Updated: May 10, 2026
Location and Projects
Address
1098 JORDAN LANE, Napa, CA, 94559
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Grassi Construction Inc
Serving Napa, California and the surrounding region, Grassi Construction Inc has over three decades of experience in residential and commercial building projects. Established in 1992, the company manages construction projects ranging from ground-up custom homes to remodels, additions, and tenant improvements. Past work includes kitchen and bathroom remodels, whole-house renovations, and winery facility construction, reflecting a broad expertise in both residential and light commercial sectors. Grassi Construction Inc often collaborates directly with architects, designers, and property owners to deliver projects that align with clients' specific goals and design requirements. The team emphasizes building with environmentally responsible materials when specified and adapts to the unique needs of Napa Valley’s homes, vineyards, and business properties.
Grassi Construction Inc Services
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Grassi Construction Inc Contact Information
Phone Number: (707) 257-0751
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Address: 1098 JORDAN LANE, Napa, CA 94559
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Grassi Construction Inc Napa
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grassi Construction Inc has a BuildZoom score of 109, which places them above 95% of 336,931 contractors in California.
Activity
|
8 projects
|
2025 |
|
12 projects
|
2024 |
|
8 projects
|
2023 |
Our building permit records indicate that Grassi Construction Inc has worked on at least
28.0 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
|
6 projects
|
New Constructions |
|
4 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Grassi Construction Inc mostly works on
new construction
and home addition
projects.
Pricing
|
1 project
|
< $5k |
|
4 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
5 projects
|
$1mil+ |
The typical size of their permits is approximately $75,000. 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 Grassi Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Code violation - winery alteration- replace upper roof structure including new rafters and metal roof and addition new eaves. (lobby/entry)- roof over existing masonry wall small overhangs above entry doors
Valuation:
$250,000
Permit #:
BC24-01031-ALT
Status:
final
Fee:
$18,590
Permit Type:
N/A
Building Type:
N/A
Winery site improvements - landscape with 3 trellis and 2 fountains. rev # 1 - alter path to salon prive from pathway with stairs to curved ramp
Valuation:
$650,000
Permit #:
BC25-00430-NEW
Status:
issued
Fee:
$14,333
Permit Type:
N/A
Building Type:
N/A
Landscape with 3 trellis and 2 fountains
Valuation:
$650,000
Permit #:
S25-00207-COM
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New outdoor fermentation tank anchorage and catwalks (for a new winery production & hospitality building under separate permit)
Valuation:
$75,000
Permit #:
BC25-00762-NEW
Status:
issued
Fee:
$5,031
Permit Type:
N/A
Building Type:
N/A
Building new barn (4 101 sf) adu (1 298 sf) garage (1 897 sf) utility building (216 sf)
Valuation:
$3,946,550
Permit #:
S24-00819-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New landscape installation with walkways trellis site walls fountain and patio
Valuation:
$650,000
Permit #:
S24-00275-COM
Status:
denied application
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Winery alteration new entry archway and assocuated exterior flatwork ada ramps steps and handrdails and landscape walls ada revision #1- clarification to wall detail
Valuation:
$650,000
Permit #:
BC24-01524-ALT
Status:
final
Fee:
$13,334
Permit Type:
N/A
Building Type:
N/A
Winery exterior concrete wall 2 new fountains exterior lighting including planning dept landscape plan and (3) new trellis
Valuation:
$650,000
Permit #:
S24-00480-COM
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New pumphouse building with enclosure
Valuation:
$150,000
Permit #:
S25-00800-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Code violation winery alteration replace upper roof structure including new rafters and metal roof and addition new eaves. (lobby/entry)
Valuation:
$250,000
Permit #:
S24-00483-COM
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New detached garage (1 897 sf)
Valuation:
$673,950
Permit #:
BR24-00965-NEW
Status:
issued
Fee:
$18,414
Permit Type:
N/A
Building Type:
N/A
Fab & install exterior concrete tanks with a catwalk
Valuation:
$75,000
Permit #:
S25-00527-COM
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family residence
Valuation:
$7,042,800
Permit #:
S24-00818-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Fire damage repair (glass fire) of winery building and shade canopy access road to crush pad widened wine tanks/catwalks replaced/expanded (n) wine tanks added (n) shade sail (e) ada compliant bathroom to be expanded and remodeled with (n) roof and fixtures. revision #1: removal and replacement of existing crush pad and replacement of process waste trunk line
Valuation:
$2,900,000
Permit #:
BC21-01521-RPL
Status:
final
Fee:
$28,481
Permit Type:
N/A
Building Type:
N/A
Fire damage rebuild: replacement mechanical service building. revision #1 - ve design change on mechanical building/shed building changed to a container
Valuation:
$475,000
Permit #:
BC21-01519-RPL
Status:
final
Fee:
$12,119
Permit Type:
N/A
Building Type:
N/A
New adu (1 298 sf)
Valuation:
$778,800
Permit #:
BR24-00964-NEW
Status:
issued
Fee:
$21,760
Permit Type:
N/A
Building Type:
N/A
New barn - (4 101 sf)
Valuation:
$2,460,600
Permit #:
BR24-00963-NEW
Status:
issued
Fee:
$45,637
Permit Type:
N/A
Building Type:
N/A
Main dwelling addition of gym (516 conditioned sq. ft.)
Valuation:
$50,000
Permit #:
BR25-00333-ADD
Status:
issued
Fee:
$11,692
Permit Type:
N/A
Building Type:
N/A
***potential floodplain restrictions*** building addition
Valuation:
$50,000
Permit #:
S25-00243-RES
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New main dwelling
Valuation:
$7,142,800
Permit #:
BR24-00948-NEW
Status:
issued
Fee:
$200,095
Permit Type:
N/A
Building Type:
N/A
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Grassi Construction Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Grassi Construction Inc License info
Verified License
| License # | 855199 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation, Sole Ownership |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Grassi Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 424688 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation, 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 Grassi Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 587626 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation, 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 Grassi Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Bonded
| Bonded Agent | Developers Surety & Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Redwood Fire & Casualty Insurance Co |
142
Permits
- Building permit records show that Grassi Construction Inc has worked on 142 permitted projects.
Grassi Construction Inc Employees
JG
Jami Lee Grassi
Officer
MG
Mark Anthony Grassi
Rmo / Ceo / Pres
PN
Paul Richard Niles
Rmo