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This is PermitBase’s published record for Nunn as of 2026-07-06. It has since been superseded — see the current record.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.

Nunn building permits

Nunn, Colorado — as published 2026-07-06.

Reviewed 2026-07-06 · Source

Codes adopted

2018 International Building Code (IBC), chapters 1-33 and appendix chapter 1, adopted by reference — Nunn Municipal Code (NMC) 15.04.020, as amended (Ord. No. 237 12-18-2003; Ord. No. 263 5-3-2007; Ord. No. 317 6-20-2019)2018 International Residential Code (IRC), chapters 1-43 and appendix chapters H and M, adopted by reference — NMC 15.04.120, as amended (Ord. No. 237, 263, 317)2018 International Mechanical Code (IMC), chapters 1-15, adopted by reference — NMC 15.04.030 (Ord. No. 237, 263, 317)2018 International Plumbing Code (IPC), chapters 1-13, adopted by reference — NMC 15.04.050 (Ord. No. 237, 12-18-2003)2018 International Fuel Gas Code (IFGC), chapters 1-8, adopted by reference — NMC 15.04.090 (Ord. No. 237, 263, 317)2018 International Existing Building Code (IEBC), chapters 1-16, adopted by reference — NMC 15.04.130 (Ord. No. 263 5-3-2007; Ord. No. 317 6-20-2019)2018 International Property Maintenance Code (IPMC), chapters 1-8, adopted by reference — NMC 15.04.150 (Ord. No. 317 6-20-2019)2018 International Swimming Pool and Spa Code (ISPSC), chapters 1-11, adopted by reference — NMC 15.04.160 (Ord. No. 317 6-20-2019)2012 International Energy Conservation Code (IECC), chapters 1-5, adopted by reference as the town energy conservation code — NMC 15.04.140 (Ord. No. 317 6-20-2019); IBC section 1301.1.1/101.4.6 and IRC chapter 11 are both explicitly amended to substitute the 2012 IECC as wellNational Electrical Code, 2002 edition, adopted by reference — NMC 15.04.040 (codified text, unamended since original Code 2002 codification). NOTE: this is the currently codified NEC edition in the 2024 Nunn Municipal Code as republished by Ordinance No. 326 (adopted 6-20-2024, adopting/enacting the Municipal Code by reference). However, SAFEbuilt's own current 'Photovoltaic System Submittal Requirements' handout (the Town's contracted plan-review/inspection agency) states 'Applicable current codes are the 2020 NEC, 2018 International Codes' — a direct discrepancy between the codified 2002 NEC text and SAFEbuilt's operational reference. Flagged honestly rather than resolved by assumption; the governing citation is the codified 2002 NEC per NMC 15.04.040 pending confirmation from the Town.Chapter 15.16 (Energy Efficiency Construction) of the Nunn Municipal Code additionally references the 1977/1978 Colorado Model Energy Efficiency Construction and Renovation Standards for Nonresidential Buildings and the companion Colorado Recommended Energy Conservation 'Performance' Code for Residential Buildings — these appear to be vestigial/superseded provisions retained from the original 2002 code codification and predate the town's adoption of the 2012 IECC at NMC 15.04.140 (2019); not applied as the governing energy standard in this file.

Permit types & fees

Residential Building Permit (New Construction)

Required for new single-family or duplex construction in the Town of Nunn. Reviewed under the 2018 IRC as locally amended, including Nunn's Climatic and Geographic Design Criteria (30 psf ground snow load, 115 mph wind design speed, 30-inch frost depth) and a Colorado-registered-design-professional foundation/soils requirement. Applications are submitted to the Town Clerk's Office and forwarded to SAFEbuilt (the Town's contracted plan-review/inspection agency) for plan review; projects require Planning Board approval before SAFEbuilt review begins.

Reviewed 2026-07-06 · Source

Requirements

  • Planning Board approval required before the application is forwarded to SAFEbuilt for plan review; paperwork must be submitted to Town Hall at least 6 days before the Planning Board's first-Thursday-of-the-month, 6:00 p.m. meeting, and the applicant must personally attend
  • Plans must comply with the 2018 IRC as locally amended and meet Nunn's Climatic and Geographic Design Criteria: 30 psf ground snow load, 115 mph wind design speed (Exposure C, Seismic Design Category B), 30-inch minimum frost depth, ice barrier underlayment required
  • Foundation design and construction drawings must be stamped by a Colorado-registered design professional, based on an engineer's soils report (firm name, design location, and soils-report number noted); a site certification by a Colorado-registered design professional is required for setback verification
  • One set of plans (site plan, floor plan showing square footage by level/garage/deck/porch/crawl space, and structural/electrical/mechanical/plumbing plans as applicable) submitted to the Town Clerk's Office or emailed to kendra.minch@townofnunnco.gov
  • Once returned from SAFEbuilt, the Town emails an invoice with assessed fees; payment (in person or by phone) and authorization must be complete before work may begin
  • All inspections are performed by SAFEbuilt, not the Town; the owner/contractor is responsible for scheduling inspections directly with SAFEbuilt

