Updated: Jul 15, 2026
Location and Projects
Address
PO BOX 122, Dixon, CA, 95620
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LEO AND MARK NELSON GENERAL CONTRACTORS
Serving Dixon, California and the surrounding region for over 37 years, Leo and Mark Nelson General Contractors bring decades of building experience to residential and agricultural projects. Their work includes custom home construction, barn and outbuilding development, and structural repairs for various property types. The company focuses on projects that blend functionality with the needs of rural and suburban homeowners, as demonstrated by their portfolio of completed homes and agricultural structures. Leo and Mark Nelson are actively involved in project management and site supervision, overseeing each phase from ground preparation to finish work. Their approach emphasizes reliable construction practices and familiarity with permits and regional building codes specific to Solano County and nearby areas.
LEO AND MARK NELSON GENERAL CONTRACTORS Services
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LEO AND MARK NELSON GENERAL CONTRACTORS Contact Information
Phone Number: (530) 409-2092
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Address: PO BOX 122, Dixon, CA 95620
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LEO AND MARK NELSON GENERAL CONTRACTORS Dixon
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
LEO AND MARK NELSON GENERAL CONTRACTORS has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
2 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that LEO AND MARK NELSON GENERAL CONTRACTORS has worked on at least
7.0 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-$20k |
|
2 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $43,300. 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.
Building Permits by LEO AND MARK NELSON GENERAL CONTRACTORS
This is a sample of this contractor's permits. Click here to access their complete permit history.
House alteration garage conversion to living space/adu (no new sqft) kitchen/bath remodel
2025-05-16
Continue vault from great room into kitchen move a few non bearing interior walls install new kitchen cabinets appliances and lighting in affected part of the home. new plumbing electrical flooring etc
Valuation:
$200,000
Permit #:
CBAR2024-01068
Status:
issued
Fee:
$3,758
Permit Type:
Alteration - remodel
Building Type:
N/A
Garage to adu
Valuation:
$74,000
Permit #:
2400002897
Status:
final
Fee:
N/A
Permit Type:
Bp for new reside...
Building Type:
N/A
Primary bathroom remodel
Valuation:
$31,000
Permit #:
2200004280
Status:
approved
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Reroof & dryrot repair
Valuation:
$38,000
Permit #:
2400003160
Status:
final
Fee:
N/A
Permit Type:
Reroof permit sin...
Building Type:
N/A
Replace master shower
Valuation:
$43,300
Permit #:
B2024-1173
Status:
issued
Fee:
$736
Permit Type:
Alteration/remodel
Building Type:
N/A
Bathroom remodel
Valuation:
$50,000
Permit #:
2400000998
Status:
final
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Window to door door
Valuation:
$12,000
Permit #:
2200000833
Status:
approved
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Run 3/4 dedicated gas line from meter to gas range (approx
Valuation:
N/A
Permit #:
BLD19-02044
Status:
final
Fee:
N/A
Permit Type:
Gas line
Building Type:
N/A
Panush residence - kitchen remodel: cabinets lights
Valuation:
$25,000
Permit #:
BLD20-00426
Status:
final
Fee:
$508
Permit Type:
Alteration
Building Type:
N/A
Dry rot ducts misc
Valuation:
$35,000
Permit #:
2000002037
Status:
final
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Courtyard wall
Valuation:
$15,000
Permit #:
2000001422
Status:
final
Fee:
N/A
Permit Type:
Bp for new reside...
Building Type:
N/A
Room addition with all trades
Valuation:
$55,000
Permit #:
1705-0250
Status:
final
Fee:
$1,462
Permit Type:
Residential
Building Type:
N/A
Room addition with all trades
Valuation:
$55,000
Permit #:
1705-0250
Status:
final
Fee:
$1,462
Permit Type:
Residential
Building Type:
N/A
Kitchen remodel per scope w all trades
Valuation:
$17,000
Permit #:
2301-0064
Status:
final
Fee:
$500
Permit Type:
Residential
Building Type:
N/A
Entry addition kit remod
Valuation:
$125,000
Permit #:
2000001459
Status:
final
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Retile shower rplc toile
Valuation:
$7,000
Permit #:
2300000003
Status:
approved
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Electrical service upgrade
Valuation:
$1,800
Permit #:
17-1026
Status:
final
Fee:
N/A
Permit Type:
Electric residential
Building Type:
Single family
Alternation/addition/repair/remodel to residential structures
2015-08-19
Room addition & patio covr
Valuation:
$91,000
Permit #:
15-1823
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family
Addition bathroom/laundry
Valuation:
$20,000
Permit #:
2100001956
Status:
approved
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
Openup kitchen/move door
Valuation:
$9,900
Permit #:
2100001071
Status:
approved
Fee:
N/A
Permit Type:
Alt/add/repair to...
Building Type:
N/A
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LEO AND MARK NELSON GENERAL CONTRACTORS License info
Verified License
| License # | NAT-F245218-1 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for LEO AND MARK NELSON GENERAL CONTRACTORS at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 541128 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for LEO AND MARK NELSON GENERAL CONTRACTORS at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Benchmark Insurance Company |
139
Permits
- Building permit records show that LEO AND MARK NELSON GENERAL CONTRACTORS has worked on 139 permitted projects.
LEO AND MARK NELSON GENERAL CONTRACTORS Employees
LS
Lonnie Ray Smithson
Officer
MN
Mark Carrol Nelson
Rmo / Ceo / Pres
TA
Theron Angus Andersen
Officer