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Walnut · ADU permits
Welcome from the Walnut permit page. 151 ADU permits issued in 2025.
Drop your Walnut address below to run the full pathway for your specific lot.
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Run your address to see what you can build, what permits you'll need, and which Accessory Dwelling Unit (ADU) options fit your lot. Type it above or pin it on the map below.
The same zoning lookups, overlay checks, and Los Angeles Department of Building and Safety (LADBS) workflow a $5K–$15K permit expediter walks you through, in your browser.
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Try the wizard on these LA properties
Rotates daily · in high-ADU-volume LA neighborhoods
Midvale Estates
For sale6648 Peach Ave, Van Nuys, CA 91406
RE11-1 zone, 11,300 sqft remodeled property in Midvale Estates. Premium ADU opportunity — RIO (River Improvement Overlay) adds review but lot size carries the project.
Northridge
For sale9847 Bothwell Rd, Northridge, CA 91324
RA-1 (Suburban Residential) zone, large-lot pedigree. 6BR/7BA / 5,453 sqft estate-class home with serious ADU room — top-end Northridge property.
North Hollywood
For sale8125 Alcove Ave, North Hollywood, CA 91605
R1-1, 8,564 sqft flat lot with existing detached garage. Listing explicitly flags ADU potential — top-volume LA ADU neighborhood.
Featured neighborhoods this week
Browse all →south la
Crenshaw
Historic Black middle-class anchor of South LA. New K Line transit unlock + family-use ADU demand drive steady permit volume.
Zips: 90008 · 90043 · 90016
east la
Boyle Heights
Cultural anchor of Mexican-American LA. Strong transit + relatively affordable lots + active community engagement make for distinct permit context.
Zips: 90033
south la
Park Mesa Heights
Affordable mid-tier home values, Metro K Line transit access, and proximity to Kenneth Hahn State Recreation Area + the Crenshaw cultural corridor drive solid Accessory Dwelling Unit (ADU) economics.
Zips: 90043 · 90047
east la
El Sereno
Affordable LA City East-side home values, Cal State LA employment + student-rental base, and Metro L Line + A Line transit adjacency drive solid Accessory Dwelling Unit (ADU) demand.
Zips: 90032
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