Updated: Apr 11, 2026
Location and Projects
Address
20326 E Crestline Dr, Walnut, CA, 91789
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Rich T Construction Inc
Rich T Construction Inc, 20326 E Crestline Dr, Walnut, CA (Employees: Harout Yacoubian, Harout Yacoubian, and Richard Wei Hsiung Tseng) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 84 does not rank in the top 50% of California contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Rich T Construction Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Rich T Construction Inc Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Roofing
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Framing
Wood Fences
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Drywall
Interior Plaster
Brick and Blockwork
Other Masonry
Foundations
Other Concrete
Demolition
Paving, Driveways, and Side...
Excavation and Grading
Other Site Work
Rich T Construction Inc Contact Information
Phone Number: (626) 201-2506
Address: 20326 E Crestline Dr, Walnut, CA 91789
Building Permits by Rich T Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
(n)2-story adu for 1200 sf (3)bdrm (3)bathrooms with 150sf deck on 2nd floor
Valuation:
$169,080
Permit #:
1705220035
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tear off comparable shingle install 45 squares comparable shingle crrc # 1045349
Valuation:
N/A
Permit #:
B19-2424
Status:
final
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
Tear off comparable shingle install 45 squares comparable shingle crrc # 1045349
Valuation:
N/A
Permit #:
B19-2423
Status:
final
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
Propose 427sf addition to (e) 1-story single family dwelling (1 bedroom 1bathrm 1 laundry room ) 366 sf covered patio
Valuation:
$70,250
Permit #:
1712270033
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1-story addition of bedroom den (2) bathroom 643sf; convert garage back to original use
Valuation:
$86,000
Permit #:
1611300060
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1-story addition of bedroom den (2) bathroom 643sf; convert garage back to original use
Valuation:
$86,000
Permit #:
1611300060
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Propose 427sf addition to (e) 1-story single family dwelling (1 bedroom 1bathrm 1 laundry room ) 366 sf covered patio
Valuation:
N/A
Permit #:
1805220010
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1-story addition of bedroom den (2) bathroom 643sf; convert garage back to original use
Valuation:
N/A
Permit #:
1801040015
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1-story addition of bedroom den (2) bathroom 643sf; convert garage back to original use
Valuation:
N/A
Permit #:
1801040019
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Legalize detached open deck 581 sf
Valuation:
$11,000
Permit #:
1611300061
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Legalize detached covered gazebo 65sf
Valuation:
$1,200
Permit #:
1611300055
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for 427 sf addition
Valuation:
N/A
Permit #:
1805220008
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install mini split system
Valuation:
N/A
Permit #:
1808140025
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install mini split system
Valuation:
N/A
Permit #:
1808140016
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
60 amp electrical subpanel
Valuation:
N/A
Permit #:
1807050030
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd unit and garage
Valuation:
N/A
Permit #:
1701040048
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(n)carport 324 sf
Valuation:
$8,673
Permit #:
1611030052
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd unit adu
Valuation:
N/A
Permit #:
1710030006
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd unit adu
Valuation:
N/A
Permit #:
1710030005
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 1st floor addition of masterbedrm, bathrm and wic (656 sf) 2nd floor addition 2nd masterbedrm, bathrm and wic (638 sf)
Valuation:
$250,000
Permit #:
1604270016
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rich T Construction Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Rich T Construction Inc License info
Verified License
| License # | 1045349 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Rich T Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 953771 |
| 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.
Check this license's status for Rich T Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
84
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
45
Permits
- Building permit records show that Rich T Construction Inc has worked on 45 permitted projects.
Rich T Construction Inc Employees
HY
Harout Yacoubian
Rmo
HY
Harout Yacoubian
Rmo
RT
Richard Wei Hsiung Tseng
Ceo/President
SW
Sherrie Wang
Ceo / President