Carbon Zero Buildings Inc
Report verdict
Licensed & active (expires 2028-11-30) · No board discipline flag found in covered sources · 11 permits on file
88/100 HomeProFax Score — public-record factors only, not a rating of workmanship. How the score works Full report
The state board is the authority. A flag is a prompt to read the board record, not a verdict. Verify license status with the issuing board before you hire. See methodology and disclaimer & corrections.
What this report checks
Score breakdown
| Factor | Points | Why |
|---|---|---|
| License status | 35/35 | Active license on file with a state board |
| Discipline & legal flags | 20/20 | No disciplinary flag on board record |
| Permit history | 20/20 | 11 permits on file |
| Reviews (BBB + HomeProFax) | 13/25 | No BBB rating on file and no approved HomeProFax reviews yet (neutral). External ratings are linked below, not stored |
A simple, transparent sum of public-record factors. How the score works. Not a rating of workmanship.
Source data as of: Report rebuilt from source files on 2026-10-19 · CSLB bond/workers' comp as of 2026-10-14 · most recent permit on file: 2025-12-03.
What we checked
| License | Checked | CA Corporation #1098901 · active |
| Bond | Checked | $25,000 with WESTERN SURETY COMPANY · as of 2026-10-14 |
| Workers' comp | Checked | Workers' Compensation Insurance (STATE COMPENSATION INSURANCE FUND) · as of 2026-10-14 |
| Years licensed | Checked | Licensed since 2022 |
| Business registration | Not available in CA | State business registry not loaded yet |
| Permits | Checked | 11 permits on record |
| Discipline | Checked | none on record |
| OSHA | Not checked yet | OSHA records not checked yet |
| Reviews & outside links | Not checked yet | No review lookup run yet |
| Contractor-provided | Not checked yet | Nothing provided by the contractor yet |
Public records as of their source dates. Board status is shown as reported by the board. Not a guarantee. Ask the contractor for their verified HomeProFax report.
Licenses
Licensed since 2022 (earliest original issue date on these state license records; not a business start date)
| License # | Type | Status | Issued | Expires | Source |
|---|---|---|---|---|---|
| CA 1098901 | Corporation (B) Workers' comp: Workers' Compensation Insurance (STATE COMPENSATION INSURANCE FUND); Contractor bond: $25000 (WESTERN SURETY COMPANY) | clear | 2022-11-21 | 2028-11-30 | State board |
Bond & workers' comp
| Contractor bond | $25,000 · WESTERN SURETY COMPANY · effective 2023-01-01 |
|---|---|
| Workers' comp | Workers' Compensation Insurance · STATE COMPENSATION INSURANCE FUND · effective 2023-01-26 · expires 2027-01-26 |
Source: CSLB Public Data Portal (License Master), as of 2026-10-14. Verify current bond and insurance with CSLB and the insurer before you hire.
Building permits
| Date | Permit | Type | Address | Value |
|---|---|---|---|---|
| 2025-12-03 | 202512030878 | otc alterations permit | 881 Turk St | $1 |
| 2025-11-20 | 202511038733 | otc alterations permit | 333 Baker St | $1 |
| 2025-07-01 | 202506068146 | otc alterations permit | 333 Baker St | $175,000 |
| 2025-06-06 | 202505307581 | otc alterations permit | 1180 04th St | $200,000 |
| 2025-04-01 | 202503273157 | otc alterations permit | 54 Mcallister St | $1 |
| 2025-03-26 | 202503071820 | otc alterations permit | 879 Turk St | $5,000 |
| 2025-01-29 | 202501108130 | otc alterations permit | 54 Mcallister St | $125,000 |
| 2024-12-06 | 202410283888 | otc alterations permit | 347 Dolores St | $150,000 |
| 2024-12-06 | 202410183281 | otc alterations permit | 879 Turk St | $300,000 |
| 2023-10-03 | 202310027841 | otc alterations permit | 118 Diamond St | $55,776 |
| 2023-10-03 | 202310027842 | otc alterations permit | 926 Fillmore St | $44,516 |
Source: DataSF (Building Permits + Building Permits Contacts)
Source: DataSF, City and County of San Francisco (Building Permits; Building Permits Contacts).
Discipline, complaints & legal
No board discipline or complaints found in our current sources. Federal court search (CourtListener): no state-consistent possible match in our last sample run, or not yet run for this contractor.
Around the web
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Reviews
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Homeowner reviews on HomeProFax
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Carbon Zero Buildings Inc · General Building Contractor
Lafayette, CA
License on file: CA 10••••8901
Sources for this report
- CA license board
- DataSF (Building Permits + Building Permits Contacts)
See something wrong? Request a correction. This report is compiled from public records and is not a consumer report.
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