Updated: Dec 13, 2025
Location and Projects
Address
1520 Brookhollow Dr, Santa Ana, CA, 92705
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Xiao, Qiang Construction
Dr. Qiang Xiao leads AQX Engineering Inc. in Santa Ana, where the firm has provided structural, MEP, and civil design services since its founding in 2004. Serving Southern California and beyond, AQX Engineering undertakes projects ranging from additions and remodels of multi-family residences to high-end custom homes. The firm also handles commercial work, including both small-scale remodels and new construction of large buildings on varying site conditions. Dr. Xiao, with over 30 years of experience and a PhD in structural engineering from Vanderbilt University, specializes in structural engineering solutions such as temporary and permanent shoring systems, post-tension slab on grade, and concrete podium structures. His expertise spans residential buildings, retail centers, office spaces, warehouses, auto dealerships, and healthcare facilities.
Xiao, Qiang Services
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Xiao, Qiang Contact Information
Phone Number: (714) 662-0510
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Address: 1520 Brookhollow Dr, Santa Ana, CA 92705
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Xiao, Qiang Santa Ana
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Xiao, Qiang has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
61 projects
|
2025 |
|
41 projects
|
2024 |
|
43 projects
|
2023 |
Our building permit records indicate that Xiao, Qiang has worked on at least
145.0 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
|
75 projects
|
New Constructions |
|
12 projects
|
Home Additions |
|
8 projects
|
Multi-room remodels |
|
6 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Xiao, Qiang mostly works on
new construction
and home addition
projects.
Pricing
|
23 projects
|
< $5k |
|
11 projects
|
$5k-$20k |
|
7 projects
|
$20k-$50k |
|
7 projects
|
$50k-$100k |
|
13 projects
|
$100k-$250k |
|
61 projects
|
$250k-$500k |
|
16 projects
|
$500k-$1mil |
|
3 projects
|
$1mil+ |
The typical size of their permits is approximately $282,000. 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.
Remove and replace existing attaced covered entry with interior remodel foundation repair and re-roofing to existing single family dwelling - per engineer *comply with department order effective date 03/09/2010. permit will expire 30 days from issuance date
Valuation:
$50,000
Permit #:
25016-20000-03725
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan tenant improvement to existing restaurant
Valuation:
$700,000
Permit #:
24016-10000-17440
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New 2-story irregular shaped 60'-6 x 40'-6 single familly dwelling with attached garage and attached 2-story accessory dwelling unit to comply with lamc 12.22 a.33(c) and (e) per engineering. nfpa-13d fire sprinkler thru-out"comply with department order effective date 05/04/2023. permit will expire 30 days from issuance date
Valuation:
$256,000
Permit #:
24010-20000-04573
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to permit #22010-20000-01584 to enclose covered patio to be part of the living area. no other changes. no change to the rfa. patio cover was originally included in the rfa as it was already covered. no change dimensions or height of the building
Valuation:
$501
Permit #:
22010-20001-01584
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3-story single family dwelling with attached garage and storage on ground level (front bldg)
Valuation:
$400,000
Permit #:
21010-10000-05021
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan. supplemental permit for permit #22010-10000-05226 to revise the 1st floor of front building duplex into a recreation room. no other changes. recreation room to be 1093 square feet and located only on the 1st floor of the front duplex
Valuation:
$5,000
Permit #:
22010-10001-05226
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(n) work room warehouse. see comment for parking requirement. comply with department order effective date 01/02/2013. permit will expire 30 days from issuance date. ceis case number is 488004
Valuation:
$90,000
Permit #:
24010-10000-04805
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
491 sf residential addition at rear of property. new master bathroom remodel (e) bathroom demolish sunroom expand kitchen addition new living room area addition new laundry room new windows & doors. bedroom count to remain at (3). install new 505 sf deck off the rear of the home
Valuation:
N/A
Permit #:
BLDG25-0789
Status:
issued
Fee:
N/A
Permit Type:
Addition remodel
Building Type:
N/A
Supplemental to 21010-10000-02564 to revise building and revise plot plan. original permit: new 3-story single family dwelling with attached adu per ca govt. code 65852.2(e)(1)(a) (bldg b)
Valuation:
$5,000
Permit #:
21010-10001-02564
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3-story single family dwelling (2 537 sf) w attach. 2-car carport (497 sf) and attach. adu (1 566 sf) per lamc 12.22 a.33 (c)-(d) and 2 roof deck areas (11'-8 x 19'-10 each) at rear of the lot ; single family dwelling = 6-bed 5-bath ; adu = 4-bed 4-bath
Valuation:
$400,000
Permit #:
21010-30000-06864
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3-story duplex (3 132 sf) w attach. 2-car carport (497 sf) and attach. adu (976 sf) per lamc 12.22 a.33 (c)-(d) and 2 roof deck areas (11'-8 x 19'-10 each) at rear of the lot ; unit a ; 1 566 sf ; unit b ; 1 566 sf ; adu ; 976 sf ;
Valuation:
$425,000
Permit #:
21010-30000-06919
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3-story duplex (3 646 sf) w 2 attach. 2-car garages (699 sf) and 2 roof deck areas (13'-11 x 11'-2 each) at rear of the lot ; 1518 s magnolia ave = 1 892 sf ; garage = 363 sf ; 1518 1 2 s magnolia ave = 1 754 sf ; garage = 336 sf ;
Valuation:
$400,000
Permit #:
21010-30000-03152
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3 story duplex with attached carport (bldg b). nfpa13d fire sprinklers through out
Valuation:
$485,000
Permit #:
21010-10000-06777
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3 story duplex with attached carport (bldg a). nfpa 13d fire sprinklers through out
Valuation:
$485,000
Permit #:
21010-10000-06776
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan supplemental permit to 09016-10000-11661 for revised mep plans to include anchorage for a new air conditioning unit on the rooftop
Valuation:
$50,000
Permit #:
09016-10003-11661
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
**eplan** supplemental permit for 21010-10000-06685 revise foundation details and include missing detail sheets. no change to building footprint floor area elevations
Valuation:
N/A
Permit #:
21010-10001-06685
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
**eplan** supplemental permit for: 21010-10000-06684 revise foundation details and include missing detail sheets. no change to building footprint floor area elevations
Valuation:
$5,400
Permit #:
21010-20001-06684
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3-story duplex (3 638 sf) w attach. 2-car garage (389 sf) and 2 roof deck areas (8'-8 x 19'-7 each) at front of the lot ; 614 n rampart = 4-bed 4-bath ; 1 747 sf ; 614 1/2 n rampart = 4-bed 4-bath ; 1 891 sf
Valuation:
$400,000
Permit #:
21010-30000-06862
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Building e new 2 story single family dwelling with attached garage (bldg e) nfpa 13r fire sprinklers through out
Valuation:
$470,000
Permit #:
21010-10000-06780
Status:
plancheck
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 3-story duplex w an attach. adu per lamc 12.22 a.33 (c)-(d) and 2 roof deck areas (13'-0 x 9'-0 each) at front of the lot ; unit 1 = 1 130 sf ; unit 2 = 1 130 sf ; unit 3 (adu) = 705 sf
Valuation:
$400,000
Permit #:
21010-30000-03153
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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Verified License
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Xiao, Qiang License info
Verified License
| License # | CAS5289 |
| Status | Active |
| State | California |
- BuildZoom has not verified this license since June, 2015.
Verify this license's status for Xiao, Qiang at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
419
Permits
- Building permit records show that Xiao, Qiang has worked on 419 permitted projects.