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Location and Projects

Address
1011 Hartz Way, Danville, CA, 94526
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Keystone Builder Construction

Keystone Builder at 1011 Hartz Way, Danville, CA 94526, held a General Contractor license (#653344) with the California contractors license board with an expiration date of 09-30-1994. We last verified the license was expired on 05-28-2026.

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.

Keystone Builder Contact Information

Phone: (925) 786-2555
Address: 1011 Hartz Way, Danville, CA 94526

Building Permits by Keystone Builder

Sort by: Notable Notable | Date Date | Job Value Job Value
Bathroom remodel-replace bathtub & shower valve no changes
Valuation:
$9,500
Permit #:
B03-1567
Status:
canceled
Fee:
$212
Permit Type:
Alter/res
Building Type:
N/A
See description
Valuation:
$3,300
Permit #:
94-1758
Status:
N/A
Fee:
$67
Permit Type:
Alteration
Building Type:
N/A
(rbc) - building residential combo alteration- 1 & 2 unit residential (building)
2021-12-22
Kitchen remodel; no change to wall layout; new cabinets counter tops tile backsplash new lighting new sink new range vent alteration to (e) for new stove - permit includes mep's. 8/27/2021 revised scope: includes gas test
Valuation:
$25,000
Permit #:
RBC1804738
Status:
complete
Fee:
$1,985
Permit Type:
N/A
Building Type:
N/A
(rp) plumbing - 1 & 2 unit residential (building)
2019-01-17
Install (1) toilet (1) sink related to hall closet conversion to half-bath
Valuation:
N/A
Permit #:
RP1900142
Status:
expired
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
(rm) - mechanical - 1 & 2 unit residential (building)
2019-01-17
Install (1) bathroom fan related to hall closet conversion to half-bath
Valuation:
N/A
Permit #:
RM1900174
Status:
expired
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
(re) - electrical - 1 & 2 unit residential (building)
2019-01-17
Install (2) light fixtures (2) switches (1) gfi receptacle (1) bathroom fan related to hall closet conversion to half-bath
Valuation:
N/A
Permit #:
RE1900221
Status:
expired
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
(re) - electrical - 1 & 2 unit residential (building)
2021-08-02
Electrical for bathroom remodel includes replacement of surrounding. no change to wall layout
Valuation:
N/A
Permit #:
RE1803111
Status:
final
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
(rp) plumbing - 1 & 2 unit residential (building)
2021-08-02
Plumbing bathroom remodel includes replacement of surrounding. no change to wall layout
Valuation:
N/A
Permit #:
RP1802082
Status:
final
Fee:
$310
Permit Type:
N/A
Building Type:
N/A
Residential building - alteration
2018-07-11
Bathroom remodel includes replacement of surrounding. no change to wall layout
Valuation:
$15,000
Permit #:
RB1803435
Status:
final
Fee:
$1,510
Permit Type:
N/A
Building Type:
N/A

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