Residential Permits

Residential permit applications

Contractors are required to have a valid license from a jurisdiction with an ICC equivalent exam, certificate of liability of insurance, workers compensation insurance (if applicable) and current registration with the Town of Castle Rock prior to applying for a building permit. Visit eTrakiT for contractor registration and renewal information. 

Homeowners may act as their own contractor for residential additions, alterations or repairs. Homeowner Affidavit - this form is required for homeowner’s performing their own work and acting as their own general contractor.

Submitting applications

Residential building permit types are available through eTrakiT. The Town of Castle Rock Building Division supports Project Green. Project Green promotes an environmentally responsible and sustainable Town workforce, which includes paperless building permit applications. Applicants are strongly encouraged to submit their plans electronically in PDF format for review through eTrakiT. 

Alternate methods

As an alternate to eTrakiT, applicants may send their building permit application packages: 

Residential permits

Some permit types may not require a plan review. These are Residential Roof (for re-roofing projects), Residential AC, Residential Furnace, Residential Water Softener, Residential Water Heater (if tankless, a review will be added after submittal for review of gas piping load calculations). Items required for submittal will be noted in the application process. For questions please contact the Building Division by email or by phone at 720-733-3527 for questions regarding requirements and plan review.

Please note - tankless water heaters require a plan review. Please provide the manufacturers specification sheet and gas piping load calculations with your submittal.

Residential fire sprinklers

Fire Protection plans should be submitted directly to the Fire Department, a permit application is required. All other permits for the Fire Department are directly linked with eTrakit.

Temporary erosion and sediment control (TESC)

As of July 1, 2019, changes to the erosion control program for residential building are in effect. Residential developments must comply with the new vertical residential TESC Permit requirements.  No building permits will be released without an approved TESC Plan and Permit in place. 

Vertical Residential TESC Permit Submittal requirements:

Submit to

Single-family custom homes require a Low Impact TESC Permit.  Requirements can be found in Section 7 of the TESC Manual (PDF)

Multi-family residential projects, other than paired-home construction, are subject to the regulatory authority of the Standard TESC Permit Program from the start of grading operations through final Close-out Acceptance.  They do not require a separate Vertical Residential TESC Permit for vertical construction.

For more information, see step-by-step instructions(PDF).

Residential bonding for final grade

When final grade cannot be achieved due to weather, the permittee may submit the completed form on page 2 of the Residential Bonding Policy (PDF) for final grade to request approval to post a Fiscal Surety. Bonds will be approved only in cases where final grade cannot be established because of adverse site conditions caused by weather at the time of the final inspection. Bonds for reasons other than weather-related site conditions will be considered on a case-by-case basis and are subject to denial. Temporary sediment controls are required at all times regardless of weather conditions.

Fee Schedule

Residential Permits

Permit type
Residential detached tract home  
Residential attached (townhouses etc) home  
Custom Home  
Master Plans  
Basement finish
Deck and Porch Uncovered checklist
Covered deck, porch, patio,pergola checklist
Gas line for appliances
Gas line and sewer line repair
Residential air conditioning*
Residential attached garage
Residential detached garage
Residential electric
Residential furnace*

Residential hot tub, pool or spa


Residential miscellaneous


Residential retaining wall


Residential roof


Residential solar


Residential water heater*


Residential water heater - tankless**