Updated: May 11, 2026
Location and Projects
Address
270 HOLLISTER AVENUE, Alameda, CA, 94501
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HK Tong S Construction Architect
HK Tong S Construction, 270 Hollister Ave, Alameda, CA (Owned by: Tong Kai Jeffrey) holds a Architect license and 1 other license according to the California license board.
Their BuildZoom score of 93 ranks in the top 27% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring HK Tong S Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
HK Tong S Construction Services
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HK Tong S Construction Contact Information
Phone Number: (510) 688-0883
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Address: 270 HOLLISTER AVENUE, Alameda, CA 94501
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Building Permits by HK Tong S Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Single story addition of 749 sq. ft. at the rear of (e) single story house. new 107 sq. ft. rear deck at 30 inches in height. relocate (e) kitchen to (n) addition. design review approval pln17-0043. (bldg. mechanical. elect. plumbing.) **modification 5/17/17 (dm) addition 100 amp main and subpanel. **revise hip framing: 2x12 df #1 in lieu of 4x10 df #1 per cloud/delta #2 & letters dat... see more
Valuation:
$75,000
Permit #:
CB17-0309
Status:
final
Fee:
$6,510
Permit Type:
N/A
Building Type:
N/A
Interior remodel reroof to match existing. replace (8) aluminum window to vinyl closing off (10) windows installing (5) new vinyl windows. replace existing wood stair at building rear to new deck and stair (87 sf) and adding a 132 sf room at building rear to match existing height and style. replace iron plumbing to new copper pipe steel gas pipe and abs sewer pipe. (bldg/elec/mech/plu... see more
Valuation:
$50,000
Permit #:
CB17-0048
Status:
final
Fee:
$2,992
Permit Type:
N/A
Building Type:
N/A
Rev1- revise furnace and washer/dryer location; revise window #15 and #19; revise partition location at bathroom; modify shear wall length interior remodel reroof to match existing. replace (8) aluminum window to vinyl closing off (10) windows installing (5) new vinyl windows. replace existing wood stair at building rear to new deck and stair (87 sf) and adding a 132 sf room at buildi... see more
Valuation:
$100
Permit #:
CB17-0048-REV1
Status:
final
Fee:
$399
Permit Type:
N/A
Building Type:
N/A
Unit #a (upper unit) - reroof with sheathing; addition 2 skylights (operable vent); r/r wood rear stair; new concrete step at front stair; kitchen & bathroom remodel; upgrade electrical wiring plumbing gas lines; r/r 10 windows; and service upgrade to 175amp (bldg/plumbing/mech/elec)
Valuation:
$55,000
Permit #:
CB09-0313
Status:
final
Fee:
$4,914
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
HK Tong S Construction License info
Verified License
| License # | C34547 |
| Status | Active |
| State | California |
| Type | Architect |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for HK Tong S Construction at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 844140 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for HK Tong S Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
HK Tong S Construction Employees
KT
Kai Jeffrey Tong
Owner
TJ
Tong Kai Jeffrey
Owner