Residential Building Permit (New Construction) in Caldwell, Idaho
Required for all new one- and two-family dwellings, duplexes, and townhouses in Caldwell. Apply through the Citizenserve online portal at citizenserve.com (installation ID 263). Separate trade permits required for electrical, plumbing, and mechanical work.
Verified 2026-06-29 · Source
When you need this permit
- Verify proposed use is compatible with current zoning with the Planning & Zoning Division before applying
- Submit permit application through the Citizenserve online portal — paper submittals not accepted for residential subdivision projects
- Plans must comply with 2018 IRC and 2018 IECC with State Amendments
- Two full sets of plans required for new single-family dwellings, duplexes, and townhouses
- Site plan at 1/20 scale minimum with lot lines, easements, drainage, north arrow, lot corner and foundation elevations
- Foundation plan with reinforcement details, ventilation
- Floor plan with building dimensions, window and door sizes, smoke detectors
- Wall section with framing, insulation, roof system details
- Elevations — front, back, and both sides
- Energy compliance form — Prescriptive Report or RESCHECK (2018 IECC)
- Floodplain certificate if project is in a designated flood plain
- Plan review fees paid in full at time of submittal
- Approved plans must remain on site for all inspections
Required documents
- Req
Residential Building Permit Application
City of Caldwell building permit application for residential/utility construction; available in the residential permit packet at cityofcaldwell.org
- Req
Residential Permit Packet
Full application packet and guide for new residential construction; available at cityofcaldwell.org/files/assets/city/v/1/building/documents/permit-apps/residential-permit-packet.pdf
- Req
Contractor Registration Declaration
Idaho Code 54-5209 requires contractor registration number on all permits; owner-builders exempt per Idaho Code 54-5205
- Req
Energy Compliance Form (RESCHECK or Prescriptive Report)
Demonstrates 2018 IECC with State Amendments compliance; Manual J and D calculations also required
- Req
IECC Residential Energy Compliance Certificate
Fillable PDF available at cityofcaldwell.org; required at project completion
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit — valuation $0–$499 | $34.00 flat | Caldwell Building Safety Fees Resolution No. 300-25, Table 1 |
| Building Permit — valuation $500–$1,999 | $34.00 base + $0.02624 per dollar above $500 | Resolution No. 300-25, Table 1 |
| Building Permit — valuation $2,000–$24,999 | $64.37 base + $0.01135 per dollar above $2,000 | Resolution No. 300-25, Table 1 |
| Building Permit — valuation $25,000–$49,999 | $326.54 base + $0.0085 per dollar above $25,000 | Resolution No. 300-25, Table 1 |
| Building Permit — valuation $50,000–$99,999 | $549.65 base + $0.00565 per dollar above $50,000 | Resolution No. 300-25, Table 1 |
| Building Permit — valuation $100,000–$499,999 | $846.27 base + $0.004546 per dollar above $100,000 | Resolution No. 300-25, Table 1 |
| Building Permit — valuation $500,000–$999,999 | $2,755.45 base + $0.004336 per dollar above $500,000 | Resolution No. 300-25, Table 1 |
| Building Permit — valuation $1,000,000+ | $5,031.78 base + $0.003650 per dollar above $1,000,000 | Resolution No. 300-25, Table 1 |
| Residential Building Plan Review Fee | 40% of building permit fee | Resolution No. 300-25, Section I-D-2a; covers initial review through 3rd review |
| Planning & Zoning Plan Review Fee (residential) | 35% of building permit fee (minimum $55.00) | Resolution No. 300-25, Section I-D-2b |
| Engineering Plan Review Fee (residential) | 20% of building permit fee | Resolution No. 300-25, Section I-D-2c |
| Reinspection (3rd inspection / 2nd reinspection for same work segment) | $60.00 | Resolution No. 300-25, Section V-C; first reinspection is no charge; reinspection fee levy is at building official's discretion |
Review timeline
7–10 business days
Caldwell’s published plan-review target
Inspection process
- 1
Footing / Foundation
Before concrete pour — verify depth (24-inch frost line), forms, reinforcement
- 2
Framing
After structural framing, sheathing, and rough-in trades complete — before insulation or wall cover
- 3
Insulation / Energy
Insulation installed per 2018 IECC with State Amendments before drywall
- 4
Final
All work complete per approved plans; Certificate of Occupancy issued for residential structures upon passing
Tips
- Caldwell's published plan review timeframe for one- and two-family residential is approximately 7–10 business days for the initial review (up to 5 additional business days may be added based on workload).
- Plan review fees must be paid in full at time of submittal — work does not begin until fees are paid and the submission is accepted.
- All commercial, multi-family, and residential subdivision permit submittals must go through the Citizenserve online portal; paper submittals are not accepted for these categories.
- Verify zoning compatibility with Planning & Zoning Division before submitting — zoning issues discovered during review cause costly delays.
- Permits expire if work is not commenced within 180 days of issuance or is abandoned for 180 days. Expired permits are not eligible for extension.
- For concrete pours, call the inspection line early to ensure the project is ready at the requested time — rescheduling requires a next-business-day inspection.
Frequently asked questions
- How long does a new residential building permit take in Caldwell?
- Per the Building Safety Division's published timeframes, one- and two-family residential applications take approximately 7–10 business days for the initial plan review (may be extended by up to 5 business days based on workload). Timelines start only after the submittal is deemed complete, fees are paid, and the submission is accepted.
- Do I need to check zoning before applying for a building permit in Caldwell?
- Yes. The Building Safety Division requires applicants to check with the Planning & Zoning Division to verify the proposed use is compatible with the current zoning and that no other entitlements are required before submitting a building permit application.
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- City of Caldwell Department of Building Safety — official building department
- Building Safety Division | City of Caldwell
- Applications and Forms | City of Caldwell Building Safety
- Residential Permit Packet (PDF)
- Building Safety Fees — Resolution No. 300-25 (PDF)
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 Caldwell building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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