Updated: Aug 17, 2025
Location and Projects
Address
331 VALLE VISTA AVENUE, Monrovia, CA, 91016
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BLG Construction
BLG Construction, 331 Valle Vista Ave, Monrovia, CA (Owned by: Yun Tai Yen) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 96 ranks in the top 20% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring BLG Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
BLG Construction Services
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BLG Construction Contact Information
Phone Number: (626) 513-1475
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Address: 331 VALLE VISTA AVENUE, Monrovia, CA 91016
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BLG Construction Monrovia
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
BLG Construction has a BuildZoom score of 96, which places them above 80% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
1 project
|
2022 |
Our building permit records indicate that BLG Construction 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
|
$20k-$50k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Tenant improvement. full power and energy plan check. total affected area 1645sqft. scope of work includes installation of new branch circuits lights and lighting controls. panels are existing. (((note: per b# 20016-10000-07992: change of use - tenant improvement retail to dental office 1800sf 1 core and shell)))
Valuation:
N/A
Permit #:
20041-10000-12040
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Dish washer sink relocate water heater & washer/dryer hookups gas outlets and repipe one plumbing fixture
Valuation:
N/A
Permit #:
P22-43334
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
18 outlets 4 light fixtures garbage disposal dish washer range hood washing machine for kitchen remodel
Valuation:
N/A
Permit #:
E22-43332
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change of use - tenant improvement from retail to dental office 1800sf. in (e) core and shell building
Valuation:
$90,000
Permit #:
20016-10000-07992
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Potable water tenant improvement. connection to existing 1 1/2 inch domestic water meter
Valuation:
N/A
Permit #:
20042-10000-06809
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Single family residence - (n) pool 180 sf
Valuation:
$20,000
Permit #:
S2023-0253
Status:
final
Fee:
$1,294
Permit Type:
N/A
Building Type:
N/A
Change (3) 2 bedrom to matster bedrms create closet. change (2) bathroom into (1) bathroom room. 09/26/13 ceiling beam and columns alteration
Valuation:
$4,000
Permit #:
B13-0764
Status:
final
Fee:
$769
Permit Type:
N/A
Building Type:
N/A
Appliance vents for kitchen remodel
Valuation:
N/A
Permit #:
M22-43333
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel
Valuation:
$40,000
Permit #:
B22-43331
Status:
final
Fee:
N/A
Permit Type:
Rr residential al...
Building Type:
N/A
Water heater
Valuation:
N/A
Permit #:
21042-90000-02524
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Exhaust fan
Valuation:
N/A
Permit #:
21044-90000-01265
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
495 sf addition to existing single family dwelling
Valuation:
$50,000
Permit #:
15014-10000-02450
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
495 sf addition to existing single family dwelling
Valuation:
$50,000
Permit #:
15014-10000-02450
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Convert (e) dwelling unit into a duplex
Valuation:
$7,500
Permit #:
20016-10000-21807
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Reroof detached garage with composition shingles
Valuation:
$2,000
Permit #:
1801030063
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reroof house with composition shingle
Valuation:
$8,000
Permit #:
1801030062
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family residence addition relocate/add master bed/bath #3 enlarge 2 bedrooms & create study. construct new 2-car attached garage. misc. interior remodel to enlarge rooms & create 1/2 bathroom & foyer - addition covered porch/patios
Valuation:
$167,323
Permit #:
B00-041-422
Status:
final
Fee:
$5,774
Permit Type:
Dwellings
Building Type:
N/A
Proposed int & extension remodel of existing restaurant @ 2nd floor per plan - int remodel to create new partitioned dining area store front remodel new exterior glazing & door addition
Valuation:
$60,000
Permit #:
13016-10000-15923
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Addition of master suite bedroom 1/4 bathroom reconfigure existing living space and reroof remainder of house and garage w/30 squares of monier shake (charcoal or walnut color) to match remodel **roof material on hoa approved plans**upgrade electrical service 200 amp
Valuation:
$101,949
Permit #:
B00-032-345
Status:
final
Fee:
$4,296
Permit Type:
Dwellings
Building Type:
N/A
Interior remodel (700 s/f) - kitchen master bathroom convert nook to new chinese kitchen convert laundry tio new powder convert portion of master bathroom to closet space & relocate laundry under (e) patio
Valuation:
N/A
Permit #:
BLD2014-00583
Status:
final
Fee:
N/A
Permit Type:
General
Building Type:
N/A
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BLG Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
BLG Construction License info
Verified License
| License # | 901778 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for BLG 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 # | NAT-58078-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Sole Ownership |
- According to the United States Environmental Protection Agency, 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 BLG Construction at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Bonded
| Bonded Agent | Business Alliance Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
26
Permits
- Building permit records show that BLG Construction has worked on 26 permitted projects.
BLG Construction Employees
YY
Yun Tai Yen
Owner