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 and are marked as OTC  (over the counter). Please refer to the eTrakiT online checklist or contact the Building Division by email for questions regarding plan review.

Tankless water heaters require a plan review. Please provide the manufacturers specification sheet and 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.

Drainage, erosion and sediment control (DESC)

DESC permit

The DESC permit covers temporary land disturbing activities and site grading required for individual single-family or multi-family residential lots during building construction. 

A DESC permit is required for all new single-family tract, custom, multi-family and attached residences.

DESC plan

A DESC plan must be submitted and approved prior to issuance of a DESC permit.  Checklist for Developing a DESC plan

DESC inspections

An initial DESC inspection is required before construction begins.

DESC 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 Town bonding policies 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.

For more information, see Section 8 of the GESC/DESC Manual.

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**