Updated: Apr 20, 2026
Location and Projects
Address
5370 LOS MONTEROS, Yorba Linda, CA, 92887
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Southbay Structure Construction
Southbay Structure at 5370 LOS MONTEROS, Yorba Linda, CA 92887, held a General Contractor license (#1072454) with the California contractors license board with an expiration date of 01-31-2029. We last verified the license was inactive on 04-19-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Southbay Structure Services
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Southbay Structure Contact Information
Phone Number: (715) 292-9244
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Address: 5370 LOS MONTEROS, Yorba Linda, CA 92887
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Southbay Structure Yorba Linda
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Southbay Structure, click “This is My Business” to update your information.
Activity
|
9 projects
|
2025 |
|
8 projects
|
2024 |
|
12 projects
|
2023 |
Our building permit records indicate that Southbay Structure has worked on at least
29.0 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.
Experience
|
8 projects
|
Home Additions |
|
6 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Southbay Structure mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
2 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
6 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
The typical size of their permits is approximately $99,750. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Scope of work: -construct (n) 924 sq. ft. front and rear addition. -rebuild roof raising lower top plate to higher ceiling. -reconfigured the layout of bedrooms bedrooms and kitchen. -relocate and upgrade electrical service panel to 200 amps
Valuation:
$340,783
Permit #:
2024 074843 RS
Status:
issued
Fee:
$1,848
Permit Type:
Single-family
Building Type:
N/A
Rev 1 to (bradu-24-0013) originally proposed to legalize rear addition and convert into adu 464 sq.ft. 2 bed 1 bah revision to increase size of conversion to include portion of garage and to propose a 798 sq.ft. total adu 3 bed 2 bathroom
Valuation:
$71,807
Permit #:
BRALT-25-0023
Status:
complete
Fee:
$14,079
Permit Type:
Revisions
Building Type:
N/A
Restaurant tenant improvement - new interior fit out for liyin restaurant and baby cafe - new customer/dining area food preparation area office ada restrooms and restrooms kitchen w wash area dry storage walk-in cooler and walk-in freezer - new equipment and furniture - new wall floor and ceiling finish. refer to finish plan - new drop ceiling tiles for kitchen and food preparation ar... see more
Valuation:
$350,000
Permit #:
BCALT-23-0041
Status:
final
Fee:
$18,223
Permit Type:
Tenant improvement
Building Type:
N/A
Construct an approx. 1 000sqft detached single-story adu with 2 bedrooms 2 bathrooms attached 16sqft storage (water heater and furnace) and attached 9sqft storage (for new subpanel) 3847 antonini way - main house - adu
Valuation:
$300,000
Permit #:
B23-2097
Status:
expired
Fee:
$2,512
Permit Type:
N/A
Building Type:
N/A
Convert detached garage into 526 sf 2-bedroom adu with 49 sf attached laundry sheds; with (n) 40 gal. water heater mini-split hvac 100a subpanel and (n) ev outlet on (n) 4’-0” high wall on driveway; for main house main panel upgrade to 200a (n) electrical and plumbing lines to laundry sheds
Valuation:
$80,000
Permit #:
BRADU-24-0018
Status:
final
Fee:
$7,099
Permit Type:
N/A
Building Type:
N/A
Rear horizontal extension to an existing 2 story single family dwelling. 1st fl - new family room 365 sq ft and remodel throughout the 1st fl. addition 1 new full bathroom laundry room; 2nd fl - new roof deck. relocated water heater and furnace
Valuation:
$100,000
Permit #:
202411134897
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Rev 1 delta 1: connect adu to (e) water meter no longer intalling dedicated water meter 200 amp electrical meter for adu instead of 100 amp
Valuation:
N/A
Permit #:
BRALT-25-0016
Status:
complete
Fee:
$400
Permit Type:
Revisions
