Isaiah Paul Alva Construction
ADU builder working in Sacramento.
- No license matched this business by name in the state's records
4 jobs on Sacramento permits, 2023 to 2026: 3 ADUs, 1 home addition. 36th most ADU permits of 47 contractors in Sacramento.
What the public records show
From the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | No license matched this business by name in the state's records | Ask them |
| Jobs on record | 4 jobs on Sacramento permits, 2023 to 2026: 3 ADUs, 1 home addition36th most ADU permits of 47 contractors in Sacramento. That counts jobs, not quality.Our Sacramento permit records cover September 2021 to August 2026. |
Records: City of Sacramento permits.
Cost and timing
All ADU jobs in Sacramento: $93,000 to $187,000
Half of 695 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Detached ADUs in Sacramento: $100,000 to $190,000 (253 permits)
- Garage conversions in Sacramento: $50,000 to $120,000 (70 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 $140,000 (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 Sacramento.
Get 2 or 3 written quotes.
Track record
Where they work most
- 958162 jobs
- 958181 job
- 958191 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 |
|---|---|---|---|
| Aug 18, 2026 | ADUEPC - Permitting a previously unpermitted 628 square foot ADU, 1BED/1BATH in Compliance with AB… | 95818 | $63,528 |
| Nov 12, 2025 | ADU, 499 sq ftEPC - Construction of new 1 bed, 1 bath 499 sq ft ADU with 6 sq ft water heater enclosure | 95819 | $140,000 |
| Apr 27, 2023 | AdditionEPC - New detached ADU With 531Sf of conditioned space, and 89Sf unconditioned storage space | 95816 | $152,000 |
| Apr 27, 2023 | ADUEPC - New detached ADU With 531Sf of conditioned space, and 89Sf unconditioned storage space | 95816 | $152,000 |
What to ask before you hire
About Isaiah Paul Alva Construction
- Ask for the license number and check it with the state.
- Ask what the warranty covers and for how long, in writing.
- Search their name on the Better Business Bureau site, and read their reviews.
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 Isaiah Paul Alva Construction
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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 near 95816 and 95818
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See all 47 ADU builders in Sacramento, ranked by jobs
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