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Location and Projects

Address
775 E Blithedale Ave, Mill Valley, CA, 94941
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J Colin Warner Construction

J Colin Warner Construction, 775 E Blithedale Ave, Mill Valley, CA (Owned by: John Colin Warner) holds a B General Building license and 4 other licenses according to the Nevada license board.

Their BuildZoom score of 103 ranks in the top 10% of 336,931 California licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring J Colin Warner Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.

J Colin Warner Construction Contact Information

Phone: (415) 388-1229
Address: 775 E Blithedale Ave, Mill Valley, CA 94941

J Colin Warner Construction Mill Valley

Quality

103
90th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
J Colin Warner Construction has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.

Activity

1 project
 2025
1 project
 2024
1 project
 2023
Our building permit records indicate that J Colin Warner Construction has worked on at least 3.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Pricing

1 project
 < $5k
1 project
 $20k-$50k
1 project
 $100k-$250k
Value Not Public: 1.0 project
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Building Permits by J Colin Warner Construction

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Commercial/industrial
2589 Samaritan Dr, San Jose, CA, 95124
2023-05-04
Scope of work: oshpd-3/hcai-3 project. equipment replacement in existing mammography room on 2nd floor of sbcc (south bay cancer center). modifications to existing electrical routing to accommodate equipment. replace flooring and repaint walls. no change to fire existing fire alarm or sprinkler no change to existing hvac or plumbing
Valuation:
$118,000
Permit #:
2023 091658 CI
Status:
final
Fee:
$3,477
Permit Type:
Medical/dental cl...
Building Type:
N/A
Building/commercial/t/tenant improvement
3000 Oak Rd, Walnut Creek, CA, 94597
2022-10-03
Tenant improvement. demolish portion of ste 100. 1, 453 sf. remove lead shielding selected walls and plumbing fixtures. demolish lead lined ceiling in pet ct scan room (416 sf) and replace with new t-bar grid ceiling. remove partition walls around the pet ct room remove existing bathroom and nurse station and dividing partition walls. remove lead drywall and replace with regular drywa... see more
Valuation:
$115,000
Permit #:
BIT22-011143
Status:
final
Fee:
$3,666
Permit Type:
N/A
Building Type:
N/A
Permit submittal
3000 Oak Rd, Walnut Creek, CA, 94597
2022-09-15
Tenant improvement. demolish portion of ste 100. 1, 453 sf. remove lead shielding selected walls and plumbing fixtures. demolish lead lined ceiling in pet ct scan room (416 sf) and replace with new t-bar grid ceiling. remove partition walls around the pet ct room remove existing bathroom and nurse station and dividing partition walls. remove lead drywall and replace with regular drywa... see more
Valuation:
$115,000
Permit #:
BISUB22-03297
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building
149 6th Ave, San Francisco, CA, 94118
2024-07-10
Rot repair to front entry stairs repair (e) railing replace 2 posts replace trims on posts replace some decking material as needed. replace 3 stair treads (e) bricks steps to remain paint all repairs and paint facade as needed less than 50 percent repair/relacement
Valuation:
$35,000
Permit #:
202206236972
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Commercial
600 Gateway Blvd, South San Francisco, CA, 94080
2022-09-20
Expansion of lobby into tenant improvement
Valuation:
$227,000
Permit #:
REV21-0286
Status:
issued
Fee:
$10,075
Permit Type:
Tenant improvement
Building Type:
N/A
Commercial alteration
5725 W Las Positas Blvd, Pleasanton, CA, 94588
