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Updated: Jul 23, 2026
Location and Projects
Address
875 IDAHO MARYLAND ROAD, Grass Valley, CA, 95945
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CSF Construction Engineer
CSF Construction, 875 Idaho Maryland Rd, Grass Valley, CA (Owned by: Conor Stark Farrell) holds a General Engineering, General Building license and 2 other licenses according to the California license board.
Their BuildZoom score of 112 ranks in the top 3% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring CSF Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
CSF Construction Services
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CSF Construction Contact Information
Phone Number: (530) 205-7051
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Address: 875 IDAHO MARYLAND ROAD, Grass Valley, CA 95945
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CSF Construction Grass Valley
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
CSF Construction has a BuildZoom score of 112, which places them above 97% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
5 projects
|
2024 |
|
38 projects
|
2023 |
Our building permit records indicate that CSF Construction has worked on at least
45.0 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.
Experience
|
3 projects
|
Home Additions |
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that CSF Construction mostly works on
new construction
and home addition
projects.
Pricing
|
44 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
The typical size of their permits is approximately $12,536. This graph shows the distribution of these job values.
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.
Residential: limited review - electrical mechanical plumbing roof solar etc
2022-05-20
Reroof of 2149 sq ft residence - removal of existing composite shingles and replacing with owens corning duration cool roof shingles in color: night sky structure: dwelling material assembly: owens corning cool duration cool composite shingles in color:night sky current roof: unknown composite shingles overlaying existing: no # of existing layers: 1
Valuation:
$28,894
Permit #:
BLD22-02606
Status:
complete
Fee:
$211
Permit Type:
Alteration
Building Type:
N/A
Residential: limited review - electrical mechanical plumbing roof solar etc
2022-08-22
Comparable for comparable main dwelling - 2019 cbc code - cbc 7a roof coverings valley & gutter protection required - reroof permit for: tear off and install - minimum class a roofing assembly required - the roof covering installed on the structure identified above must be installed per the manufacturer's requirements for installation. - cf2r-alt-05-e may be required at final sra mode... see more
Valuation:
$28,000
Permit #:
BLD22-01855
Status:
complete
Fee:
$211
Permit Type:
Alteration
Building Type:
N/A
Full deck replacement with like for like size with wui rated composite decking
Valuation:
$8,000
Permit #:
25BLD-0077
Status:
final
Fee:
$533
Permit Type:
Single family dwe...
Building Type:
N/A
Residential - with plan check - new construction
2024-08-08
Demolish of old deck. re-build of new deck like of like size as per engineered specs with pressure treated wood framing and wui rated composite decking material
Valuation:
$13,500
Permit #:
24BLD-0198
Status:
final
Fee:
$491
Permit Type:
Single family dwe...
Building Type:
N/A
Tear off and reroof single family residence using owens corning roof cool shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0141
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0098
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0097
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0096
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0095
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0093
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0092
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0091
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0090
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0088
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0087
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0086
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0085
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0084
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0083
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
Tear off and reroof single family residence using owens corning cool roof shingles 20+sri
Valuation:
$12,536
Permit #:
23BLD-0082
Status:
final
Fee:
$258
Permit Type:
Tearoff & reroof
Building Type:
N/A
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BZ Score
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Avg Project
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BZ Score
$3.6K
Avg Project
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Avg Project
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Projects
CSF Construction Reviews
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Verified License
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CSF Construction License info
Verified License
| License # | 796799 |
| Status | Active |
| State | California |
| Type | General Engineering, General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for CSF 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 # | 1129840 |
| Status | Inactive |
| State | California |
| Type | General Engineering, General Building |
| 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 CSF 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 # | 1087995 |
| Status | Inactive |
| State | California |
| Type | Roofing |
| 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 CSF Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
Insured
| Insurer | Accelerant Specialty Insurance Company |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
62
Permits
- Building permit records show that CSF Construction has worked on 62 permitted projects.
CSF Construction Employees
AQ
Alejandro Pozos Quintana
Officer
AQ
Alejandro Pozos Quintana
Officer
CF
Conor Stark Farrell
Owner