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SILVERTHORN CONSTRUCTION INC

General Building Contractor — ALPINE, California

P O BOX 2092 · ALPINE, CA (619) 980 8908
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License expired 07/31/2026 and has not been renewed. If the contractor tells you they've renewed, confirm with the state board before signing a contract. (Retrieved from California; filings after retrieval may not be reflected.) Covers General Building Contractor in ALPINE.

  • Expired 07/31/2026
  • Bonded $25000
  • WC on file
  • No complaints

California state licensing board · retrieved 03/18/2026

Retrieved 03/18/2026 — renewals or status changes filed after this date may not be reflected.

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License #339580 · SILVERTHORN CONSTRUCTION INC

General Building Contractor · ALPINE, CA

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The record

License

Number
339580
Status
active
Issued
07/11/1977
Expires
07/31/2026

Coverage

Contractor bond
$25,000
Bond company
AMERICAN CONTRACTORS INDEMNITY COMPANY
Workers comp
STATE COMPENSATION INSURANCE FUND
Wage bond
$0

Business

County
San Diego

History

Complaints (3 yrs)
0
Disciplinary
None on file
Permits on file
10
Pending actions
None

Licensed to do

  • B — General Building Contractor

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Disciplinary & complaints

No disciplinary actions on file.

Building permits (10)

Source: LA City Open Data (LADBS)

New Residential Acc Structure — 3313 - ACC - Retaining Walls

1671 ALPINE TERRACE RD MAIN, ALPINE, CA 91901

Cross street: ARNOLD Description of Work: 28 LF COUNTY STD RET WALL (MAX HEIGHT 5'; SLOPING BACKFILL) FOR PROPOSED ADU (SEPARATE PERMIT) (ADU RECORD ID PDS2020-RESACC-000131)

2020-07-14

Issued

New Residential Acc Structure — 3281 - RES - Ag. Bldg, Barn Or Accessory Strct.

15228 ISLA VISTA RD, JAMUL, CA 91935

Cross street: Rocky Mountain Rd Foundation: SLAB Description of Work: 440 sq ft ag building, 320 sq ft poolhouse, 80 sq ft sauna, All as built. (There is also a

2012-03-26

Completed

Residential Alteration-Addn — 6450 - RES - Demolition SFD

4240 WILLOWS RD, ALPINE, CA 91901

Cross street: WILLOWSIDE RD Description of Work: SFD DEMOLITION PERMIT -- NOTE: _ IT MAY NOT BE POSSIBLE TO REBUILD. _ The fact that there was an existing structure on your lot does not guarantee t

2011-09-27

Completed

Residential Alteration-Addn — 6450 - RES - Demolition SFD

1216 WILLOWSIDE TER A, ALPINE, CA 91901

Cross street: WILLOWS Description of Work: SFD DEMOLITION PERMIT -- NOTE: _ IT MAY NOT BE POSSIBLE TO REBUILD. _ The fact that there was an existing structure on your lot does not guarantee that yo

2011-09-27

Completed

Residential Alteration-Addn — 8003 - REN - Solar Photovoltaic Residential (HRA)

15228 ISLA VISTA RD, JAMUL, CA 91935

Cross Street: LYONS VALLEY RD Description of Work: ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD TO BE PLACE ON NEW DET. GARAGE (SEE 1006 20100239) NO. OF MODULES: 66 NO. OF INVERTERS: 3 TOTAL S

2010-12-08

Completed

New Residential Acc Structure — 4360 - RES - Garages For SFD/Duplex

15228 ISLA VISTA RD, JAMUL, CA 91935

Cross street: LYONS VALLEY RD Foundation: SLAB Description of Work: 1730 SF DETACHED GARAGE, FIN/FS; ALSO, ELECTRICAL UPGRADE TO 400 AMPS SERVICE FOR SFD. AND 80 SQFT ADD

2010-12-08

Completed

Residential Alteration-Addn — 3310 - RES - Misc. (Antennas, Tennis Cts, Gazebo)

8423 MELROSE LN, EL CAJON, CA 92021

Cross street: ROYAL RD. Description of Work: 550 SQFT PATIO COVER, 300 SQFT COUNTY STANDARD RETAINING WALL (MAX HEIGHT 5'), 124 SQFT (MAX HEIGHT 6') COUNTY STANDARD FREE STANDING ENTRY WALL, MISC. EL

2008-07-08

Completed

Residential Alteration-Addn — 4340 - RES - Addition/Alter To SFD/Duplex

11305 OAK CREEK DR, LAKESIDE, CA 92040

Cross street:MANZANITA RD Description of Work:TO ADD 280 SQ/FT, Removing 84 L/F of Partitions and 32 SQ/FT Windows, for Existing One story SFD.

2007-05-29

Issued Invalid Expired

Residential Alteration-Addn — 4340 - RES - Addition/Alter To SFD/Duplex

13890 DEANLY WAY, LAKESIDE, CA 92040

Cross street:JACK OAK LANE Description of Work:499 SQ FT 1-STORY SFD ADDITION, 52 SQ FT COVERED PORCH (HRA), MISC ELECTRICAL, PLUMBING & MECHANICAL. NEW ADDITION IS NOT TO BE USED AS A SEPARATE UNIT

2005-08-30

Completed

New Primary Residential SFD-MH — 1010 - RES - New Primary Residential Structure

12466 BUENA VIDA RD, LAKESIDE, CA 92040

Cross street:MUTH VLY RD Description of Work: ~CEDAR FIRE STREAMLINE~ 2715 SQ FT SFD W/ BOTH AND 747 SQ FT DET FIN GARAGE AND 600 SQ FT UNCOVD DECK...200 AMPS ELEC SERVICE...VG2073...ETOP 1005-2003-1

2005-02-18

Completed

Status history

Reissued
07/06/2004
Last updated
03/18/2026

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Official record

Source of record: Contractors State License Board (CSLB). Raw record ID: #339580

California state licensing board · retrieved 03/18/2026

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