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Steve founded Bay Area Designer Builders in 2001. His clients benefit from his 39 + years of experience in all areas of residential construction and design. His attention to detail and desire to communicate clearly with each client about their project every step of the way distinguishes BADBI from other construction companies.
From BuildZoom: Bay Area Designer Builders Inc, 16669 Selby Dr, San Leandro, CA (Owned by: Steven Shirley) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 105 ranks in the top 8% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Bay Area Designer Builders Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Create new jr adu in existing workshop/storage area in basement. new partial foundation. remove shingle siding install insulation new shear walls and sheathing install new shingles. replace selected windows. fire zone 2
Valuation:
$355,000
Permit #:
B2020-04459
Status:
issued
Fee:
$18,142
Permit Type:
N/A
Building Type:
N/A
(rbc) - building residential combo alteration- 1 & 2 unit residential (building)
Re-configure and rebuild (e) of 852sf upper-story deck for new exterior attached elevator to single family dwelling. construct new exterior attached concrete retaining walls. 8/6/19 adding subpanel with circuits breaker for elevator lights switches and receptacles
Valuation:
$49,500
Permit #:
RBC1804187
Status:
final
Fee:
$4,112
Permit Type:
N/A
Building Type:
N/A
(b) - building alteration - 3+ residential units or commercial (building)
Plumbing convert (e) accessory structure in rear yard to a secondary unit with 2-story addition (lower floor as part of secondary unit upper floor to be new master bathroom for (e) single family dwelling 65 sq.ft on each level, ) kitchen remodel and window modification in single family dwelling. drx170342 attached secondary unit to be 3270 florida st
Mechanical convert (e) accessory structure in rear yard to a secondary unit with 2-story addition (lower floor as part of secondary unit upper floor to be new master bathroom for (e) single family dwelling 65 sq.ft on each level, ) kitchen remodel and window modification in single family dwelling. drx170342 attached secondary unit to be 3270 florida st
Electrical convert (e) accessory structure in rear yard to a secondary unit with 2-story addition (lower floor as part of secondary unit upper floor to be new master bathroom for (e) single family dwelling 65 sq.ft on each level, ) kitchen remodel and window modification in single family dwelling. drx170342 attached secondary unit to be 3270 florida st
Mechanical to convert 455 sq. ft. of crawl space into 1 bed 1 full bathroom & wet bar within single family dwelling footprint. includes relocating laundry to create new interior stair & new windows & doors for addition. install dryer vent. drx170425
Electrical to convert 455 sq. ft. of crawl space into 1 bed 1 full bathroom & wet bar within single family dwelling footprint. includes relocating laundry to create new interior stair & new windows & doors for addition. install new subpanel. drx170425
Plumbing to convert 455 sq. ft. of crawl space into 1 bed 1 full bathroom & wet bar within single family dwelling footprint. includes relocating laundry to create new interior stair & new windows & doors for addition. perform gas test. drx170425
Convert 185 sq. ft. of crawl space into new closet & full bathroom at 1st floor & 64 sq. ft. of non-habitable space for laundry area within existing single family dwelling footprint. includes alterations to interior stairs relocating 1 window adding 1 window in new opening & replacing patio door at side of dwelling. drx171112
Convert 86 sq. ft. to habitable and 41sq. ft. non-habitable of lower level area to the existing lower level habitable space per plans. only exterior changes are relocation of door and change in window type o the main floor. primarily interior renovation work including reorienting interior stairs between the lower level and main floor
Plumbing related to convert 185 sq. ft. of crawl space into new closet & full bathroom at 1st floor & 64 sq. ft. of non-habitable space for laundry area within existing single family dwelling footprint. includes alterations to interior stairs relocating 1 window adding 1 window in new opening & replacing patio door at side of dwelling. drx171112
Electrical related to convert 185 sq. ft. of crawl space into new closet & full bathroom at 1st floor & 64 sq. ft. of non-habitable space for laundry area within existing single family dwelling footprint. includes alterations to interior stairs relocating 1 window adding 1 window in new opening & replacing patio door at side of dwelling. drx171112
Mechanical related to convert 185 sq. ft. of crawl space into new closet & full bathroom at 1st floor & 64 sq. ft. of non-habitable space for laundry area within existing single family dwelling footprint. includes alterations to interior stairs relocating 1 window adding 1 window in new opening & replacing patio door at side of dwelling. drx171112
Plumbing to convert 86 sq. ft. to habitable and 41sq. ft. non-habitable of lower level area to the existing lower level habitable space per plans. only exterior changes are relocation of door and change in window type o the main floor. primarily interior renovation work including reorienting interior stairs between the lower level and main floor
Valuation:
N/A
Permit #:
RP1701077
Status:
final
Fee:
$251
Permit Type:
N/A
Building Type:
N/A
(rm) - mechanical - 1 & 2 unit residential (building)
Mechanical to convert 86 sq. ft. to habitable and 41sq. ft. non-habitable of lower level area to the existing lower level habitable space per plans. only exterior changes are relocation of door and change in window type o the main floor. primarily interior renovation work including reorienting interior stairs between the lower level and main floor
Valuation:
N/A
Permit #:
RM1700754
Status:
final
Fee:
$468
Permit Type:
N/A
Building Type:
N/A
(re) - electrical - 1 & 2 unit residential (building)
Electrical to convert 86 sq. ft. to habitable and 41sq. ft. non-habitable of lower level area to the existing lower level habitable space per plans. only exterior changes are relocation of door and change in window type o the main floor. primarily interior renovation work including reorienting interior stairs between the lower level and main floor
Valuation:
N/A
Permit #:
RE1701273
Status:
final
Fee:
$290
Permit Type:
N/A
Building Type:
N/A
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BuildZoom verified this license was active as of May 2026.
Verify this license's status for Bay Area Designer Builders Inc at the California Contractors State License Board.
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License Not Verified
License #
812082
Status
Active
State
California
When BuildZoom last verified this license, it had an expiration date of August, 2021. Check the current license status of Bay Area Designer Builders Inc with the California Contractors State License Board
This is a sample of licensing data; click here to access a complete history.