Updated: Feb 04, 2026
Location and Projects
Address
282 Los Altos Dr, Kensington, CA, 94708
Use our bidding system to
request a quote
Green Mountain Builders Construction
Green Mountain Builders, 282 Los Altos Dr, Kensington, CA (Owned by: Gregory Brian Sage) holds a General Building license according to the California license board.
Their BuildZoom score of 99 ranks in the top 15% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Green Mountain Builders, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Green Mountain Builders Services
Start a project today:
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Pole Barn
ADU
Small Multi-Family Remodel ...
Whole Home Remodel
Pool House
Sunrooms and Greenhouses
Other Secondary Structure N...
Addition
Vertical Addition
Horizontal Addition
Vertical and Horizontal Add...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
Green Mountain Builders Contact Information
Phone Number: (510) 418-7978
Address: 282 Los Altos Dr, Kensington, CA 94708
Green Mountain Builders Kensington
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Green Mountain Builders has a BuildZoom score of 99, which places them above 85% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Green Mountain Builders has worked on at least
2.0 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
|
1 project
|
$5k-$20k |
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 Green Mountain Builders
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remodel to maintain existing garage lift up 10 on to new curb and slab new windows and doors electrical new sink new roof skylight. existing wall and roof framing to remain with upgrades as required by new code - 365 sq ft (bldg/elec/plumbing)
Valuation:
$50,000
Permit #:
CB23-0073
Status:
final
Fee:
$2,711
Permit Type:
N/A
Building Type:
N/A
Note: ***before any work in right of way please call 510-238-3860 forty-eight hours in advance. applicant is subject to fine if work is started without scheduling a pre-inspection*** install 1 sidewalk under-drain(s) per city standards (that branches out into 3 pipe openings). no structure allowed beyond property line w/o enmi. if working within 25 feet of a monument you must comply w... see more
Valuation:
N/A
Permit #:
CGS19136
Status:
expired
Fee:
$474
Permit Type:
N/A
Building Type:
N/A
Building new 752 sf adu new contractor: green mountain builders 09/22/21
Valuation:
$250,000
Permit #:
B2020-01421
Status:
issued
Fee:
$14,745
Permit Type:
N/A
Building Type:
N/A
Plumbing for 13.94 sq. ft. addition to the rear of the building renovation of kitchen living room fireplace & bathrooms. includes replacing water heater in new location & gas test
Valuation:
N/A
Permit #:
RP1603021
Status:
final
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Mechanical for 13.94 sq. ft. addition to the rear of the building renovation of kitchen living room fireplace & bathrooms. includes replacing split heating/cooling unit at 90% afue
Valuation:
N/A
Permit #:
RM1602040
Status:
final
Fee:
$417
Permit Type:
N/A
Building Type:
N/A
Remodel master bathroom new window & skylights
Valuation:
$60,000
Permit #:
B2020-02650
Status:
final
Fee:
$3,551
Permit Type:
N/A
Building Type:
N/A
Electrical for 13.94 sq. ft. addition to the rear of the building renovation of kitchen living room fireplace & bathrooms
Valuation:
N/A
Permit #:
RE1603960
Status:
final
Fee:
$489
Permit Type:
N/A
Building Type:
N/A
Mechanical for 13.94 sq. ft. addition to the rear of the building renovation of kitchen living room fireplace & bathrooms. includes replacing split heating/cooling unit at 90% afue
Valuation:
N/A
Permit #:
RM1602040
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for 13.94 sq. ft. addition to the rear of the building renovation of kitchen living room fireplace & bathrooms. includes replacing water heater in new location & gas test
Valuation:
N/A
Permit #:
RP1603021
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Allow for lowering of floor @ basement existing walls to new concrete new fire zone 2 - must comply with all fixtures & finishes. interior walls windows doors level install new slab anchor replace partial perimeter foundation to restrictions in fire zones
Valuation:
$175,000
Permit #:
0800001837
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-3 (3 wk
Building Type:
N/A
33 sq ft added for cantaliver closets in both bedrooms for a total of 66 sq.ft demolish bathroom in master-bath and construct new master-bath new windows lighting fixures seismic upgrades to include bolting fdt.w/shearwalls.elect, mechanical & plumbing added.dc * psl is on 09-1348--bt
Valuation:
$75,000
Permit #:
1000000584
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-3 (3 wk
Building Type:
N/A
Remodel (e) house and addition 182 sf bedroom addition new contractor: green mountain builders 09/22/21
Valuation:
$150,000
Permit #:
B2020-01484
Status:
final
Fee:
$8,172
Permit Type:
N/A
Building Type:
N/A
Electrical for 13.94 sq. ft. addition to the rear of the building renovation of kitchen living room fireplace & bathrooms
Valuation:
N/A
Permit #:
RE1603960
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish existing masonary fireplace and replace w/new zero clearance model fieplace and flue also remove two existing single glaze casement windows and replace w/two marvin double glazed casement windows must comply with fire zone 2 requirements refer to bmc 19.28.160 ***** print only 4 comment lines
Valuation:
$30,000
Permit #:
0600005269
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-0 express
Building Type:
N/A
Demolished and all debris has been inspection once garage has been removed from site. under this permit - no new work!) applicant is to schedule a final demolish (e) detached garage (only
Valuation:
$10,000
Permit #:
1100003347
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-1 (1 wk
Building Type:
N/A
Replacement of eleven (11) windows in existing openings. replacement of bathroom fixtures and surfaces in existing locations. applicant came to psc with instructions from mary lou to increase valuation by $6, 000-mdd
Valuation:
$32,000
Permit #:
0600000122
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-0 express
Building Type:
N/A
Permit value$10k demolished and all debris has been inspection once garage has been removed from site. under this permit - no new work!) applicant is to schedule a final demolish (e) detached garage (only
Valuation:
N/A
Permit #:
1100003347
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical remodel bathroom; no structural or exterior changes
Valuation:
N/A
Permit #:
RE1600451
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(re) - electrical - 1 & 2 unit residential (building)
2016-06-07
Electrical remodel bathroom; no structural or exterior changes
Valuation:
N/A
Permit #:
RE1600451
Status:
final
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
Remodel of kitchen and bathroom; rebuild deck. 3/6/11: description to read remodel of kitchen and install new bathroom adjacent to master bedroom
Valuation:
$75,000
Permit #:
RB1101153
Status:
final
Fee:
$3,119
Permit Type:
N/A
Building Type:
N/A
Green Mountain Builders Reviews
BuildZoom hasn't received any reviews for Green Mountain Builders. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Green Mountain Builders License info
Verified License
| License # | 468567 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Green Mountain Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Bonded
| Bonded Agent | Business Alliance Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
17
Permits
- Building permit records show that Green Mountain Builders has worked on 17 permitted projects.
Green Mountain Builders Employees
GS
Gregory Brian Sage
Owner