Updated: Aug 17, 2025
Location and Projects
Address
Ross, CA, 94957
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Hannum Richard C Architect
Hannum Richard C, Ross, CA (Employee: Mr. Roger M. Wong) holds a Architect license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Hannum Richard C, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Hannum Richard C Services
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Hannum Richard C Contact Information
Phone Number: (415) 664-0485
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Hannum Richard C Ross
Quality
94
76th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Hannum Richard C has a BuildZoom score of 94, which places them above 76% of 336,931 contractors in California.
Activity
|
1 project
|
2023 |
Our building permit records indicate that Hannum Richard C has worked on at least
1.0 project 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.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$1mil+ |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Tear of shake roof addition sheathing and replace with class b or better composition shingles at an existing single family dwelling. install listed smoke detectors and carbon monoxide alarms or combination smoke and carbon monoxide detectors/alarms in the existing dwelling
Valuation:
N/A
Permit #:
B-152377
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Single residence
To erect 9 stories 1 basement type 1-b 94 units residential covered multi family dwellings with ground floor restaurant tenant space. (r-2 a-2 a-3) ** maher: n/a **
Valuation:
$30,000,000
Permit #:
201804136335
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
26 - misc group r...
Tenant improvement to existing space includes mechanical, elect, plumbing and sprinklers site location: ground and mezz floors
Valuation:
$650,000
Permit #:
B-2007-0070
Status:
complete
Fee:
$12,669
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/com remodel/repair
2001-08-16
Interior & exterior tenant improvement "hold everything"space #115plan check expired 8/16/02
Valuation:
$980,000
Permit #:
01000-00000-02248
Status:
N/A
Fee:
$8,415
Permit Type:
N/A
Building Type:
N/A
Revision to issued permit # b-2007-0070 remove existing stair from 1st floor to mezzianie level three openings in existing demising wall
Valuation:
$1
Permit #:
B-2008-0039
Status:
complete
Fee:
$552
Permit Type:
N/A
Building Type:
N/A
Fire sprinklers for general administration services
Valuation:
N/A
Permit #:
F1201-011
Status:
final
Fee:
$287
Permit Type:
Fire sprinklers
Building Type:
N/A
Remodel for general administration services
Valuation:
N/A
Permit #:
B0904-047
Status:
final
Fee:
$3,465
Permit Type:
Alter-com
Building Type:
N/A
T i to 2nd and 3rd floors ste 200 & 350
Valuation:
N/A
Permit #:
B0704-048
Status:
final
Fee:
$15,292
Permit Type:
Alter-com
Building Type:
N/A
Eastbourne capital management expansion
Valuation:
N/A
Permit #:
B0203-004
Status:
final
Fee:
$1,345
Permit Type:
Alter-com
Building Type:
N/A
Umb seismic retrofit ada bathroom
Valuation:
$250,000
Permit #:
201212196587
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Construct core bathrooms and corridors at 1st and 2nd floors
Valuation:
N/A
Permit #:
B0707-142
Status:
final
Fee:
$1,814
Permit Type:
Alter-com
Building Type:
N/A
Non load bearing walls/fourth floor
Valuation:
N/A
Permit #:
B0502-094
Status:
final
Fee:
$6,308
Permit Type:
Alter-com
Building Type:
N/A
Construct new office building -- building 2
Valuation:
N/A
Permit #:
B0504-040
Status:
final
Fee:
$95,221
Permit Type:
New commer
Building Type:
N/A
T.i.; east wing 3rd fl ste 360
Valuation:
N/A
Permit #:
B0705-010
Status:
final
Fee:
$4,792
Permit Type:
Alter-com
Building Type:
N/A
Interior tenant improvement for office space
Valuation:
N/A
Permit #:
B0403-090
Status:
final
Fee:
$2,092
Permit Type:
Alter-com
Building Type:
N/A
Tenant improvement. 3rd fl north wing
Valuation:
N/A
Permit #:
B0903-043
Status:
final
Fee:
$5,939
Permit Type:
Alter-com
Building Type:
N/A
Tenant improvement
Valuation:
N/A
Permit #:
B0907-071
Status:
final
Fee:
$4,867
Permit Type:
Alter-com
Building Type:
N/A
Install non-bearing wall to create 2 additional offices
Valuation:
N/A
Permit #:
B0909-089
Status:
final
Fee:
$977
Permit Type:
Alter-com
Building Type:
N/A
Fire alarm for remodel for general administration services
Valuation:
N/A
Permit #:
F1002-013
Status:
final
Fee:
$270
Permit Type:
Fire alarm
Building Type:
N/A
Construct core bathrooms and corridors at 1st and 2nd floors
Valuation:
N/A
Permit #:
E0707-058
Status:
final
Fee:
$67
Permit Type:
Alter-com
Building Type:
N/A
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Hannum Richard C License info
Verified License
| License # | C10207 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Hannum Richard C at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
26
Permits
- Building permit records show that Hannum Richard C has worked on 26 permitted projects.
Hannum Richard C Employees
HC
Hannum Richard C
Owner
MW
Mr. Roger M. Wong