Masterworks Construction Company
ADU builder working in San Diego. Licensed since 2001.
- License active
- Workers' comp on file
14 jobs on San Diego permits, 2023 to 2026: 5 ADUs, 5 remodels, 4 home additions. 45th most ADU permits of 105 contractors in San Diego.
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 800242, active in the state's records on Sep 23, 2026General building, flooring, glazingNo disciplinary case on the state's file.We found this license by the business name. No other active license has that name. | Checks out |
| Workers' comp? | Workers' comp policy on file with the stateThis covers their crew if someone is hurt. It is not insurance for your home. | On file |
| In business? | Licensed since 2001 | |
| Jobs on record | 14 jobs on San Diego permits, 2023 to 2026: 5 ADUs, 5 remodels, 4 home additions45th most ADU permits of 105 contractors in San Diego. That counts jobs, not quality.Our San Diego permit records cover October 2021 to September 2026. |
Records: the state license board and City of San Diego permits.
Cost and timing
All ADU jobs in San Diego: $68,000 to $172,000
Half of 1,329 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Detached ADUs in San Diego: $70,000 to $176,000 (789 permits)
- Garage conversions in San Diego: $48,000 to $117,000 (175 permits)
- Junior ADUs in San Diego: $57,000 to $147,000 (94 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 $140,184 (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 San Diego.
Get 2 or 3 written quotes.
Track record
5 jobs in the last 12 months, up from 2 the year before
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 | On the permit form |
|---|---|---|
| Mar 9, 2026 | ADU**09/11/2025 Scope Clarification** CLAIREMONT MESA; Combination Building permit for a new detached… | $362,419 |
| Feb 9, 2026 | ADUADU TORREY PINES: Combination building permit for a proposed attached additions to an existing SDU.… | $77,624 |
| Dec 2, 2025 | Remodel | $81,590 |
| Dec 2, 2025 | Addition | $81,590 |
| Dec 2, 2025 | ADU | $81,590 |
| Aug 6, 2025 | ADUADU LA JOLLA: Combination Building Permit for an attached garage conversation into an ADU to an… | $171,965 |
| Nov 3, 2024 | ADUADU PACIFIC BEACH. Combination building permit for a proposed 2-story ADU attached to an existing… | $140,184 |
| Jul 29, 2024 | RemodelLA JOLLA: Combination Building Permit for addition/remodel to an existing SDU. Work to include:… | $219,990 |
| Jul 29, 2024 | AdditionLA JOLLA: Combination Building Permit for addition/remodel to an existing SDU. Work to include:… | $219,990 |
| Mar 15, 2024 | RemodelLA JOLLA; Combination building permit for additions and remodeling work to both floors of an (E)… | $322,836 |
| Mar 15, 2024 | AdditionLA JOLLA; Combination building permit for additions and remodeling work to both floors of an (E)… | $322,836 |
| Dec 7, 2023 | RemodelLA JOLLA. Combination building permit for a proposed remodel/addition to the existing SDU. Scope of… | $160,072 |
| Dec 7, 2023 | AdditionLA JOLLA. Combination building permit for a proposed remodel/addition to the existing SDU. Scope of… | $160,072 |
| Mar 4, 2023 | RemodelMISSION BEACH: Combination Building Permit | $74,976 |
What to ask before you hire
About Masterworks Construction Company
- 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 Masterworks Construction Company
Five quick questions. We pass your request to Masterworks Construction Company.
Request for Masterworks Construction Company
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We pass it to Masterworks Construction Company. 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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See all 105 ADU builders in San Diego, ranked by jobs
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