Updated: Jan 08, 2026
Location and Projects
Address
3515 MT DIABLO BLVD #82, Lafayette, CA, 94549
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Carbon Zero Buildings Construction
Carbon Zero Buildings Inc, 3515 Mt Diablo Blvd, Lafayette, CA (Employees: Andrew John Mcnamara and Gregory Michael Sherman) holds a General Building license according to the California license board.
Their BuildZoom score of 110 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Carbon Zero Buildings Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Carbon Zero Buildings Inc Services
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Carbon Zero Buildings Inc Contact Information
Phone Number: (510) 255-0044
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Address: 3515 MT DIABLO BLVD #82, Lafayette, CA 94549
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Carbon Zero Buildings Inc Lafayette
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Carbon Zero Buildings Inc has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
15 projects
|
2025 |
|
10 projects
|
2024 |
|
23 projects
|
2023 |
Our building permit records indicate that Carbon Zero Buildings Inc has worked on at least
48.0 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
|
19 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Carbon Zero Buildings Inc mostly works on
home addition
projects.
Pricing
|
4 projects
|
< $5k |
|
8 projects
|
$5k-$20k |
|
12 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $50,000. 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 Carbon Zero Buildings Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Epc - replace gas water heating system in the basement boiler room at existing apartment building a with electric heat pump system. provide power supply for the central heat pump water heaters run new power circuits from the house panels to feed the new heat pump station panel board
Valuation:
$250,000
Permit #:
COM-2516935
Status:
issued
Fee:
$4,991
Permit Type:
N/A
Building Type:
N/A
Remove old water boilers install new heat pump new hot water heating system install new heat pump and perfrom associated electrical work disconnect and cap gas pipes
Valuation:
$200,000
Permit #:
202505307581
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Building k - at two separate locations within building k demolish (e) gas water heaters install (1) electric swing tank water heaters (5) heat pump water heaters (1) pressure tank and (2) storage tanks - at two separate locations within building k install (1) subpanel w (9) circuits for water heating equipment - install (n) support system at roof of building for (n) water heating equi... see more
Valuation:
$30,716
Permit #:
2025 122062 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building j demolish (e) gas water heaters - install (1) electric swing tank water heaters (6) heat pump water heaters (1) pressure tank and (2) storage tanks - install (1) subpanel w (10) circuits for water heating equipment - install (n) support system at roof of building for (n) water heating equipment
Valuation:
$30,716
Permit #:
2025 122061 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building i demolish (e) gas water heaters - install (1) electric swing tank water heaters (6) heat pump water heaters (1) pressure tank (1) buffer tank water heater and (3) storage tanks - install (1) subpanel w (12) circuits for water heating equipment - install (n) support system at roof of building for (n) water heating equipment
Valuation:
$30,716
Permit #:
2025 122058 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building h demolish (e) gas water heaters - install (1) electric swing tank water heaters (8) heat pump water heaters (1) pressure tank (0) buffer tank water heater and (3) storage tanks - install (1) subpanel w (14) circuits for water heating equipment - install (n) support system at roof of building for (n) water heating equipment
Valuation:
$30,716
Permit #:
2025 122057 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building e demolish (e) gas water heaters install (1) electric swing tank water heaters (7) heat pump water heaters (1) pressure tank (0) buffer tank water heater and (3) storage tanks - install (1) subpanel w (13) circuits for water heating equipment - install new support system at roof of building for (n) water heating equipment
Valuation:
$30,716
Permit #:
2025 122042 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building d demolish (e) gas water heaters - install (1) electric swing tank water heaters (5) heat pump water heaters (1) pressure tank and (3) storage tanks - install (1) subpanel w (9) circuits for water heating equipment - install (n) support system at roof of building for (n) water heating equipment
Valuation:
$30,716
Permit #:
2025 122037 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
New building or addition commercial coach ground mount solar light pole standard
2024-10-22
- (30) new ev charging stations - (2) new pool heaters on new concrete pad - (3) laundry room water heater replacements - (1) common area water heater replacement with new 208 electrical circuit - (16) new 208 volt electrical circuits and outlets in laundry rooms ch01 - (evcs) parking on north side of building 4 is residential; exception 2 to cbc 11b-228.3.2 (new note on plans)
Valuation:
$150,000
Permit #:
CBNC2024-00037
Status:
complete
Fee:
$6,283
Permit Type:
New building
Building Type:
N/A
Miscellaneous water heater electrical plumbing hvac mechanical solar/pv
2024-02-08
- (30) new ev charging stations - (2) new pool heaters on new concrete pad - (3) laundry room water heater replacements - (1) common area water heater replacement with new 208 electrical circuit - (16) new 208 volt electrical circuits and outlets in laundry rooms
Valuation:
$150,000
Permit #:
MISC2024-00259
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Online replace gas water heating & dryer systems throughout existing multifamily residential complex with heat pump water heaters **permit for inspections only plan check under b24-4309 - madera vista building 3
Valuation:
N/A
Permit #:
B25-0593
Status:
issued
Fee:
N/A
Permit Type:
Multi-family alte...
