r/AccessoryDwellings
6k members
r/AccessoryDwellings is a subreddit with 6k members. The most common kinds of discussions are pain & anger and advice requests, and the community frequently discusses adu, california, building, garage, and cost.
An accessory dwelling unit (ADU) is a smaller, independent residential dwelling unit located on the same lot as a stand-alone (i.e., detached) single-family home. ADUs go by many different names throughout the U.S., including accessory apartments, secondary suites, and granny flats.
Popular Themes in r/AccessoryDwellings
#1
Pain & Anger
: "Bay Area ADU project nightmare — 15+ months, roof sagging, poor workmanship, GC careless. What would you do?"
2 posts
#2
Advice Requests
: "What insurance do i need as an owner builder"
2 posts
#3
Solution Requests
: "Couple built a $500K ADU in their parents' backyard to beat $1.8M home prices. Is there a better way?"
1 post
#4
Ideas
: "Build & Sell an ADU Separately?! .. Game Changer!! Thoughts ?"
1 post
Popular Topics in r/AccessoryDwellings
#1
Adu
: "How to build an Adu in California as an owner-builder"
144 posts
#2
California
: "How to build an ADU in California as an owner-builder"
52 posts
#3
Building
: "Curious About Building an ADU in California? Let’s Talk"
38 posts
#4
Garage
: "Adding an ADU to a detached Garage, good idea or expensive?"
28 posts
#5
Cost
: "ADU Cost per SF"
16 posts
#6
Prefab
9 posts
#7
Renting
9 posts
#8
Shipping Container
7 posts
#9
Layout
: "Where can I can find a AdU Layout for one that is connected to a detached garage?"
6 posts
#10
Recommendations
5 posts
Member Growth in r/AccessoryDwellings
Yearly
+4k members(165.9%)
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Last updated: August 10, 2026