R & D CONSTRUCTION CO INC
License
- Status
- CLEAR
- First issued
- October 3, 2003
- Reissued
- January 8, 2013
- Expires
- January 31, 2027
- Entity
- Corporation
- Address of record
- 224 ELMIRA STREET, San Francisco, CA 94124
- Phone of record
- (415) 710 3828
Contractor bond
- Surety
- NORTH RIVER INSURANCE COMPANY (THE)
- Bond number
- 04CF613419
- Amount
- $25,000
- Effective
- January 8, 2023
Workers’ compensation
- Carrier
- STATE COMPENSATION INSURANCE FUND
- Policy number
- 9059116
- Effective
- June 4, 2013
- Expires
- June 4, 2027
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 422 licensed plumbing contractors in San Francisco.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| CAO DAVID DE ZHENG | Responsible Managing Officer/Chief Executive Officer/President | January 8, 2013 | Current |
| CAO DAVID DE ZHENG | Sole Owner | October 3, 2003 | January 1, 2004 |
| CAO DAVID DE ZHENG | Sole Owner | October 3, 2003 | January 8, 2013 |
| CAO DAVID DE ZHENG | Sole Owner | May 12, 2008 | January 8, 2013 |
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/825438" target="_blank" rel="noopener">
<img src="https://bookofbuilders.com/badge/825438.svg" alt="R & D CONSTRUCTION CO INC — California contractor license #825438 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.