Required documents

  • RequiredBuilding Permit ApplicationTown of Nunn Building Permit Application form, submitted to the Town Clerk's Office or by email
  • RequiredSite Plan / Plans SetOne set of plans: new-construction drawing plus a drawing of existing buildings/rooms, showing easements and setbacks; square footage by area (addition, basement, 1st/2nd story, garage, carport, deck, porch, crawl space); detailed description of proposed use
  • RequiredEngineer's Soils Report and Stamped Foundation DrawingsPrepared by a Colorado-registered design professional per IRC R401.2/R405.1 as locally amended
  • RequiredPlanning Board ApprovalRequired before SAFEbuilt plan review begins, for any structure over 120 sq ft

Fee schedule

Fee typeAmountNotes
Building Permit Fee and Plan Review FeeNot independently verifiable — no published fee schedule existsPer NMC 15.04.010(6)-(7)/15.04.100/15.08.060, fees are set and amended by Town Board of Trustees Resolution, not stated in the codified ordinance text. The Town's own process description states SAFEbuilt calculates and returns assessed fees per application, which the Town then invoices to the applicant. No standalone fee-schedule resolution PDF or webpage was locatable after checking the Building/Planning page, Municipal Code/Ordinances page, and a direct search. Contact the Town Clerk's Office (970-897-2385 / kendra.minch@townofnunnco.gov) for a current quote.
Investigation Fee (work commenced before permit issuance)Up to the amount of the permit fee that would normally applyIRC R108.6 as locally amended; charged in addition to all other required fees, collected whether or not a permit is subsequently issued
Permit Renewal After 180-Day ExpirationOne-half the original permit fee (if within 1 year of suspension/abandonment, no plan changes); full new fee if lapsed longerIRC R105.5 as locally amended

Residential Addition / Remodel Permit

Required for additions, basement finishes, kitchen/bath remodels, or any renovation involving electrical, plumbing, or structural modifications, doors/windows, or wall changes in the Town of Nunn. Governed by the 2018 IRC as locally amended; the Town publishes dedicated homeowner guides for Basement Finish and Home Additions scopes.

Reviewed 2026-07-06 · Source

Requirements

  • Planning Board approval required before SAFEbuilt review begins if the project involves a structure or addition over 120 sq ft
  • Submit one set of plans showing before-and-after conditions, square footage by area, and a detailed description of proposed use
  • If walls are proposed for removal, plans must address structural implications (per general IRC/IBC provisions on structural elements)
  • Any exterior egress window well added or altered must comply with IRC R310.2.3 dimension requirements as locally amended
  • All contractors performing electrical or plumbing work must hold a current Colorado DORA state license, verified by the Town per its Electrical/Plumbing License Contemporaneous Review Guidelines (HB19-1086)

Required documents

  • RequiredBuilding Permit ApplicationSubmitted to the Town Clerk's Office or by email
  • RequiredPlans (before/after, floor plan with square footage)Per the Town's general plan-submittal guidance; scope-specific homeowner guides available (Basement Finish, Home Additions)

Fee schedule

Fee typeAmountNotes
Building Permit Fee and Plan Review FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution per NMC 15.04.010/15.04.100/15.08.060; calculated by SAFEbuilt and invoiced by the Town on a per-application basis

Electrical Permit

Required for electrical system installation, alteration, or repair in Nunn. The Town does NOT run its own certified electrical licensing/permitting program — it defers to the Colorado State Electrical Board (DORA) for tradesperson licensure, with contemporaneous license verification performed by the Town per C.R.S. 12-115-120(1)/(10) as amended by HB19-1086, applicable to all SAFEbuilt inspections since December 1, 2019.

