Updated: Jun 21, 2025
Location and Projects
Address
2411 CARLMONT DRIVE #108, Belmont, CA, 94002
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Mahar William R Jr Architect
Mahar William R Jr, 2411 Carlmont Dr, Belmont, CA (Employees: William R Mahar and William R. Mahar) holds a Architect license and 1 other license according to the California license board.
Their BuildZoom score of 91 ranks in the top 37% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mahar William R Jr, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mahar William R Jr Services
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Mahar William R Jr Contact Information
Phone Number: (650) 610-0855
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Address: 2411 CARLMONT DRIVE #108, Belmont, CA 94002
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This is a sample of this contractor's permits. Click here to access their complete permit history.
In response to inf2017-00091 and letter from mr. miles hancock dated 01/04/2018 - restore bathroom # 1 to ada requirements including grab bars spacing accessories and signage. - new handrail extensions to stair 2 & 3. install backflow preventer at domestic water supply
Valuation:
N/A
Permit #:
BLD2018-00235
Status:
final
Fee:
$571
Permit Type:
N/A
Building Type:
N/A
209 sf rear addition to lowr level replace second and third level rear decks addition of roof penthouse stair enclosure of 147 sf front balcony addition of 33 sf roof deck remodel of 410 sf new mechanical systems new electrical and new plumbing see more detailed scope of work indicated on a0.0
Valuation:
$200,000
Permit #:
201304195007
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Building new 388sfcmu fire pump house at side of front building to include mechanical exh system; elect panel circuits and sound insulation
Valuation:
$172,750
Permit #:
B15-1033
Status:
final
Fee:
$6,437
Permit Type:
N/A
Building Type:
N/A
Building new 388sfcmu fire pump house at side of front building to include mechanical exh system; elect panel circuits and sound insulation
Valuation:
N/A
Permit #:
B16-0101
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
First floor addition ( 474 sf ) and remodel. second floor a
Valuation:
$175,000
Permit #:
BLD2000-01065
Status:
FINALED
Fee:
$2,534
Permit Type:
Residential addition
Building Type:
N/A
Building new corridor for equity office properties
Valuation:
$82,000
Permit #:
202-0489
Status:
final
Fee:
$1,567
Permit Type:
Alteration
Building Type:
N/A
Tenant improvment relocate lights reels dupplies ducts
Valuation:
$20,000
Permit #:
201-1728
Status:
final
Fee:
$579
Permit Type:
Alteration
Building Type:
N/A
Building new deck and addition sliding glass door to deck
Valuation:
N/A
Permit #:
BLD92-1164
Status:
final
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
See description
Valuation:
$7,500
Permit #:
97-1053
Status:
N/A
Fee:
$276
Permit Type:
Alteration
Building Type:
N/A
No Description Available
Valuation:
$2,760
Permit #:
9705-006
Status:
FINALED
Fee:
$235
Permit Type:
Commercial
Building Type:
N/A
Repair residence fire damage
Valuation:
N/A
Permit #:
21631
Status:
f
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition deck at rear (104 sq. ft.) extend kitchen to front (42 sq. ft.) addition bathroom at interior at 1st floor addition bathroom to northside at 2nd floor redo stairwell change flat roof to tiled hip roof match existing (horizontal addition)
Valuation:
$99,000
Permit #:
200607065788
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Building new 388sfcmu fire pump house at side of front building to include mechanical exh system; elect panel circuits and sound insulation
Valuation:
N/A
Permit #:
B16-0102
Status:
canceled
Fee:
$685
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Mahar William R Jr License info
Verified License
| License # | C7912 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of June 2025.
Verify this license's status for Mahar William R Jr at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | C-7912 |
| Status | Active |
| City | San Carlos |
| Type | Architect |
- BuildZoom has not verified this license since July, 2015.
Verify this license's status for Mahar William R Jr at the The City of San Carlos, CA.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
9
Permits
- Building permit records show that Mahar William R Jr has worked on 9 permitted projects.
Mahar William R Jr Employees
MJ
Mahar William R Jr
Owner
WM
William R Mahar
Owner
WM
William R. Mahar