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Area guide: Adu Greater Valley Glen Los Angeles

ADUs in Greater Valley Glen, Los Angeles: Permit Data.

856 ADU permits issued in Greater Valley Glen since 2020, ranked 9th of 236 LA council areas, with costs, sizes and timelines by ADU type.

Photo: This Old House - Los Angeles House Project by Charles & Hudson, CC BY-SA 2.0, via Openverse (flickr).

Last reviewed 1 source 3 min read

Greater Valley Glen neighborhood council area has had 856 ADU permits issued since 2020, which puts it 9th among the 236 council areas in our data. It sits in Council District 2.

Permits per year

Year2020202120222023202420252026*
Permits issued7011816616214513659

Issuance climbed from 70 in 2020 to a peak of 166 in 2022, then settled between 136 and 162 a year. The 2026 count of 59 covers only part of the year.

By ADU type

Kind of ADUPermits issuedMedian square feetMedian declared amountMedian declared $/sq ftDays to get permitDays from permit to CofO
New detached or new construction174928$121,000$112190427
Garage or space conversion535544$50,000$89127366
JADU114364$35,000$8970315
All ADU permits856593$55,000$100130379

What the mix tells you

Conversions are the bulk of the activity here: 535 of 856 permits, or about 63 percent. If you are weighing a garage conversion against a detached build or a JADU, the guide on ADU, JADU and garage conversion differences lays out the trade-offs. New construction accounts for 174 permits (about 20 percent) and JADUs for 114 (about 13 percent)..

New builds declared a median of $121,000 for 928 square feet, about $112 per square foot. Conversions declared $50,000 for 544 square feet, about $89 per square foot. All permits here are processed by LADBS; the walk-through is in the LA ADU permit process. The data lists a 0 percent hillside share for this area, though if your lot is sloped or in a mapped hazard area, read ADUs in fire hazard zones first.

Against the citywide medians

Measured against Los Angeles overall, the all-permit medians are $60,000 declared, 558 square feet and $105 per square foot, with 154 days to issue and 368 more to CofO. By type the city shows $120,000 and 813 square feet for new builds, $50,000 and 496 for conversions, $35,000 and 400 for JADUs.

In Greater Valley Glen the overall median declared valuation is $55,000, against $60,000 citywide. The median permit here takes 130 days to issue, 24 days quicker than the citywide 154, and 379 days from issue to CofO, 11 more than the citywide 368. New construction took 190 days to permit against 213 citywide, and JADUs 70 days against 89.

Of the 856 permits, 591 have reached a certificate of occupancy, about 69 percent. Recent permits have had less time to get there. Citywide, 26,170 of 41,450 permits (about 63 percent) have a CofO on record.

Where to go from here

Dollar details are on the ADU costs page for Los Angeles. Calendar details are in the ADU timeline explainer. If you are about to request bids, read how to hire an ADU builder and verify the CSLB license beforehand.

Source and method

Data source: Los Angeles Department of Building and Safety, "Building Permits Issued 2020 to Present", published at data.lacity.org as dataset pi9x-tg5x and limited to the City of Los Angeles. Our analysis, November 2026.

Quick method summary. We treated a record as an ADU permit when its ADU flags or its description said so, and we dropped supplemental permits. Declared valuation is the amount on the application and tends to leave out design, fees, utilities and finishes. Time medians cover only permits that got to the step in question. 2026 is incomplete.

Sources

  1. LADBS Building Permits Issued 2020 to Present (data.lacity.org)

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