Blog categorized as ADU Guide

How Much Does an ADU Permit Cost in San Diego County, California?

Built an ADU in San Diego? Or just planning? Good move. San Diego County’s rules can trip up even seasoned homeowners. This page unpacks what you’ll pay in plain language, with all the real numbers and recent law changes you need to know. No fluff, just facts. Time to see what you’re really in for.

ADU Guide - Everything You Need To Know
From the design point of view, an auxiliary housing unit (ADU) is a secondary living space that is built on the same plot as an existing house. It is sometimes called a granny flat, casetta or in-law suite.
This guide answers everything — from ADU vs DADU, permits, garage conversions, to whether you can legally sell or rent your ADU in California.
If you are thinking about ADU grants, costs, rules and long -term benefits in 2025, then this guide provides you with all the information necessary.
For landlords, buyers, or even investors, knowing what the housing unit is, can bring a huge difference. It affects property value, rent opportunities, and even what you are allowed to build. Let us understand it in simple language.