be stamped and signed by a Licensed Colorado Structural Engineer; architectural plans must be stamped and signed by a Colorado Design Professional; Site plan required showing dimensions to property lines, all easements, and existing/proposed structures with a landscaping plan; Energy Conservation Code compliance required via one of: Prescriptive R-Value/U-Factor, Prescriptive Component Performance Alternative, Simulated Building Performance, or Energy Rating Index; All contractors working on the project must hold a current City of Littleton Contractor's License and be identified on the permit; All documents must be submitted electronically via the eTRAKiT portal; 'preliminary' or 'not for construction' plan sets are not accepted; Permit must be commenced within 180 days and expires 365 days after issuance unless extended by the Building Official. If your project isn't listed, confirm with City of Littleton Building and Code Compliance Division (Community Development Department, Permit Center) at 303-795-3751 before starting work.
In Littleton, the published Building Permit Fee — valuation $1 to $500.00 is: $25.85. Additional published fees: Building Permit Fee — valuation $500.01 to $2,000.00 — $25.85 for the first $500 plus $3.35 for each additional $100 or fraction thereof, to and including $2,000.00; Building Permit Fee — valuation $2,000.01 to $25,000.00 — $76.17 for the first $2,000 plus $15.40 for each additional $1,000 or fraction thereof, to and including $25,000.00; Building Permit Fee — valuation $25,000.01 to $50,000.00 — $430.37 for the first $25,000 plus $11.11 for each additional $1,000 or fraction thereof, to and including $50,000.00; Building Permit Fee — valuation $50,000.01 to $100,000.00 — $708.12 for the first $50,000 plus $7.70 for each additional $1,000 or fraction thereof, to and including $100,000.00; Building Permit Fee — valuation $100,000.01 to $500,000.00 — $1,093.12 for the first $100,000 plus $6.16 for each additional $1,000 or fraction thereof, to and including $500,000; Building Permit Fee — valuation $500,000.01 to $1,000,000.00 — $3,557.12 for the first $500,000 plus $5.23 for each additional $1,000 or fraction thereof, to and including $1,000,000; Building Permit Fee — valuation greater than $1,000,000.00 — $6,172.12 for the first $1,000,000 plus $4.02 for each additional $1,000 or fraction thereof; Plan Review Fee — 65% of the Permit Fee; City of Littleton Use Tax Deposit — 0.01969 x Total Job Valuation, i.e. (Total Job Valuation x 52.5%) x 3.75%; Arapahoe County Open Space Tax — 0.00125 x Total Valuation, i.e. (Total Job Valuation x 50%) x 0.25%; Master Plan subsequent-permit fee (single-family detached residential projects) — $350. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.
The City does not publish a specific numeric plan-review or issuance timeline for new residential construction. Colorado has no statewide review-timeline statute (home-rule), so no governing figure exists beyond contacting the Permit Center directly for current caseload estimates.
You'll need: Building Permit Application (eTRAKiT Online System); Structural Plans (stamped); Architectural Plans (stamped); Site Plan; Electrical, Mechanical, and Plumbing Plans. See the required-documents checklist on this page for details on each.
Littleton requires 4 inspection(s) for a residential building permit (new single-family, townhouse, two-family dwelling), in order: Foundation, Rough Plumbing / Rough Electrical / Rough Heating, Rough Framing, Final Inspection. Schedule each through City of Littleton Building and Code Compliance Division (Community Development Department, Permit Center) (303-795-3751).
Apply through City of Littleton Building and Code Compliance Division (Community Development Department, Permit Center) at Littleton Center, 2255 W. Berry Avenue, Littleton, CO 80120. Phone: 303-795-3751, email: permits@littletonco.gov. Office hours: Permit Center: Monday-Thursday 8:00 a.m.-4:30 p.m., Fridays closed; in-person walk-in hours limited to Monday 1:00-4:30 p.m. (no walk-ins after 4:15 p.m.) and Thursday 8:00-11:30 a.m.; Building Inspections staff hours 7:30 a.m.-4:30 p.m. Monday-Friday. FAX 720-741-0210, eFax 720-384-0601.. Official information: https://www.littletonco.gov/Building-Development.
Littleton, Colorado has adopted: 2024 International Building Code (IBC) — City of Littleton Building Codes and Amendments page; 2024 International Residential Code (IRC); 2024 International Energy Conservation Code (IECC); 2024 International Existing Building Code (IEBC); 2024 International Fuel Gas Code (IFGC); 2024 International Mechanical Code (IMC); 2024 International Plumbing Code (IPC) — Littleton uses the International Plumbing Code, not the Uniform Plumbing Code; 2024 International Property Maintenance Code (IPMC); 2024 International Swimming Pool and Spa Code (ISPSC); 2024 International Wildland-Urban Interface Code (IWUIC); 2024 International Fire Code (IFC); ICC A117.1-2017 Standard with Supplement 1 — Accessible and Usable Buildings and Facilities; NFPA 70 National Electrical Code, 2026 Edition ("2026 NEC"); 1997 Uniform Code for the Abatement of Dangerous Buildings (International Conference of Building Officials); Colorado Model Electric Ready and Solar Ready Code, adopted by the Colorado Department of Local Affairs and Colorado Energy Office effective June 1, 2023; Littleton City Code Title 4, Chapter 1 — local IRC amendments including adopted Climatic and Geographic Design Criteria (Table R301.2): Ground Snow Load 40 psf (non-reducible), Ultimate Design Wind Speed 136 mph; Littleton City Code Title 3, Chapter 16 — Contractor Licensing (license/registration required to obtain permits within city limits, effective July 1, 1985). Local amendments apply — see the Littleton overview page for the full list.
The City of Littleton's own Community Development Department (Building and Code Compliance Division, via its Permit Center) issues all building, electrical, mechanical, and plumbing permits citywide — Littleton is a home-rule city with an in-house building department, not a contracted third-party program.
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 Littleton building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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