Interactive Tool

ADU Cost Calculator

Estimate the cost of your ADU project based on size, construction type, location, and other factors

Project Details

Enter the details of your ADU project to get a cost estimate

ADU Type

Construction Type

Square Footage: 400 sq ft

200 sq ft1200 sq ft

Location

Finish Level

Site Complexity

Cost Estimate

Based on your project details, here's an estimated breakdown of costs

Construction Cost

$154,000

Permitting

$12,320

Design & Engineering

$15,400

Site Work

$15,000

Utilities

$15,000

$211,720

This is an estimate based on the information provided. Actual costs may vary.

See your monthly payment options from ADU-specialized lenders.

Using a preapproved plan can save $10,000-$20,000 in design and permitting costs
Modular construction typically saves 10-15% compared to traditional construction
Standard finishes vs. premium can save 15-20% on interior costs

This calculator provides an estimate based on average costs in your area. For a detailed quote specific to your project, please contact our team.

Ready to Start Your ADU Project?

Our team is here to help you navigate the entire process, from design to financing to construction.