What Comments Do Plan Checkers Usually Flag on ADU ...
Learn the most common plan check corrections on ADU applications in California, why they happen, and how to avoid them t...
GatherADU Blog
ADU Resources & Blog
Expert guides, tips, and the latest news about ADU development in California
Latest Articles
How Long Does ADU Plan Check Really Take in California?
Real timelines for ADU plan check across California cities, what affects review duration, common causes of delays, and p...
How Much Extra Does a Two-Story ADU Cost Compared to ...
Detailed cost comparison between single-story and two-story ADUs in California, covering structural premiums, foundation...
How to Coordinate Drainage and Grading for Your ADU Project
A practical guide to drainage planning and grading requirements for ADU construction in California, covering site gradin...
How to Maximize Interior Space in a 500 Square Foot ADU
Practical design strategies, layout tips, and space-saving solutions to make a 500 square foot ADU feel spacious, functi...
What Interior Finishes Do ADU Buyers and Renters Care ...
Learn which interior finishes matter most to ADU renters and buyers in California, from kitchen countertops to bathroom ...
Should Your ADU Share a Roof with the Main House?
Complete guide to Should Your ADU Share a Roof with the Main House?. Expert advice on planning, budgeting, and building ...
What Is the Typical General Contractor Markup on ADUs?
Understand how general contractor markup works on ADU projects, what percentage is typical, the difference between marku...
Can You Build an ADU Under $100K If You DIY Parts of It?
A realistic look at whether you can build an ADU for under $100,000 by doing some of the work yourself, covering what yo...
What Permit Fees Surprised ADU Homeowners the Most?
Complete guide to What Permit Fees Surprised ADU Homeowners the Most?. Expert advice on planning, budgeting,. Get action...
How Much Does a Separate Sewer Lateral Connection Cost ...
Understand the full cost of a separate sewer lateral connection for your ADU in California, including costs by city, whe...
Should You Budget for Separate Utility Hookups on Your ADU?
Understand when separate utility hookups are required for ADUs in California, what water, sewer, electrical, and gas con...
Plan Check Fees by City: What California Homeowners ...
Compare ADU plan check fees across major California cities including Los Angeles, San Diego, San Francisco, Oakland, Lon...
Hidden ADU Costs: What Unexpected Expenses Hit ...
Complete guide to Hidden ADU Costs: What Unexpected Expenses Hit .... Expert advice on planning, budgeting, and building...
Why Did the Contractor Quote Higher Than $200 Per Square ...
Understand why ADU construction costs often exceed $200 per square foot in California, with a detailed breakdown of cost...
Does My City Require Fire-Rated Separation for ADUs?
Understand fire-rated separation requirements for ADUs in California, including fire codes, separation distances, rated ...
When Should You Order a Survey for Your ADU Project?
Understand the types of property surveys needed for ADU projects, when to order them, what they cost, and what surveyors...
How to Document Existing Conditions Before ADU Design
Learn how to properly document existing site conditions before starting your ADU design, including surveys, photos, meas...
Can an ADU Go in My Front Yard? Rules and Exceptions ...
Learn whether you can build an ADU in your front yard in California. Covers front yard setback rules, local vs. state re...
How Do I Know If My Property Qualifies for an ADU?
A comprehensive checklist to determine if your California property qualifies for an ADU, covering zoning, lot size, setb...
Fighting HOA Denials: California ADU Rights Explained 2026
Complete guide to your ADU rights against HOA restrictions in California 2026. Learn how to challenge CC&R denials, what...
Best Flooring for Rental ADUs: Durability vs Cost Guide 2026
Complete guide to choosing flooring for your rental ADU. Compare LVP, laminate, tile, and carpet for durability, cost, t...
ADU Window Requirements: Egress, Size, and Energy Codes ...
Complete guide to ADU window requirements in California 2026. Learn egress window sizes, natural light minimums, ventila...
Soundproofing Your ADU: How to Keep Peace with Neighbors
Complete guide to soundproofing your ADU for tenant privacy and neighbor relations. Learn STC ratings, wall assemblies, ...
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