Building Type:
N/A
New detached adu 800 sq.ft two bedrooms and two bathrooms
Valuation:
$162,016
Permit #:
BRADU-25-0037
Status:
triage
Fee:
$2,557
Permit Type:
N/A
Building Type:
N/A
Rev 1 to bradu-23-0019 - upgrade (e) 100 amp electrical main panel to 200 amp dual meter panel with 100 amp meter for detached adu
Valuation:
$1,500
Permit #:
BRALT-25-0085
Status:
complete
Fee:
$476
Permit Type:
Interior remodel
Building Type:
N/A
1) remodel existing kitchen; 2) replace one window in the south side of the kitchen; 3) replace existing closet door in bedroom #1; 4) remove existing storage in hallway for the new refrigerator space; 5) demolish existing wall in between the kitchen and dining area; 6) new bathroom remodel on upper floor; 7) replace window in the bathroom on upper floor; 8) new plumbing electrical an... see more
Valuation:
$60,000
Permit #:
BRALT-23-0032
Status:
final
Fee:
$3,525
Permit Type:
Interior remodel
Building Type:
N/A
Attached covered porch approx 622 sqft with outdoor bbq (2) sinks pizza oven. addition gas and electrical. new retaining wall at total 40 lin ft. ***field rev sub 1 8/24/23 - pier location changed pier depth changed foundation beam attached to existing foundation retaining wall at grid line pier removed*** note: p23-0005 effective feb 8 23
Valuation:
$150,000
Permit #:
B23-1240
Status:
final
Fee:
$6,141
Permit Type:
N/A
Building Type:
N/A
New detached adu 799 sq ft - 3 bed/2bath- 100 amp electric panel minisplit heat pump water heater rev 1 bralt-25-0085 - upgrade (e) 100 amp electrical main panel to 200 amp dual meter panel with 100 amp meter for detached adu (in review not issued)
Valuation:
$190,000
Permit #:
BRADU-23-0019
Status:
complete
Fee:
$25,766
Permit Type:
N/A
Building Type:
N/A
Interior dropped ceiling over deli area. exterior paint & tile
Valuation:
$25,000
Permit #:
202502049660
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
Convert garage in 395 sq.ft. adu - 1 bedroom and 1 full bathroom - 100 amp main panel and gas meter for adu - new gas water for adu in (e) exterior closet -
Valuation:
$99,500
Permit #:
BRADU-23-0041
Status:
final
Fee:
$4,657
Permit Type:
N/A
Building Type:
N/A
Addition of one detached adu unit at the rear of the building under the state adu program
Valuation:
$150,000
Permit #:
202201065469
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Scope of work to include: - construction of a (n) 747 sq ft detached adu at rear lot of (e) single family residence duplex property - adu to consist of two bedrooms two bathrooms kitchen and living room
Valuation:
$97,543
Permit #:
2021 053945 RS
Status:
filed
Fee:
N/A
Permit Type:
2nd unit added
Building Type:
N/A
Scope of work to include: - construction of (n) 782 sq ft attached adu at rear lot of main residence - adu to consist of two bedrooms two bathrooms one living room and one kitchen
Valuation:
$95,764
Permit #:
2021 022566 RS
Status:
filed
Fee:
N/A
Permit Type:
2nd unit added
Building Type:
N/A
Legalize deck built without permits - reinforce deck framing beams and rafters per code - remove outdoors stove and kitchenette
Valuation:
$18,000
Permit #:
BRALT-23-0314
Status:
expired
Fee:
$139
Permit Type:
Repair
Building Type:
N/A
Rel. to bralt-23-0309 - added scope - full rewire and repipe
Valuation:
$5,000
Permit #:
BRALT-24-0022
Status:
final
Fee:
$367
Permit Type:
Repair
Building Type:
N/A
Adu address - 14432 cypress st
Valuation:
N/A
Permit #:
BRAAR-25-014
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Southbay Structure Reviews
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Southbay Structure License info
Inactive License
| License # | 1072454 |
| 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 Southbay Structure at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Southbay Structure, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
27
Permits
- Building permit records show that Southbay Structure has worked on 27 permitted projects.
Southbay Structure Employees
DY
Di Yang
Rmo / Ceo / Pres
DY
Di Yang
Rmo / Ceo / Pres
YW
Yufeng Wu
Officer
YW
Yufeng Wu
Officer