Castillo Construction
ADU builder based in Venice. Licensed since 2011.
- License active
- No workers' comp: the business told the state it has no employees
8 jobs on Los Angeles permits, 2023 to 2026: 3 ADUs, 2 remodels, 2 home additions, 1 roofing job. 189th most ADU permits of 271 contractors in Los Angeles.
What the public records show
From the state's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License 960211, active in the state's records on Sep 23, 2026General buildingNo complaints or citations on the board's public record. | Checks out |
| Workers' comp? | No workers' comp: the business told the state it has no employeesThis covers their crew if someone is hurt. It is not insurance for your home. | Ask them |
| In business? | Licensed since 2011 | |
| Jobs on record | 8 jobs on Los Angeles permits, 2023 to 2026: 3 ADUs, 2 remodels, 2 home additions, 1 roofing jobThey are based in Venice. Work outside Los Angeles is not in these records.189th most ADU permits of 271 licensed contractors in Los Angeles. That counts jobs, not quality.Our Los Angeles permit records cover September 2023 to September 2026. |
Records: the state license board and City of Los Angeles permits.
State license board record
Last checked Oct 4, 2026. This may have changed. Check it on CSLB.
No complaints or citations on the board's public record.
Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 960211 on CSLB
Cost and timing
All ADU jobs in Los Angeles: $35,000 to $120,000
Half of 9,338 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Detached ADUs in Los Angeles: $46,000 to $121,000 (3,485 permits)
- Garage conversions in Los Angeles: $30,000 to $65,000 (3,524 permits)
- Junior ADUs in Los Angeles: $20,000 to $50,000 (768 permits)
How to read this range
Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.
Permit value (not a price)
Their typical permit lists $100,000 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What ADU jobs cost in Los Angeles.
Get 2 or 3 written quotes.
Permit timeline
Across Los Angeles, a ADU permit stays open about about 12 months, from permit to final inspection
This is not how long the crew works at your home: most of it is waiting for the inspection. Ask them how many days the work takes. Waiting for the permit adds about about 4 months. How long ADU jobs take.
Track record
2 jobs in the last 12 months, down from 4 the year before
Where they work most
- 900163 jobs
- 902912 jobs
- 902721 job
- 900661 job
- 900481 job
Jobs by kind of work
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | ZIP | On the permit form |
|---|---|---|---|
| Jun 10, 2026 | RemodelPartial remodel and conversion of the 1-story portion of the house to attached state law accessory… | 90291 | $250,000 |
| Oct 27, 2025 | ADUConvert (e) garage (852 sf) to adu (768 sf) and laundry room (84 sf) p | 90291 | $40,000 |
| Aug 19, 2025 | ADUNew 1-story adu with attached 1 car attached garage adu per | 90016 | $100,000 |
| Jun 30, 2025 | Reroof2025 WILD FIRE PROJECT. (13)Window and (4)door change-out (same size & type) for residential… | 90272 | $22,000 |
| Jun 27, 2025 | AdditionMajor remodel to convert existing duplex to single family dwel | 90016 | $100,000 |
| May 30, 2025 | AdditionAddition to & remodel of (e) single family dwelling | 90066 | $50,000 |
| Jan 11, 2024 | Remodel, 465 sq ftMajor remodel to convert existing duplex to single family dwelling with a 465 sqft addition nfpa… | 90016 | $100,000 |
| Sep 25, 2023 | ADUNEW (ZC: 628 SF) DETACHED ADU (42' X 19'-2") PER LAMC 12.22A.33(c)-(d | 90048 | $250,000 |
What to ask before you hire
About Castillo Construction
- Ask who will do the work. Anyone they pay to work on your home must be covered by workers' comp.
- Ask what the warranty covers and for how long, in writing.
Worth asking any ADU builder
- Can you show me proof of liability insurance and your bond?
- Do you handle the plans, engineering and utility hookups, or do I?
- How long from permit to the final inspection on your last three ADUs?
- What is the payment schedule, and what is extra?
Get a quote from Castillo Construction
Five quick questions. We pass your request to Castillo Construction.
Request for Castillo Construction
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Sent. We have your request.
We pass it to Castillo Construction. Replies usually come within a few days.
Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.
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