ADU Planning Guides

Compare ADU types, costs, rules, financing options, and builder questions before you commit to a project.

Backyard Cottage

Detached structure in your backyard. Maximum privacy and highest rental income. Typically $170K–$400K.

Garage Conversion

Convert an existing garage into a full living unit. Best ROI of any ADU type. Typically $80K–$150K.

Basement ADU

Fastest path using your existing footprint. Walk-out basements ideal. Typically $60K–$120K.

ADU Financing

HELOCs, cash-out refinance, and Colorado ADU loan programs. Compare options before you commit.

ADU Permitting

Plain-English permit guidance by city, so you know the forms, timelines, and questions before you hire.

ROI Analysis

Free financial model for your property. Rental income projections and break-even timelines.

ADU Cost Guide

Real cost data from 150+ Colorado projects. Compare ADU types side by side before you commit.

Junior ADU (JADU)

Under $80K. No addition required — converts interior space with a private entrance.

ADU Design

Understand what permit-ready plans usually include, what they cost, and what to ask a designer.