Building Type:
N/A
Online replace gas water heating & dryer systems throughout existing multifamily residential complex with heat pump water heaters **permit for inspections only plan check under b24-4309 - madera vista building 2
Valuation:
N/A
Permit #:
B25-0592
Status:
issued
Fee:
N/A
Permit Type:
Multi-family alte...
Building Type:
N/A
Building g demolish (e) gas water heaters - install (2) electric swing tank water heaters (2) heat pump water heaters (1) pressure tank and (1) storage tanks - install (1) subpanel w (7) circuits for water heating equipment *no structural work*
Valuation:
N/A
Permit #:
2025 122049 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building f demolish (e) gas water heaters - install (2) electric swing tank water heaters (2) heat pump water heaters (1) pressure tank and (1) storage tanks - install (1) subpanel w (7) circuits for water heating equipment *no structural work*
Valuation:
N/A
Permit #:
2025 122045 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Building c demolish (e) gas water heaters - install (2) electric swing tank water heaters (3) heat pump water heaters (1) pressure tank and (1) storage tank - install (1) subpanel w (7) circuits for water heating equipment *no structural work*
Valuation:
N/A
Permit #:
2025 122032 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Remove 2 water boilers reconfigure solar and boiler storage provide new hot water heat pump on roof within associated electrical plumbing and mechanical work
Valuation:
$175,000
Permit #:
202506068146
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Building b demolish (e) gas water heaters - install (1) electric swing tank water heater (3) heat pump water heaters (1) pressure tank and (1) storage tank - install (1) subpanel w (7) circuits for water heating equipment *no structural work
Valuation:
N/A
Permit #:
2025 122027 MF
Status:
issued
Fee:
$2,340
Permit Type:
Apartment
Building Type:
N/A
Eplan on roof remove existing gas water heating and gas hvac systems and replace with electric water heating and heat pump hvac systems within existing multifamily building
Valuation:
$250,000
Permit #:
24016-20000-35316
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
1st fl/common area: install new heating system water + hvac 1-new subpanel 6-heating pumps 1 electrical tank 1 new outdoor receptacle roof: 2- rtu's 1- mini split unit pa#2024-1028-3888
Valuation:
N/A
Permit #:
E20250304641
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Upgrade to plumbing system (heat pumps & buffer tanks) and associated electrical work at roof top
Valuation:
$177,000
Permit #:
202501108130
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
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Carbon Zero Buildings Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Carbon Zero Buildings Inc License info
Verified License
| License # | 1098901 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Carbon Zero Buildings Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
43
Permits
- Building permit records show that Carbon Zero Buildings Inc has worked on 43 permitted projects.
Carbon Zero Buildings Inc Employees
AM
Andrew John Mcnamara
Rmo / Ceo / Pres
GS
Gregory Michael Sherman
Officer