On this page 6
When a permit is required
Permit triggers and exempt work for New Castle
Permit required for construction work within town limits.
- permit application
- plan sets
- soils analysis for new builds
- site plan
- stamped structural drawings as applicable
- Building code
- 2021 International Building Codes with town amendments; page also references 2021 IECC requirements and 2023 Colorado Model Electrical and Solar Ready Codes
- Contractor requirements
- all contractors and subcontractors must have a valid Town of New Castle business license
Application process
Application → plan check → issuance → inspection → final
- 01 Complete permit application and checklist.
- 02 Include soils analysis, site plan, and engineered stamped structural drawings for new builds.
- 03 Email the complete packet to permitting@newcastlecolorado.org.
- 04 Town reviews for completeness, zoning, land use code, 2021 IBC compliance, and applicable historic district characteristics, then calculates fees and issues permit.
Source: Building Department / Planning and Code Administration ↗
Fee schedule
New Castle building permit fees
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
Required inspections
Scheduling and sequence
- Contact the Building Department (phone)
- Scheduling deadline
- 24-hour notice required for inspections
Typical sequence: not fully published in one page, but town indicates inspections are required
Frequently asked
Common questions about New Castle permits
01 Do I need a building permit in New Castle, CO? ▸
02 How much does a building permit cost in New Castle, CO? ▸
03 How do I apply for a building permit in New Castle, CO? ▸
04 How do I schedule a building inspection in New Castle, CO? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Department / Planning and Code Administration before applying. Jaspector is not legal advice.