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License is active

Source: Contractors State License Board (CSLB)

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Licensed

Current and in good standing

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Bonded

$25,000 surety bond

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Insured

Workers' comp coverage on file

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Clean record

No complaints or disciplinary actions

California licensing requirements →

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MASTER BUILDERS

DBA: S F TWIN BOYS CORPORATION

License Number: 850407
State: California
Status: active
Business Type: Corporation
Address: 3 STARK STREET SAN FRANCISCO, CA, 94133 San Francisco County
Phone: (650) 872 8028

License Dates

Issued

11/30/2004

Expires

11/30/2026

Expires in 8 months

CSLB Last Updated

09/02/2025

License Classifications

A| B A| B

Personnel & Officers

ISKANDAR PETER IMAM

Responsible Managing Officer/Chief Executive Officer/President

Active

LEUNG CURTIS PARK

Responsible Managing Employee

Former

Qualifier bond: AMERICAN CONTRACTORS INDEMNITY COMPANY

DARMANI FAY ASTRI

Officer

Former

Contractor Bond

Bonded

Amount: $25,000

Company: AMERICAN CONTRACTORS INDEMNITY COMPANY

Bond #100792371

Effective: 08/25/2023

Workers' Compensation

Has policy

Carrier: SECURITY NATIONAL INSURANCE COMPANY

Policy #SWC1558457

Effective: 06/23/2025

Expires: 06/23/2026

CSLB designation: Workers' Compensation Insurance

Complaints & Disciplinary History

No disciplinary actions on file

This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.

Building Permits

Source: LA City Open Data (LADBS)

additions alterations or repairs

531 Greenwich St, 94133

voluntary seismic upgrade soft story per ordinance no.54-10 and administrative bulletin ab-094.

$35,000

cancelled

otc alterations permit

1763 Stockton St, 94133

reconfigure interior walls of bedroom, living rm, kitchen , bathrooms for all units. remodel kitchens and bathrooms. no exterior work.

$50,000

cancelled

additions alterations or repairs

1832 Mason St, 94133

rear-bldg - remodel kitchens and bathrooms, replace all windows w casement, replace reoof joists with tji's, remove e roof to restore e deck, relocate unit 1832 to basement, expand unit 1832a to 1st f

$60,000

withdrawn

additions alterations or repairs

642 Lombard St, 94133

rear bldg - add 1 residential unit @ rear building w/in density unit; relocate 1 residential unit from front building to rear building (front bldg modification is under separate permit); remodel kitch

$80,000

withdrawn

otc alterations permit

460 Vallejo St, 94133

abatement of nov 202286188: provide more details for items listed in complaints ref permits pa 201512165310, 201609147636, 201707121727 and 201808217874

$20,000

filed

additions alterations or repairs

460 Vallejo St, 94133

admin permit for dcp review only. for planning review continuity between revisions previously approved by planning dpt under pa 2015-1216-5310, 2017-0712-1727 and as built approved by dbi under 2018-0

filed

additions alterations or repairs

1485 Clay St, 94109

add 3 accessory dwelling units (1 bedroom & 1 bath each) per ordinance# 162-16. remodel existing laundromat

$400,000

cancelled

otc alterations permit

352 Chestnut St, 94133

replace windows at front and rear facades. replace garage doors. add wood and metal cladding to window bays. add built-in bbq at existing roof deck.

withdrawn

otc alterations permit

15 Kramer Pl, 94133

add 1/2 bath to (e) garage

$5,000

withdrawn

otc alterations permit

348 Chestnut St, 94133

1st flr: convert (e) kitchen to masterbedroom w/full bath. relocate kitchen to living room. relocate half bath and narrow (e) interior stair from 45" to 36" & build counter above. lower flr: add full

$128,888

2026-03-10

issued

Showing 10 of 196 permits

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Data sourced from official state licensing board records. Always confirm critical information directly with the state board.