Updated: May 28, 2026
Location and Projects
Address
P O BOX 1092, Novato, CA, 94948
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D F OSullivan Construction
Serving Novato, Marin County, and the surrounding Bay Area, D F OSullivan Construction specializes in residential remodeling and home improvement projects. With 30 years of experience in the construction industry, the company takes on a range of renovation work, including kitchen and bathroom remodels, room additions, and general home upgrades. Projects frequently include structural alterations and interior updates tailored to homeowners’ needs. D F OSullivan Construction works directly with property owners to enhance living spaces, and the company is familiar with local building codes and permitting processes in Novato and nearby communities. The business draws on decades of local experience to coordinate each phase of construction, from planning and demolition to finish carpentry and final walkthroughs.
D F OSullivan Construction Services
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D F OSullivan Construction Contact Information
Phone Number: (415) 759-0688
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Address: P O BOX 1092, Novato, CA 94948
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D F OSullivan Construction Novato
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
D F OSullivan Construction has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
2 projects
|
2024 |
Our building permit records indicate that D F OSullivan Construction has worked on at least
4.0 projects over the past 2 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
|
< $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.
Building Permits by D F OSullivan Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove existing sunroom at 4th fl. new rear deck at 4th fl. new outdoor furniture storage for (n) deck. new fixed window at 4th fl at rear wall to match existing
Valuation:
$15,000
Permit #:
202408057955
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Addition 200 sf remodel existing w./pem
Valuation:
N/A
Permit #:
BD2412-0003
Status:
plancheck
Fee:
$30,904
Permit Type:
N/A
Building Type:
N/A
Exploratory permit to investiaget sagging in ground level floor aat front of building. all work to be patched and repaired upon completion of exploration
Valuation:
$1,000
Permit #:
202404129930
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remove non-load bearing wall. new tub. double vanity toilet and bathroom remdodel
Valuation:
$30,000
Permit #:
202409060237
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Addition (3) new bathrooms ground floor 3rd floor & 4th floor. new plumbing and electrical
Valuation:
$48,000
Permit #:
201503312455
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
C/o 2 split systems like for like
Valuation:
$20,284
Permit #:
19-04044
Status:
final
Fee:
$301
Permit Type:
Residential mecha...
Building Type:
N/A
New service to existing ag pump
Valuation:
$1,000
Permit #:
16701
Status:
final
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
Replace siding in kind at p/l wall (side of right building)
Valuation:
$50,000
Permit #:
201302119977
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Replace windows front and rear (wood) double hung same size same location in kind
Valuation:
$30,000
Permit #:
201206041803
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
3x kitchen remodel 4x bathroom remodel no change on walls and openings
Valuation:
$30,000
Permit #:
201206041800
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Replace less than 50% dry rot in rear staircase
Valuation:
$5,000
Permit #:
201212075746
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
New roof deck
Valuation:
$24,000
Permit #:
201312093710
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Raise vent relocate washer-dryer
Valuation:
$3,000
Permit #:
BPA13-334
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Converted: replace stucco install water service remodel ba
Valuation:
$10,000
Permit #:
B-CN2003-1577
Status:
final
Fee:
$332
Permit Type:
Residential
Building Type:
N/A
Replace dry rot on rear stair case (less than 50%)
Valuation:
$5,000
Permit #:
201207023959
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
2-1/2 bathroom water heater kitchen sink main water line gas furnace range and dryer
Valuation:
N/A
Permit #:
357225
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
ENC2015-0198
Status:
issued
Fee:
$100
Permit Type:
Utility underground
Building Type:
N/A
Kitchen sink new toilet gas range furnace water heater and washer
Valuation:
N/A
Permit #:
357226
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1 tub bathroom 1 tub 1 sprinkler 1 toilet an radiant heat boiler
Valuation:
N/A
Permit #:
355445
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Additional inspection. amendment to permit no. 355445
Valuation:
N/A
Permit #:
356835
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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D F OSullivan Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
D F OSullivan Construction License info
Verified License
| License # | 506132 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for D F OSullivan Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 725235 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for D F OSullivan Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | Developers Surety & Indemnity Company |
| Bond Value | $15,000 |
21
Permits
- Building permit records show that D F OSullivan Construction has worked on 21 permitted projects.
D F OSullivan Construction Employees
DS
Denis Frances O Sullivan
Owner
JS
James Anthony O Sullivan
Sole Owner