Updated: Jul 17, 2026
Location and Projects
Address
1921 RIDGEMONT DR, San Jose, CA, 95148
Use our bidding system to
request a quote
Diamond Building & Construction
Diamond Building & Construction, 1921 Ridgemont Dr, San Jose, CA (Employees: Phillip Chang, Phillip Chang, and Regev Amir) holds a General Building, Electrical license and 2 other licenses according to the California license board.
Their BuildZoom score of 105 ranks in the top 8% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diamond Building & Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Diamond Building & Construction Services
Start a project today:
Diamond Building & Construction Contact Information
Phone Number: (415) 472-3333
Edit
Address: 1921 RIDGEMONT DR, San Jose, CA 95148
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Diamond Building & Construction San Jose
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Diamond Building & Construction has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Diamond Building & Construction has worked on at least
12.0 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
|
3 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
The typical size of their permits is approximately $60,000. 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 Diamond Building & Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Convert (e) work room to lab1 (e) storage room to lab2 (e) office to lab3 (3) (e) office spaces into (1) office space (2) (n) roll up doors. replace of (e) door to taller door. (n) lab equipment. associated electrical work
Valuation:
$60,000
Permit #:
BLD2025-06061
Status:
approved - pending plans/docs
Fee:
$1,031
Permit Type:
Alteration
Building Type:
N/A
Install electrical receptacles and power drops for equipment testing area
Valuation:
$60,000
Permit #:
BLD2025-04555
Status:
issued
Fee:
$1,526
Permit Type:
Alteration
Building Type:
N/A
Addition recessed lighting throughout home it is the permittee’s obligation and responsibility to ensure that all work associated with this permit complies with all current orders of the health officer of the county of san mateo related to the novel coronavirus disease 2019 (covid-19). the county of san mateo assumes no responsibility for work performed by permittee that is not in com... see more
Valuation:
N/A
Permit #:
BLD2022-01839
Status:
final
Fee:
$855
Permit Type:
N/A
Building Type:
N/A
Scope of work: 1) major remodel to (e) kitchen 2) major remodel to (2) (e) bathrooms 3) recongure interior walls to create (n) master suite hallway closets & remodel laundry area 4)add 100 amp subpanel 5)reroof entire house 6)r/r windows and doors throughout
Valuation:
$82,641
Permit #:
2020 143112 RS
Status:
final
Fee:
N/A
Permit Type:
Single-family
Building Type:
N/A
Scope of work: -remodel 2 (e) full bathroom including to relocate a petition wall -remodel half bathroom by replacing cabinets faucet and toilet -remodel kitchen -remove (1) fireplace -rewire whole house -relocate furnace to garage including (n) duct work -relocate the water heater with tankless water heater and move to garage -replace interior and exterior doors without replacing hea... see more
Valuation:
$66,076
Permit #:
2021 010777 RS
Status:
final
Fee:
N/A
Permit Type:
Single-family
Building Type:
N/A
1) 1475 sq ft finish interior for hair salon with wax room unisex restroom color station with kitchenette 2) addition of two exhause fans 3) addition of four shampoo stations
Valuation:
$92,000
Permit #:
2021 052867 CI
Status:
issued
Fee:
N/A
Permit Type:
Retail
Building Type:
N/A
1) 1475 sq ft finish interior for hair salon with wax room unisex restroom color station with kitchenette 2) addition of two exhause fans 3) addition of four shampoo stations
Valuation:
$92,000
Permit #:
2021 032276 CI
Status:
issued
Fee:
N/A
Permit Type:
Retail
Building Type:
N/A
Install a 1200 a distribution switchboard with (8) new test stations. upgrade existing pg&e building electrical service
Valuation:
$100,000
Permit #:
BLD2023-08222
Status:
filed
Fee:
$1,084
Permit Type:
Alteration
Building Type:
N/A
Electrical panel upgrade to 200 amp and relocation of panel box to move away from gas meter per code
Valuation:
N/A
Permit #:
DEV24-1231
Status:
final
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Demolish exsiting patio cover and building new sun room
Valuation:
$80,000
Permit #:
B2024-0015
Status:
final
Fee:
$7,284
Permit Type:
Other
Building Type:
N/A
Remodel
Valuation:
$74,200
Permit #:
22-2175
Status:
final
Fee:
$1,244
Permit Type:
N/A
Building Type:
N/A
Kitchen remodeling with wall alteration per plan. addition bay window (no foundation alteration) enclose window. final expired furnace permit (expired permit #2009 002526)
Valuation:
$30,200
Permit #:
2019 101777 RS
Status:
final
Fee:
N/A
Permit Type:
Single family
Building Type:
N/A
Kitchen and bathroom remodel replace 4 windows; svc 200a
Valuation:
$49,000
Permit #:
B2023-0058
Status:
final
Fee:
$3,508
Permit Type:
Alteration
Building Type:
N/A
Residential kitchen and bathroom remodel like for like
2024-09-16
Remodel 2 bathrooms like for like: phased. includes 2 retrofit windows
Valuation:
$30,000
Permit #:
BLD2025-01834
Status:
complete
Fee:
$1,219
Permit Type:
N/A
Building Type:
N/A
Building drlr fremont square retail- facade improvements (byc)
Valuation:
N/A
Permit #:
BLD2017-04645
Status:
issued
Fee:
$2,004
Permit Type:
N/A
Building Type:
N/A
Subpanel
Valuation:
N/A
Permit #:
23-0055
Status:
expired
Fee:
$300
Permit Type:
Service upgrade
Building Type:
N/A
Repair
Valuation:
$20,000
Permit #:
25-0227
Status:
issued
Fee:
$1,830
Permit Type:
N/A
Building Type:
N/A
Convert a portion of existing storage to an electronic test lab (suite 1 and 2 occupied as 1 suite)
Valuation:
$15,000
Permit #:
BLD2020-59633
Status:
final
Fee:
$1,542
Permit Type:
N/A
Building Type:
N/A
Scope of work: -permit to final expired 16-110249
Valuation:
N/A
Permit #:
2020 104002 CI
Status:
filed
Fee:
N/A
Permit Type:
Office
Building Type:
N/A
Scope of work to include: upgrade main electrical panel from 100a to 200a
Valuation:
N/A
Permit #:
2019 134397 RS
Status:
final
Fee:
N/A
Permit Type:
Single family
Building Type:
N/A
Similar Contractors See more
193
BZ Score
$200K
Avg Project
-
Projects
188
BZ Score
$30K
Avg Project
-
Projects
192
BZ Score
$30K
Avg Project
-
Projects
Diamond Building & Construction Reviews
BuildZoom hasn't received any reviews for Diamond Building & Construction. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Diamond Building & Construction License info
Verified License
| License # | 993191 |
| Status | Active |
| State | California |
| Type | General Building, Electrical |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Diamond Building & 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 # | 848789 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- 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 Diamond Building & 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 # | 854336 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- 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 Diamond Building & Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $12,500 |
Insured
| Workers Comp Provider | Castlepoint National Insurance Company |
69
Permits
- Building permit records show that Diamond Building & Construction has worked on 69 permitted projects.
Diamond Building & Construction Employees
PC
Phillip Chang
Ceo / President
PC
Phillip Chang
CEO / PRESIDENT
RA
Regev Amir
Rmo / Ceo / Pres
RA
Regev Amir
Sole Owner
WC
Winston Chow
Rmo
WC
Winston Chow
Rmo