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Residential Addition / Remodel / Basement Finish Permit in Berthoud, Colorado

Required for additions, interior remodels, and basement finishes to existing one- and two-family homes and townhomes in Berthoud. Reviewed under the 2024 IRC as locally amended; basement finishes are billed as a distinct flat-fee category on the Town's fee schedule.

Verified 2026-07-06 · Source

When you need this permit

  • Additions must comply with the same Climatic and Geographic Design Criteria and IECC/Appendix RM electric-and-solar-ready provisions as new construction where the addition constitutes a 'major renovation'
  • A Licensed Colorado design professional's stamp is required where structural elements (wall removal, new foundations) are involved
  • Contractor must hold the applicable Town of Berthoud contractor license (Residential General Contractor C for additions/remodels/basement finishes, or Trade Contractor for smaller interior remodel/handyman-scope work) per Ordinance No. 1376 Contractor
  • Basement Finish permits are billed as a distinct flat fee on the Town's 2026 fee schedule rather than the full valuation-based Appendix AB table

Required documents

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Fee schedule

Residential Construction Permit Fee (Additions/Remodels)2026 Schedule of Rates, Charges and Fees
Per the 2024 IRC Appendix AB valuation-based fee table, plus $50 Administration and $50 Technology fee
Basement Finish Permit FeeDistinct flat-fee line item on the 2026 fee schedule, not the valuation-based table
$100.00 flat
Plan Review Fee
65% of the Permit Fee
Use Tax
4% Town + 1.05% Larimer County, per the standard formula

Review timeline

Plan review
Not published — contact the department

How long did your Residential Addition / Remodel / Basement Finish Permit permit actually take in Berthoud?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Foundation (additions with new footings only)

    Before concrete pour

  2. 2

    Rough Frame / Insulation

    Framing complete and insulation installed before cover

  3. 3

    Rough Electrical / Plumbing / Mechanical

    Trade rough-ins before concealment

  4. 4

    Final Inspection

    All work complete per approved plans

See the full Berthoud inspection guide — scheduling & re-inspection fees →

Tips

  • Basement Finish permits are billed as a flat $100 fee rather than the full valuation-based Appendix AB schedule used for additions and new construction — don't over-estimate the fee for a straightforward basement finish-out.
  • Confirm whether your remodel scope requires a Residential General Contractor C license or qualifies for the lighter-weight Trade Contractor category (small interior remodel/handyman-scope projects) before your contractor applies for the Town license.

Frequently asked questions

Berthoud requires a residential addition / remodel / basement finish permit for: Additions must comply with the same Climatic and Geographic Design Criteria and IECC/Appendix RM electric-and-solar-ready provisions as new construction where the addition constitutes a 'major renovation'; A Licensed Colorado design professional's stamp is required where structural elements (wall removal, new foundations) are involved; Contractor must hold the applicable Town of Berthoud contractor license (Residential General Contractor C for additions/remodels/basement finishes, or Trade Contractor for smaller interior remodel/handyman-scope work) per Ordinance No. 1376; Basement Finish permits are billed as a distinct flat fee on the Town's 2026 fee schedule rather than the full valuation-based Appendix AB table. If your project isn't listed, confirm with Town of Berthoud Planning & Building Department at 970-532-2643 (option 3); alt. 970-344-5828 before starting work.

In Berthoud, the published Residential Construction Permit Fee (Additions/Remodels) is: Per the 2024 IRC Appendix AB valuation-based fee table, plus $50 Administration and $50 Technology fee. Additional published fees: Basement Finish Permit Fee — $100.00 flat; Plan Review Fee — 65% of the Permit Fee; Use Tax — 4% Town + 1.05% Larimer County, per the standard formula. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Berthoud does not publish a plan-review timeline for this permit. Contact Town of Berthoud Planning & Building Department at 970-532-2643 (option 3); alt. 970-344-5828 for current turnaround.

You'll need: Building Permit Application (CommunityCore); 2024 IRC Building Guide — Home Additions. Depending on your project, Berthoud may also ask for: 2024 IRC Residential Basement Finish guide. See the required-documents checklist on this page for details on each.

Berthoud requires 4 inspection(s) for a residential addition / remodel / basement finish permit, in order: Foundation (additions with new footings only), Rough Frame / Insulation, Rough Electrical / Plumbing / Mechanical, Final Inspection. Schedule each through Town of Berthoud Planning & Building Department (970-532-2643 (option 3); alt. 970-344-5828).

Apply through Town of Berthoud Planning & Building Department at 807 Mountain Ave, Berthoud, CO 80513 (PO Box 1229, Berthoud, CO 80513). Phone: 970-532-2643 (option 3); alt. 970-344-5828, email: building@berthoud.org. Office hours: Main line 970-532-2643 option 3 (fax 970-532-0640). Inspections are performed under contract by SAFEbuilt/ProCode — phone 970-305-3161 ext. 1, online scheduling via the Town's CommunityCore portal; inspection requests must be received by 4 p.m. for next-business-day completion.. Official information: https://www.berthoud.org/169/Building-Department.

Berthoud, Colorado has adopted: 2024 International Building Code (IBC) — Chapters 1-33 and Appendix Chapter I, adopted by reference with local amendments (Berthoud Municipal Code Chapter 11.1); 2024 International Residential Code (IRC) — Chapters 1-43 and Appendix AB, adopted by reference with local amendments (Chapter 11.2). Fee schedule is explicitly keyed to '2024 IRC Appendix AB' as the valuation-based fee table.; 2024 International Existing Building Code (IEBC) — Chapters 1-16 (Chapter 11.3); 2024 International Energy Conservation Code (IECC) — Commercial Chapters 1-6, Residential Chapters 1-6, INCLUDING Appendix CK (Colorado Model Electric and Solar Ready Code — Commercial) and Appendix RM (Colorado Model Electric and Solar Ready Code — Residential) (Chapter 11.4); 2023 National Electrical Code (NEC / NFPA 70) (Chapter 11.5); 2024 International Plumbing Code (IPC) — Chapters 1-13 (Chapter 11.10); 2024 International Mechanical Code (IMC) — Chapters 1-15 (Chapter 11.16); 2024 International Fuel Gas Code (IFGC) — Chapters 1-8 (Chapter 11.17); Colorado State Regulation 86 (Graywater Systems) — Town of Berthoud is the designated local agency for graywater oversight (Chapter 11.18); 2024 International Swimming Pool and Spa Code (ISPSC) — Chapters 1-11 (Chapter 11.19); 2024 International Property Maintenance Code (IPMC) — Chapters 1-8 (Chapter 11.20); HB22-1362 statewide energy code floor: Berthoud's 2024 IECC adoption explicitly incorporates Appendix CK and Appendix RM (the Colorado Energy Office's model Electric Ready / Solar Ready / EV Ready code), satisfying HB22-1362's statewide low-energy/electric-and-solar-ready requirement. Confirmed directly from the Town's own 2024 I-Code Amendment ordinance text (Berthoud Municipal Code Chapter 11.4), not inferred.. Local amendments apply — see the Berthoud overview page for the full list.

Yes. The Town's 2026 fee schedule lists Basement Finish as a distinct flat $100.00 permit fee, separate from the valuation-based 2024 IRC Appendix AB fee table used for additions and new residential construction.

Sources & verification

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

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