Reviewed 2026-07-06 · Source

Requirements

  • Electrical-only permit applications must list the electrician's Colorado DORA state electrical license number
  • The Town verifies the listed electrician's license is active via the Colorado DORA online license lookup before accepting the application; an unverifiable license results in rejection
  • If the electrician performing/overseeing the work changes before final inspection, the Town must be notified and will re-verify the new electrician's license before work may continue
  • SAFEbuilt inspectors may, at their discretion, verify electrician identity at any inspection (not only rough/final) and may fail an inspection if unverifiable
  • Codified governing standard is the National Electrical Code, 2002 edition (NMC 15.04.040); note SAFEbuilt's own current Photovoltaic System Submittal Requirements handout instead cites the 2020 NEC as the applicable current code — this discrepancy between the codified text and the contracted reviewer's operational reference is unresolved as of this verification

Required documents

  • RequiredBuilding Permit Application (Electrical scope)Must list electrician name and Colorado DORA electrical license number

Fee schedule

Fee typeAmountNotes
Electrical Permit FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution; calculated by SAFEbuilt and invoiced by the Town

Plumbing Permit

Required for plumbing system installation, alteration, or repair in Nunn. Governed by the 2018 International Plumbing Code as locally amended. Like electrical work, Nunn defers plumber licensure entirely to the Colorado State Plumbing Board (DORA) rather than running its own local plumbing contractor licensing program, with contemporaneous license verification required by the Town per HB19-1086.

Reviewed 2026-07-06 · Source

Requirements

  • Plumbing-only permit applications must list the plumber's Colorado DORA state plumbing license number
  • The Town verifies the listed plumber's license is active via the Colorado DORA online license lookup before accepting the application
  • If the plumber performing/overseeing the work changes before final inspection, the Town must be notified and will re-verify the new plumber's license; unverified changes require work to stop
  • Governed by the 2018 IPC as locally amended (e.g., 12-inch minimum sewer depth per IPC 305.4.1/903.1 as amended, reclaimed water systems provision deleted)

Required documents

  • RequiredBuilding Permit Application (Plumbing scope)Must list plumber name and Colorado DORA plumbing license number

Fee schedule

Fee typeAmountNotes
Plumbing Permit FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution; calculated by SAFEbuilt and invoiced by the Town

Mechanical / HVAC Permit

Required for furnace, boiler, and gas piping installation or replacement in Nunn. Governed by the 2018 International Mechanical Code and 2018 International Fuel Gas Code as locally amended (e.g., 18-inch minimum plastic fuel gas pipe burial depth, 10 psig test pressure, 15-minute test duration for small-volume/single-family systems).

Reviewed 2026-07-06 · Source

Requirements

  • Furnace installations/replacements, boiler installations/replacements, and gas piping over 10 feet in length all explicitly require a permit per the Town's own building-permit-needed list
  • Governed by the 2018 IMC and 2018 IFGC as locally amended
  • Gas piping test requirements per IFGC 406.4.1/406.4.2 as amended: 10 psig test pressure, minimum 15-minute test duration for systems under 10 cubic feet or single-family dwellings
  • Plastic fuel gas piping must be buried at least 18 inches below grade per IFGC 404.12 as amended

Required documents

  • RequiredBuilding Permit Application (Mechanical/HVAC scope)Submitted to the Town Clerk's Office or by email

Fee schedule

Fee typeAmountNotes
Mechanical Permit FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution; calculated by SAFEbuilt and invoiced by the Town

Re-Roof Permit

Required for re-roofing work in Nunn (shingle repair/replacement exceeding 100 sq ft/one square is the only exempted minor scope). Governed by the 2018 IRC/IBC as locally amended, with a mandatory ice barrier underlayment requirement per IRC R905.1.2 documented in the Town's own Ice & Water Shield Requirements handout.

Reviewed 2026-07-06 · Source

Requirements

  • Re-roofing is explicitly listed as requiring a building permit on the Town's project list; only shingle repair/replacement work not exceeding 100 sq ft (one square) of covering per building is exempt, per IBC/IRC section 105.2/R105.2 as locally amended
  • Ice barrier underlayment required per 2018 IRC R905.1.2: not fewer than two cemented underlayment layers (or a self-adhering polymer-modified bitumen sheet), extending from the lowest roof edge to at least 24 inches inside the exterior wall line (36 inches on slopes at or above 8:12); exception for detached accessory structures without conditioned floor area
  • The Town publishes a dedicated 2024 IRC Re-Roof homeowner guide

Required documents

  • RequiredBuilding Permit Application (Re-Roof scope)Submitted to the Town Clerk's Office or by email
  • RequiredRoof plan / material specificationPer the Town's Re-Roof Guide and Ice & Water Shield Requirements handout

Fee schedule

Fee typeAmountNotes
Building Permit FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution; calculated by SAFEbuilt and invoiced by the Town

Rooftop / Ground-Mounted Solar Photovoltaic Permit

Required for solar panel installation or replacement in Nunn. SAFEbuilt (the Town's contracted plan-review/inspection agency) publishes a dedicated Photovoltaic System Submittal Requirements packet specifying current applicable codes as the 2020 NEC and 2018 International Codes, plus structural engineering letter requirements for roof-mounted and ground-mounted systems.

