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ADU Market Data

ADUs in West Hills (91307)

504 ADU building permits have been issued in ZIP 91307 since 2020, from Los Angeles City permit records refreshed weekly. Here is what your neighbors actually built, and how long it took.

504

ADU building permits issued since 2020

87 / 417

new builds / conversions and additions

3 mo

median time from application to permit

989 sq ft

median new-build ADU size

$120,000

median declared valuation, new builds

Permits issued by year

2020
62
2021
72
2022
98
2023
61
2024
69
2025
91
2026
51

The current year shows permits issued so far, not a full-year total.

Thinking about joining them?

Start where your neighbors should have: find out what your own lot allows, then build a budget with rental return. Both free, both about 2 minutes.

Source: Los Angeles City Building & Safety permit records via the city's open data portal, refreshed weekly. Counts are building permits flagged as adding or changing an ADU (new construction, garage conversions, and additions) issued in ZIP 91307 from 2020 to present. Median time from application to permit covers the same permits. Valuations are the declared construction value on the permit, which typically runs below real-world project cost.