Farnsworth W Builders
Home addition contractor based in Los Angeles. Licensed since 2010.
- License active
- Workers' comp on file
9 jobs on Los Angeles permits, 2023 to 2026: 4 home additions, 3 remodels, 2 solar installations. 137th most addition permits of 357 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 947797, active in the state's records on Sep 23, 2026General building, electrical, plumbing, roofingNo complaints or citations on the board's public record. | 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 2010 | |
| Jobs on record | 9 jobs on Los Angeles permits, 2023 to 2026: 4 home additions, 3 remodels, 2 solar installations137th most addition permits of 357 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 947797 on CSLB
Cost and timing
All addition jobs in Los Angeles: $38,000 to $120,000
Half of 10,836 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Second-story additions in Los Angeles: $75,000 to $200,000 (858 permits)
- Garage additions in Los Angeles: $48,000 to $110,000 (3,411 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 $75,000 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What addition jobs cost in Los Angeles.
Get 2 or 3 written quotes.
Permit timeline
Across Los Angeles, a addition permit stays open about about 13 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 addition jobs take.
Track record
Jobs per quarter
Where they work most
- 902725 jobs
- 902914 jobs
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 31, 2026 | SolarInstallation of roof-mounted Central/String inverter solar photovoltaic (PV) system interconnected… | 90272 | not stated |
| Jan 27, 2026 | Solar(E-Plan) Fire Damage 2025. PV1 installation of roof mounted solar modules and installation of… | 90272 | not stated |
| Jul 19, 2025 | Addition196 square-foot ground floor den addition and a 72 square-foot | 90272 | $50,000 |
| Dec 24, 2024 | Addition2-story addition (751 sf) and remodel to (e) single story SFD (460 sf) | 90291 | $100,000 |
| Dec 24, 2024 | AdditionInterior and exterior remodel to existing single story sfd with small | 90291 | $5,000 |
| Jul 10, 2024 | AdditionGeneral interior remodel & 28 sf addition to (e) sfd; replace 3-window | 90272 | $100,000 |
| Dec 1, 2023 | RemodelMajor interior remodel and exterior alteration to entire sfd and 2nd floor addition to (e) sfd w/… | 90272 | $275,000 |
| Aug 7, 2023 | RemodelInterior and exterior remodel to existing single story sfd with small kitchen addition per wfpp and… | 90291 | $5,000 |
| Jul 11, 2023 | Remodel2-story addition (751 sf) and remodel to (e) single story SFD (460 sf) and add a roof deck | 90291 | $100,000 |
What to ask before you hire
About Farnsworth W Builders
- Ask what the warranty covers and for how long, in writing.
Worth asking any home addition contractor
- Can you show me proof of liability insurance and your bond?
- Do you handle the plans and engineering, or do I hire them?
- Who will run the job day to day, and who are the subcontractors?
- Who pulls the permits, and what is the payment schedule?
Get a quote from Farnsworth W Builders
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