Updated: Feb 27, 2026
Location and Projects
Address
440 N BARRANCA AVE SUITE 3752, Covina, CA, 91723
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Cornerstone Design Build Construction
Cornerstone Design Build, 440 N Barranca Ave, Covina, CA (Employee: Michael Andrews) holds a General Building license according to the California license board.
Their BuildZoom score of 101 ranks in the top 12% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cornerstone Design Build, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Cornerstone Design Build Services
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Cornerstone Design Build Contact Information
Phone Number: (310) 803-2600
Address: 440 N BARRANCA AVE SUITE 3752, Covina, CA 91723
Cornerstone Design Build Covina
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cornerstone Design Build has a BuildZoom score of 101, which places them above 88% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
2 projects
|
2024 |
Our building permit records indicate that Cornerstone Design Build has worked on at least
5.0 projects over the past 2 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 |
|
1 project
|
$100k-$250k |
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 Cornerstone Design Build
This is a sample of this contractor's permits. Click here to access their complete permit history.
R3/u1 1st flr: addition (1 057 sq ft) family room and pantry enlarge/reconfigure kitchen addition (396 sq ft) attached garage; remodel/reconfigure living room and (2) bedrooms convert bedroom to entry and bathroom to (2) bathrooms create bathroom; addition (141 sq ft) front porch addition (171 sq ft) rear patio ; new 2nd flr: addition (1 147 sq ft) master suite (2) bedrooms bathroom a... see more
Valuation:
N/A
Permit #:
PLM24-01313
Status:
issued
Fee:
$670
Permit Type:
N/A
Building Type:
N/A
R3/u1 1st flr: addition (1 057 sq ft) family room and pantry enlarge/reconfigure kitchen addition (396 sq ft) attached garage; remodel/reconfigure living room and (2) bedrooms convert bedroom to entry and bathroom to (2) bathrooms create bathroom; addition (141 sq ft) front porch addition (171 sq ft) rear patio ; new 2nd flr: addition (1 147 sq ft) master suite (2) bedrooms bathroom a... see more
Valuation:
N/A
Permit #:
MEC24-01134
Status:
issued
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
R3/u1 1st flr: addition (1 057 sq ft) family room and pantry enlarge/reconfigure kitchen addition (396 sq ft) attached garage; remodel/reconfigure living room and (2) bedrooms convert bedroom to entry and bathroom to (2) bathrooms create bathroom; addition (141 sq ft) front porch addition (171 sq ft) rear patio ; new 2nd flr: addition (1 147 sq ft) master suite (2) bedrooms bathroom a... see more
Valuation:
N/A
Permit #:
ELE24-01854
Status:
issued
Fee:
$434
Permit Type:
N/A
Building Type:
N/A
>>supplement to bld24-01269<< r3/u1: 1st flr: install (1) window increase ceiling height in entry and living room; 2nd flr: create bathroom
Valuation:
N/A
Permit #:
PLM25-00390
Status:
issued
Fee:
$140
Permit Type:
N/A
Building Type:
N/A
>>supplement to bld24-01269<< r3/u1: 1st flr: install (1) window increase ceiling height in entry and living room; 2nd flr: create bathroom
Valuation:
N/A
Permit #:
MEC25-00374
Status:
issued
Fee:
$71
Permit Type:
N/A
Building Type:
N/A
>>supplement to bld24-01269<< r3/u1: 1st flr: install (1) window increase ceiling height in entry and living room; 2nd flr: create bathroom
Valuation:
N/A
Permit #:
ELE25-00689
Status:
issued
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
>>supplement to bld24-01269<< r3/u1: 1st flr: install (1) window increase ceiling height in entry and living room; 2nd flr: create bathroom
Valuation:
N/A
Permit #:
BLD25-00629
Status:
issued
Fee:
$2,095
Permit Type:
N/A
Building Type:
N/A
New (3) unit detached adus
Valuation:
$200,000
Permit #:
25016-10000-12563
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Convert detached garage (360 sq ft) and addition (210 sq ft) to create new adu
Valuation:
N/A
Permit #:
PLM24-01314
Status:
issued
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Convert detached garage (360 sq ft) and addition (210 sq ft) to create new adu
Valuation:
N/A
Permit #:
MEC24-01135
Status:
issued
Fee:
$164
Permit Type:
N/A
Building Type:
N/A
Convert detached garage (360 sq ft) and addition (210 sq ft) to create new adu
Valuation:
N/A
Permit #:
ELE24-01855
Status:
issued
Fee:
$287
Permit Type:
N/A
Building Type:
N/A
Pool spa fountains (bsp) - comparable - commercial pool/spa
2025-02-04
Commercial pool & spa for fairfield marriot hotel
Valuation:
N/A
Permit #:
BSP2400565
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Concrete block freestanding masonry fence wall constructed per information bulletin p/bc 2020-096 located in residential zones maximum 6 feet height above grade and not located in the required front yard or within 5 feet of the side street lot line of a reverse corner lot (subject to additional limitations of lamc section 12.22c20 (f) and information bulletin p/zc 2002-002
Valuation:
$4,500
Permit #:
25020-40000-02608
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Cornerstone Design Build Reviews
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Verified License
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Cornerstone Design Build License info
Verified License
| License # | 1097027 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Cornerstone Design Build at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
Cornerstone Design Build Employees
MA
Michael Andrews
Ceo