2021-05-26
Tenant improvement stanford health care - remodel existing medical office space to accommodate x-ray equipment and dressing rooms
Valuation:
$100,000
Permit #:
B21-1140
Status:
final
Fee:
$4,146
Permit Type:
N/A
Building Type:
N/A
Fire sprinkler
5725 W Las Positas Blvd, Pleasanton, CA, 94588
2021-07-13
Tenant improvement stanford health care x-ray equipment room - relocated (4) addition (2) and demolish (1) existing pendent sprinkler
Valuation:
$5,000
Permit #:
F21-0116
Status:
final
Fee:
$595
Permit Type:
N/A
Building Type:
N/A
Building
149 6th Ave, San Francisco, CA, 94118
2024-07-10
Revision to original permit # 202206236972: change bottom 4 stair treads and risers from brick to wood
Valuation:
$1,000
Permit #:
202406204896
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Commercial alteration tenant improvement
4000 Dublin Blvd, Dublin, CA, 94568
2018-02-22
Remodel of existing x-ray room to accommodate new x-ray agfa health care system valley care (suite 150)
Valuation:
$138,109
Permit #:
BLDG-2016-03066
Status:
final
Fee:
$4,738
Permit Type:
N/A
Building Type:
N/A
Residential remodel
37 Locust Ave, Larkspur, CA, 94939
2025-05-15
Whole house siding bathroom remodel
Valuation:
N/A
Permit #:
BD2312-0007
Status:
final
Fee:
$5,929
Permit Type:
Without structural
Building Type:
N/A
Building residential
170 Rancho Dr, Belvedere Tiburon, CA, 94920
2019-10-05
Remove rotted siding and extension. trim
Valuation:
$120,000
Permit #:
BR18-111
Status:
final
Fee:
$4,326
Permit Type:
Construction only
Building Type:
N/A
Commercial
600 Gateway Blvd, South San Francisco, CA, 94080
2021-09-24
Chiller mods
Valuation:
N/A
Permit #:
REV21-0261
Status:
issued
Fee:
$552
Permit Type:
Tenant improvement
Building Type:
N/A
Residential
91 Longfellow Rd, Mill Valley, CA, 94941
2017-12-21
Landscape work: retaining walls and spa
Valuation:
N/A
Permit #:
288041
Status:
final
Fee:
N/A
Permit Type:
Site work
Building Type:
N/A
Building residential
10 Baccharis Pl, Belvedere Tiburon, CA, 94920
2016-01-27
Repl siding repair decks
Valuation:
$100,000
Permit #:
BPA13-790
Status:
final
Fee:
N/A
Permit Type:
Construction only
Building Type:
N/A
Building residential
10 Baccharis Pl, Belvedere Tiburon, CA, 94920
2016-01-27
Drive way deck repair
Valuation:
$50,000
Permit #:
BPA13-675
Status:
final
Fee:
N/A
Permit Type:
Construction only
Building Type:
N/A
New medical office building
1000 Nut Tree Rd, Vacaville, CA, 95687
2017-05-19
Vaca valley hospital mri building: modular w all trades
Valuation:
$500,000
Permit #:
1607-0168
Status:
final
Fee:
$28,563
Permit Type:
Non-residential
Building Type:
N/A
Building
1 Shrader St, San Francisco, CA, 94117
2016-02-01
Remodel existing room in imaging center to restor radiology room. install new radiology equipment
Valuation:
$75,000
Permit #:
201507212049
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
67 - clinics-medi...
Building
1 Shrader St, San Francisco, CA, 94117
2016-02-01
Correction to ada agreement on permit #201507212049. clarify d.a. checklist - relocate sink under 20% rule not for restroom upgrade
Valuation:
$1
Permit #:
201510200241
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
67 - clinics-medi...
Building
1580 Valencia St, San Francisco, CA, 94110
2017-08-10
4th floor - remodel existing radiology rooms for new radiology room & control room
Valuation:
$190,000
Permit #:
201604225529
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Building/building/building permit - c/addition
155 Glasson Way, Grass Valley, CA, 95945
2006-08-07
Addition of 530 sq ft to existing radiation oncology building and interior remodel of 1009 sq ft
Valuation:
$457,248
Permit #:
06BLD-0085
Status:
final
Fee:
$3,636
Permit Type:
N/A
Building Type:
N/A

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