Ritz Design Build
ADU builder working in San Diego. Licensed since 1965.
- License active
- Workers' comp on file
12 jobs on San Diego permits, 2022 to 2026: 8 ADUs, 2 remodels, 2 home additions. 25th 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 239311, active in the state's records on Sep 23, 2026General buildingNo 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 1965 | |
| Jobs on record | 12 jobs on San Diego permits, 2022 to 2026: 8 ADUs, 2 remodels, 2 home additions25th 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 $116,982 (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
Jobs per quarter
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 |
|---|---|---|
| Jan 9, 2026 | ADUADU MID-CITY:CITY HEIGHTS, Combination building permit to proposed (N) 2-story ADU attached to… | $212,850 |
| Jan 30, 2025 | ADUADU **Scope Change (12/19/2023) **LINDA VISTA: Combination Building Permit for the proposed… | $145,798 |
| Dec 12, 2024 | ADUADU ***SCOPE CLARIFICATION 10/29/24***SOUTHEASTERN SAN DIEGO: Combination Building Permit to… | $122,430 |
| Jun 12, 2024 | ADUADU PENINSULA : Combination Building Permit for a New single story detached ADU | $100,050 |
| May 21, 2024 | ADUADU RANCHO PENASQUITOS: Combination Building Permit for a proposed attached single-story ADU to an… | $116,157 |
| Jan 29, 2024 | ADUADU CLAIREMONT MESA; Combination Building Permit for a proposed one-story detached ADU accessory to… | $108,377 |
| Mar 9, 2023 | ADUCLAIREMONT MESA: Combination permit for a new detached ADU 2 bedrooms and 2 baths | $117,807 |
| Feb 10, 2023 | RemodelNAVAJO; Combination remodel for addition and remodel to an existing 2-story SFD. Work include… | $59,903 |
| Feb 10, 2023 | AdditionNAVAJO; Combination remodel for addition and remodel to an existing 2-story SFD. Work include… | $59,903 |
| Jun 30, 2022 | RemodelRANCHO PENASQUITOS: Combination permit for addition/remodel at existing SDU. work to include demo… | $29,145 |
| Jun 30, 2022 | AdditionRANCHO PENASQUITOS: Combination permit for addition/remodel at existing SDU. work to include demo… | $29,145 |
| Apr 12, 2022 | ADUADU RANCHO PENASOUITOS -Combination building permit for construction new 2 story accessory dwelling… | $86,334 |
What to ask before you hire
About Ritz Design Build
- 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 Ritz Design Build
Five quick questions. We pass your request to Ritz Design Build.
Request for Ritz Design Build
- Where
- Job
- Start
- Budget
- Goes to
You decide who to hire. Your details go only to the contractors you pick. How we use your details
Sent. We have your request.
We pass it to Ritz Design Build. 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.
Open your job roomMore ADU builders
- Elements Design and Build
- Crown Pacific Construction
- Waypoint Construction
- Waypoint Partners
- Calspec General Contractors Inc.
- New California Restoration
See all 105 ADU builders in San Diego, ranked by jobs
Run this business? Claim this page to get requests by email and reply to homeowners here.