Estimate ADU Fees and Costs
First, review the Financing Guide to learn about costs associated with creating an ADU. Next, estimate County permit fees, hard and soft construction costs, and cash flow over time in three easy steps using the County’s Estimator. You will need to enter your Assessor’s Parcel Number (APN) into the Estimator.
Fee, Cost and Cash Flow EstimatorInstructions for Using the EstimatorWhat’s my APN?ADU Financing Guide
PLEASE NOTE: This tool does NOT estimate fees for non-County agencies. Also, fees for Junior ADUs (JADUs) will be the same as fees for standard home renovation projects. Any non-ADU project (including a JADU project) should instead use the County’s standard Residential Building Permit Fee Estimate Worksheet for accurate fee estimates.
QUESTIONS about how to use the Estimator tool? Building and Zoning staff is happy to help. Please contact Planning.ZoningInfo@santacruzcounty.us or call (831) 454-2130 for questions related to planning and zoning and (831) 454-2260 for questions related to building permits.
Minimize the Cost of Your ADU
There are many styles of ADUs, beyond the cute, stand-alone "back yard cottage," which is the most expensive type of construction. Consider all the options that could meet your housing needs before settling on a style of construction and location for your ADU.
Consider whether a remodel to your existing single family home would meet your needs.
Consider a Conversion ADU
Consider converting an existing garage
Consider an addition to an existing structure
Consider pre-fab homes
Explore various site-planning techniques