Updated: Jun 17, 2026
Location and Projects
Address
1829 MORNING CANYON ROAD, Diamond Bar, CA, 91765
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L L L DEVELOPMENT Construction
Serving Diamond Bar, CA, L L L Development Inc specializes in residential construction and remodeling projects. With 16 years of experience in the industry, the company manages a range of home improvement services tailored to homeowners in the Diamond Bar area and surrounding communities. Their project portfolio includes custom home builds, home additions, kitchen remodels, and bathroom renovations. L L L Development Inc emphasizes clear project management and efficient workflow to ensure timely completion of residential construction tasks. The company works closely with clients to understand project requirements and align them with current construction codes and standards. L L L Development Inc has established a presence in the local market as a residential contractor with a focus on comprehensive home improvement solutions.
L L L DEVELOPMENT INC Services
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L L L DEVELOPMENT INC Contact Information
Phone Number: (626) 348-7388
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Address: 1829 MORNING CANYON ROAD, Diamond Bar, CA 91765
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L L L DEVELOPMENT INC Diamond Bar
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
L L L DEVELOPMENT INC has a BuildZoom score of 101, which places them above 88% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that L L L DEVELOPMENT INC has worked on at least
5.0 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 |
|
1 project
|
$5k-$20k |
|
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 L L L DEVELOPMENT INC
This is a sample of this contractor's permits. Click here to access their complete permit history.
New one- story accessory dwelling unit (adu) with 2 bedrooms 2 bathrooms kitchen and living room existing detached 2-car garage to be converted to a 448 s.f. adu with a proposed 236 s.f. addition
Valuation:
$120,000
Permit #:
BPA24-3119
Status:
complete
Fee:
N/A
Permit Type:
Detached
Building Type:
N/A
Existing detached 2-car garage to be converted to a 448 s.f. adu with a proposed 236 s.f. addition to the proposed adu
Valuation:
$120,000
Permit #:
B202406814
Status:
issued
Fee:
$3,412
Permit Type:
N/A
Building Type:
N/A
Permit for installation of sewer cleanout and connection to (e) city lateral
Valuation:
N/A
Permit #:
PLBG-24-00487
Status:
issued
Fee:
$1,152
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition of 130 sq. ft creating (3) additional bathrooms 4 x 2 sq ft. for entry way. reframe whole roof of 1, 415 sq. ft. permit to replace expired b16-1091
Valuation:
$75,485
Permit #:
B17-1073
Status:
final
Fee:
$5,577
Permit Type:
N/A
Building Type:
N/A
4'11 h x 40 retaining wall
Valuation:
$5,000
Permit #:
B14-0889
Status:
final
Fee:
$509
Permit Type:
N/A
Building Type:
N/A
Permit unpermitted attached patio (669sf)
Valuation:
$13,000
Permit #:
1711160042
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing roofing material replace wood and or resheath as needed. reroof house (1700 sf) and detached garage (500 sf) using crrc # 0850-0025 - malarkey - sienna blend
Valuation:
$19,200
Permit #:
B202302014
Status:
final
Fee:
$348
Permit Type:
N/A
Building Type:
N/A
Wu jack l l l development inc
Valuation:
N/A
Permit #:
1309190046
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove existing roofing material. replace wood and/or sheath as needed. reroof house only (800 sf) using crrc # 0850-0025 - malarkey - sienna blend
Valuation:
$3,600
Permit #:
B202302013
Status:
final
Fee:
$122
Permit Type:
N/A
Building Type:
N/A
Cec: legalize161sf of exp prmt78.23 & add1 bdrmlegalize188sf carport conversion to office/dining rm;legalize82sf prch &123sf ptio5 windws; replce2 windw eggress re-roof house to match existing
Valuation:
$50,790
Permit #:
1211140010
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family residence modify: (1) remove room 119 sf. (2) (e) electrical panel/meter relocation. (3) (e) 4-window relocation(4) redesign bathroom #1 layout. (5) (e) floor vents attic
Valuation:
$25,000
Permit #:
BL1309190046
Status:
Finaled
Fee:
N/A
Permit Type:
Rr residential al...
Building Type:
N/A
Kitchen and bathroom remodel change out fixtures only. *carbon monoxide alarms/smoke alarms are required for this project per 2013 crc section r314/r315
Valuation:
$4,000
Permit #:
B14-1065
Status:
final
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Single family residence modify: (1) remove room 119 sf. (2) (e) electrical panel/meter relocation. (3) (e) 4-window relocation(4) redesign bathroom #1 layout. (5) (e) floor vents attic
Valuation:
$25,000
Permit #:
BL1309190046
Status:
final
Fee:
N/A
Permit Type:
Rr residential al...
Building Type:
N/A
Tenant improvment at 1200 square feet (new shower room interior partitions & drywall ceilings) for gentle care & spa
Valuation:
$30,000
Permit #:
BLD2013-00389
Status:
Final
Fee:
N/A
Permit Type:
General
Building Type:
N/A
Replacement of plexiglas frontage on existing box lighted sign spa & massage electrical
Valuation:
N/A
Permit #:
BS1325569
Status:
final
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
New electrical panel 200 amp on new location 3 branchcircuit 4 outlets and 1 light fixture
Valuation:
$0
Permit #:
EL1401210033
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 2 story house w/attached 2 car garage. porch 123 sq. ft. open patio of 254 sq. ft. below and balcony above 254 sq. ft. block property wall 6ft x 150ft & 6ft x 100ft fire place on 1st fl. revised as built
Valuation:
$422,894
Permit #:
B08-1345
Status:
final
Fee:
$22,477
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition of 86 sq. ft bathroom room and laundry room. new roof structure with new tile roofing 12/06/11 added drywall repair throughout. restucco. addition 12 light fixtures. change roofing from tile to shingles
Valuation:
$60,001
Permit #:
B11-0677
Status:
final
Fee:
$3,473
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen; upgrade ungrounded electrical
Valuation:
$5,196
Permit #:
B13-0032
Status:
final
Fee:
$532
Permit Type:
Kitchen remodel
Building Type:
N/A
New electrical panel 200 amp on new location 3 branch circuit 4 outlets and 1 light fixture
Valuation:
N/A
Permit #:
1401210033
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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L L L DEVELOPMENT INC License info
Verified License
| License # | 923665 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for L L L DEVELOPMENT INC 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 | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
14
Permits
- Building permit records show that L L L DEVELOPMENT INC has worked on 14 permitted projects.
L L L DEVELOPMENT INC Employees
XW
Xiao Hong Wu
Rmo / Ceo / Pres