Reviewed 2026-07-06 · Source

Requirements

  • Permit application (emailed to the Town or submitted online) must fully describe the work, with valuation based on total cost to the customer (contract price) including materials and labor regardless of who supplies them
  • A separate plan review — and potentially a separate permit — is required for each building/address on a property
  • Per SAFEbuilt's Photovoltaic System Submittal Requirements packet, applicable current codes are the 2020 NEC and 2018 International Codes (this is SAFEbuilt's own stated reference and differs from the 2002 NEC edition still shown in the codified Nunn Municipal Code text at NMC 15.04.040 — see localAmendments note)
  • Roof-mounted systems require a structural engineer's stamped letter addressing added roof weight and additional wind load from the panels, designed to a minimum ground snow load of 30 psf, wind speed of 115 mph Vult, Exposure C, and Seismic Design Category B, including roof connection/embedment type
  • Ground-mounted systems require an engineer-stamped letter for system support and wind load, using the same 30 psf snow load / 115 mph Vult / Exposure C / Seismic Design Category B design basis

Required documents

  • RequiredBuilding Permit Application (Photovoltaic scope)Emailed to the Town or submitted via the online application; valuation must reflect total contract price
  • RequiredStructural Engineer's Stamped LetterRoof-mounted: addressing added weight, wind load, and roof connection/embedment, designed to 30 psf snow load / 115 mph Vult / Exposure C / Seismic Design Category B. Ground-mounted: addressing system support and wind load under the same design basis.

Fee schedule

Fee typeAmountNotes
Building/Electrical Permit FeeNot independently verifiable — no published fee schedule existsSAFEbuilt's Photovoltaic System Submittal Requirements packet states valuation is based on total cost to the customer (contract price including materials and labor); set by Town Board Resolution and calculated by SAFEbuilt

Demolition Permit

Required to demolish any building or structure in the Town of Nunn, per the Town's general building-permit requirement (Title 15) and its own project list, which explicitly names 'Demolitions' as requiring a permit.

Reviewed 2026-07-06 · Source

Requirements

  • A permit is required before demolishing any building or structure per NMC 15.08.010/15.08.020 and the Town's own building-permit-needed project list
  • Application and plans/description submitted to the Town Clerk's Office or by email, then forwarded to SAFEbuilt

Required documents

  • RequiredBuilding Permit Application (Demolition scope)Describes the structure to be demolished and disposal/site-restoration plan

Fee schedule

Fee typeAmountNotes
Demolition Permit FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution; calculated by SAFEbuilt and invoiced by the Town

Deck / Patio Cover / Carport Permit

Required for decks, patio covers, carports, and pergolas in the Town of Nunn, per the Town's own project list. The Town publishes dedicated 2024 IRC homeowner guides for Decks and Patio Covers/Carports.

Reviewed 2026-07-06 · Source

Requirements

  • Decks, patio covers, carports, and pergolas are explicitly listed on the Town's building-permit-needed project list
  • Attached and detached garages/carports also require a permit
  • One set of plans showing site plan, square footage, and construction details submitted to the Town Clerk's Office or by email
  • Foundation/footing design subject to Nunn's Climatic and Geographic Design Criteria (30 psf ground snow load, 30-inch frost depth)

Required documents

  • RequiredBuilding Permit Application (Deck/Patio Cover/Carport scope)Submitted to the Town Clerk's Office or by email
  • RequiredSite Plan and Construction DetailsPer the Town's Decks Guide and Patio Covers/Carports Guide

Fee schedule

Fee typeAmountNotes
Building Permit FeeNot independently verifiable — no published fee schedule existsSet by Town Board Resolution; calculated by SAFEbuilt and invoiced by the Town

Sources & verification

Key facts verified against official sources. Last reviewed 2026-07-06.

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 Nunn building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Later version (2026-07-07) →View current record →All versions →

Permalink: /colorado/weld-county/nunn/as-of/2026-07-06/

Snapshot date: 2026-07-06

Commit: 6070dd5

Reproducible from PermitBase’s version-controlled dataset, commit 6070dd5.