Updated: Apr 16, 2026
Location and Projects
Address
1377 SAN JUAN AVE, San Jose, CA, 95110
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Longteng 4520 Construction
Longteng 4520 serves residential clients in San Jose, California, focusing on a range of home improvement and construction projects. With experience evidenced by local permits, the company works primarily with homeowners seeking remodeling and renovation services. Longteng 4520 specializes in interior upgrades such as kitchen and bathroom remodels, as well as general home repairs and updates. Their portfolio includes projects that enhance both the functionality and visual appeal of living spaces. Based in San Jose, the company is familiar with the requirements and expectations specific to the region’s residential market. Longteng 4520 operates with a hands-on approach to project management, guiding clients from the planning phase through to project completion.
Longteng 4520 Services
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Longteng 4520 Contact Information
Phone Number: (408) 906-9996
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Address: 1377 SAN JUAN AVE, San Jose, CA 95110
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Longteng 4520 San Jose
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Longteng 4520 has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
10 projects
|
2025 |
Our building permit records indicate that Longteng 4520 has worked on at least
10.0 projects over the past year.
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
|
7 projects
|
Home Additions |
|
6 projects
|
Kitchen remodels |
|
5 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that Longteng 4520 mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
2 projects
|
$5k-$20k |
|
2 projects
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $102,181. 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: - demolish (e) 371 sq ft detached garage - construct a (n) 806 sq ft detached adu at rear lot of (e) main residence - adu to include 2 bedrooms 2 bathrooms kitchen/dining/living room with w/d - install (n) mini split system & (n) tankless water heater - install (n) 200amp electrical panel
Valuation:
$133,530
Permit #:
2024 105474 RS
Status:
issued
Fee:
$2,489
Permit Type:
2nd unit added
Building Type:
N/A
Addition and alterations w/calcs 1-story single family residence scope of work to include: addition 741 sq ft rewire whole house (n) air conditioner (n) concrete slab in garage remove (e) master bathroom and expand bedroom #3 convert living room to (n) bathroom #2 powder room master bathroom and great room (n) skylight in great room convert kitchen to master suite remodel bathroom #1
Valuation:
$132,330
Permit #:
2025 107188 RS
Status:
issued
Fee:
$2,194
Permit Type:
Single-family
Building Type:
N/A
Scope of work to include: (n) 480 sqft addition complete interior rebuild (n) front porch (n) 200a panel and rewire (n) hvac
Valuation:
$340,203
Permit #:
2025 114988 RS
Status:
issued
Fee:
$1,950
Permit Type:
Single-family
Building Type:
N/A
Scope of work to include: major kitchen remodel 2 major bathroom remodels relocate fau to attic & wh to garage (n) sliding door (n) subpanel
Valuation:
$9,609
Permit #:
2025 100440 RS
Status:
issued
Fee:
$1,463
Permit Type:
Single-family
Building Type:
N/A
Scope of work to include: major kitchen remodel (2) bathroom remodels (n) windows **evcs permit expired**
Valuation:
$13,585
Permit #:
2025 113656 RS
Status:
issued
Fee:
$1,950
Permit Type:
Single-family
Building Type:
N/A
Kitch addition bath; master ste new deck skylt rewire 200a
Valuation:
$90,000
Permit #:
B2025-0037
Status:
issued
Fee:
$10,040
Permit Type:
Interior remodel
Building Type:
N/A
Addition/remodel
Valuation:
N/A
Permit #:
BLD25-00030
Status:
final
Fee:
$28,216
Permit Type:
Main residence
Building Type:
N/A
Rear yard addition of 687 sf to addition (1) bedroom (1) bathroom and a living room. remodel the existing bedrooms and bathrooms. - 625 sf replace hvac. relocate the main electrical service to rear of addition. addition skylight in dining room new solar tube in foyer. on-site sewer lateral replacement
Valuation:
$212,000
Permit #:
BD-2025-298262
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family dwelling remodel of 346sf. remodel of kitchen to include removal of wall to create open kitchen. remodel laundry room and replace back door with sliding doors (enlarge opening) remodel (2) bathrooms on 2nd floor. addition recess lights through electrical service upgrade from 100amps to 200amps. replace in-kind plumbing throughout and addition a heat pump. revision #1: re... see more
Valuation:
$83,978
Permit #:
BD-2025-298397
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
421 sf interior remodel: remodel 115 sf kitchen and create pantry. remodel 236 sf primary bedroom - relocate wic and bathroom - remodel 27sf hall bathroom. addition wet bar. replace all windows (19) and replace (e) hvac
Valuation:
$102,181
Permit #:
BD-2025-298922
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Longteng 4520 Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Longteng 4520 License info
Verified License
| License # | 1133350 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Longteng 4520 at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
10
Permits
- Building permit records show that Longteng 4520 has worked on 10 permitted projects.
Longteng 4520 Employees
QZ
Qian Long Zheng
Sole Owner