Updated: Apr 12, 2026
Location and Projects
Address
1042 LAS PAVADAS AVE, San Rafael, CA, 94903
Use our bidding system to
request a quote
C A Duffy Construction
Founded by Chris Duffy, C A Duffy Construction operates out of San Rafael, California, serving residential clients throughout Marin County. This contractor specializes in custom home construction, renovations, and remodels, with project experience ranging from kitchen and bathroom upgrades to expansive full-home transformations. C A Duffy Construction manages projects for single-family homes, collaborating closely with homeowners, architects, and designers. The company’s portfolio includes structural work, interior and exterior updates, and the integration of high-quality materials suited to each unique project. Chris Duffy maintains an active, on-site role throughout each phase of construction. With over two decades of experience, C A Duffy Construction is known for delivering homes designed to fit the specific needs and vision of Bay Area clients.
C A Duffy Construction Services
Start a project today:
C A Duffy Construction Contact Information
Phone Number: (415) 497-0353
Edit
Address: 1042 LAS PAVADAS AVE, San Rafael, CA 94903
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
C A Duffy Construction San Rafael
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
C A Duffy Construction has a BuildZoom score of 106, which places them above 93% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that C A Duffy Construction has worked on at least
8.0 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.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
2 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
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.
C A Duffy Construction Reviews
5 out of 5 stars, based on
1
review
-
By Mary S.February 2, 2017Verified Hire
Building Permits by C A Duffy Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
At basement create habitable space including a media room full bathroom mechanical room and a new stair from the 1/f. on level 1 remodel the kitchen remove a full bathroom and create a half bathroom. new laundry room at level 2. new windows/doors
Valuation:
$250,000
Permit #:
202106253254
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1 375 sf remodel of main house; 210 sf garage
Valuation:
N/A
Permit #:
BD2411-016
Status:
issued
Fee:
$5,468
Permit Type:
Remodel
Building Type:
N/A
To obtain final inspection for work approved under: renew permit 201109235392 all work is complete. renew permit 201209069125 all work is complete. renew permit 201308225027 all work is complete
Valuation:
$1
Permit #:
202501218702
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Interior remodeling at the first and second floors including kitchen and bathrooms. plumbing mechanical and electrical work. excavation of the existing basement excavation to create habitable space. additional floor area 1, 504 sf
Valuation:
$345,000
Permit #:
B2021-00261
Status:
issued
Fee:
$17,857
Permit Type:
N/A
Building Type:
N/A
Revision: convert 908 sf of basement and crawlspace to habitable space. addition new openings to front and side elevations establish uncovered off-street parking space as approved by zab under zp2019-0196. residential remodel: convert (e) basement to create 908 sf of habitable space and repair (e) foundation
Valuation:
$215,000
Permit #:
B2019-03118
Status:
final
Fee:
$12,020
Permit Type:
N/A
Building Type:
N/A
Upper floor addition of 544 s f and enclosed 96 s.f of attached deck for a total of 640sq ft. (master suite) enclosed rear deck as new stairs fau remodel bathrooms upgrade windows heating and hot water systems. must comply with fire zone 2 requirements **add electrical to upgrade main service panel from 100 amps to 200 amps revion02: revision to install ductless mini-spit heat pump sy... see more
Valuation:
$209,574
Permit #:
B2019-02206
Status:
final
Fee:
$11,394
Permit Type:
N/A
Building Type:
N/A
To construct a 647 sq. ft. 2nd story addition at rear of existing split-level single family dwelling. remodel and expansion of dining room and kitchen on main floor. on 2nd story conversion of existing bedroom into hallway and bathroom and construction of 2 bedrooms
Valuation:
$265,000
Permit #:
RB1802184
Status:
expired
Fee:
$14,464
Permit Type:
N/A
Building Type:
N/A
C/o water heater in same location
Valuation:
$500
Permit #:
P2502-057
Status:
final
Fee:
$125
Permit Type:
50-100 gl water h...
Building Type:
N/A
C/o subpanel and f/o permit e1303-039
Valuation:
$1,000
Permit #:
E2502-070
Status:
final
Fee:
$125
Permit Type:
C/o sub panel
Building Type:
N/A
Roof shingles - repair. not street visible touch-up exterior paint shingles replaced in kind
Valuation:
$15,000
Permit #:
202404220476
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Demolish old 15 x 15 garage to make room to construct new adu unit on property under permit under permit number b2020-02794. property in fire zone 2
Valuation:
$8,000
Permit #:
B2021-00222
Status:
issued
Fee:
$529
Permit Type:
N/A
Building Type:
N/A
Duplex: 1332 oxford -add 151 sf addition remodel kitchen 1/2 bathroom bath1 and bedroom 2. new 180sf deck. @1334 oxford side: relocate entry porch to the front new window/door new 265sf deck. new hot tub in the rear yard. fire zone 2 **add electrical to upgrade the main service panel from 100 amps to 320 amps. subject to field inspection
Valuation:
$121,800
Permit #:
B2019-05276
Status:
final
Fee:
$7,292
Permit Type:
N/A
Building Type:
N/A
Revision to pa# 202106253254. lower slab at storage to create wine room. reframe porch due to dryrot. structural revision to gridlines b and e
Valuation:
$36,000
Permit #:
202204011352
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remove and replace approx. 60 sqft of roof over front of building & repaint. replace tiles w new in-kind tiles
Valuation:
$3,000
Permit #:
202206106054
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Mechanical to construct a 647 sq. ft. 2nd story addition at rear of existing split-level single family dwelling. remodel and expansion of dining room and kitchen on main floor. on 2nd story conversion of existing bedroom into hallway and bathroom and construction of 2 bedrooms. - fau system
Valuation:
N/A
Permit #:
RM1801665
Status:
final
Fee:
$609
Permit Type:
N/A
Building Type:
N/A
Electrical to construct a 647 sq. ft. 2nd story addition at rear of existing split-level single family dwelling. remodel and expansion of dining room and kitchen on main floor. on 2nd story conversion of existing bedroom into hallway and bathroom and construction of 2 bedrooms. - 200amp service upgrade new sub panel
Valuation:
N/A
Permit #:
RE1802725
Status:
final
Fee:
$757
Permit Type:
N/A
Building Type:
N/A
Ev charger
Valuation:
N/A
Permit #:
B2502-138
Status:
final
Fee:
$450
Permit Type:
Alter-sfd
Building Type:
N/A
Demolish [e] fireplace; install [n] gas fireplace w [n] line & electrical connection
Valuation:
$7,000
Permit #:
171278
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Repair rotted siding w new hardi plank 300 sq ft approx and paint rear of property
Valuation:
$3,000
Permit #:
202201065449
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Administrative permit only for planning to conduct 311 notification for work previously approved in pa201405095404 and planning applicatoin 2014-003273-var per matthew ditto. no work under this permit
Valuation:
$1
Permit #:
202009275182
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Similar Contractors See more
193
BZ Score
$200K
Avg Project
-
Projects
187
BZ Score
$30K
Avg Project
-
Projects
188
BZ Score
$30K
Avg Project
-
Projects
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
C A Duffy Construction License info
Verified License
| License # | 756734 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for C A Duffy Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
57
Permits
- Building permit records show that C A Duffy Construction has worked on 57 permitted projects.
C A Duffy Construction Employees
CD
Columba Anthony Duffy
Sole Owner
We had a wonderful experience with Columba
Duffy and his crew. Very reliable, flexible, knowledgeable
and got the job done in a reasonable time period.
The quality of work they provided was top notch.
I would defiantly use them again in the future.