NEWTOWN CONSTRUCTION
License
- Status
- CLEAR
- First issued
- September 22, 1989
- Expires
- September 30, 2027
- Entity
- Sole Owner
- Address of record
- 31 PIEDMONT ROAD, Larkspur, CA 94939
- Phone of record
- (415) 342 7559
Contractor bond
- Surety
- BUSINESS ALLIANCE INSURANCE COMPANY
- Bond number
- G150414587834
- Amount
- $25,000
- Effective
- May 30, 2025
Workers’ compensation
- Carrier
- BENCHMARK INSURANCE COMPANY
- Policy number
- 99WC0000308501
- Effective
- October 1, 2025
- Expires
- October 1, 2026
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 5 licensed general engineering contractors in Larkspur.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| HYNES JOHN KIERAN | Sole Owner | September 22, 1989 | Current |
| HYNES JOHN KIERAN | Sole Owner | May 17, 1999 | Current |
| HYNES JOHN KIERAN | Sole Owner | January 22, 2003 | January 1, 2004 |
Verified status badge
Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.
<a href="https://bookofbuilders.com/license/577810" target="_blank" rel="noopener">
<img src="https://bookofbuilders.com/badge/577810.svg" alt="NEWTOWN CONSTRUCTION — California contractor license #577810 status, verified against CSLB records" width="268" height="76">
</a>The badge shows whatever the CSLB record says — including a suspension or lapsed coverage. There is no paid version and no way to change what it displays. That is what makes it worth showing. The same data as JSON if you’d rather build your own.
Is this your license?
Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.
Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.