Updated: Apr 02, 2026
Location and Projects
Address
660 Kendall Ave, Palo Alto, CA, 94306
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K Welton, Inc Photos
K Welton Construction
K Welton Construction is well known in the southern Peninsula area for creating modern, sophisticated, and elegant luxury homes, as well as their intimate involvement with every aspect of construction, comprehensive design input, and commitment to passive building techniques. K Welton Construction was awarded the Exceptional Residential Bay Area Design Award from the American Institute of Architects in 2006 and was featured in an article in The Atomic Ranch Quarterly magazine in 1995 for extensive renovations on a San Diego residential home. Based in Palo Alto for more than 18 years, they proudly serve Palo Alto, Atherton, Woodside, Los Altos Hills, Menlo Park, Portola Valley, and the surrounding area.
From BuildZoom: K Welton, Inc, 660 Kendall Ave, Palo Alto, CA (Owned by: Kirk Welton ) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 101 ranks in the top 12% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring K Welton, Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
K Welton, Inc Services
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Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Roofing
Electrical Work
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Other Exteriors
HVAC
Doors and Windows
Framing
Wood Fences
Other Carpentry
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Drywall
Interior Plaster
Brick and Blockwork
Other Masonry
Foundations
K Welton, Inc Contact Information
Phone Number: (650) 493-4140
Address: 660 Kendall Ave, Palo Alto, CA 94306
This is a sample of this contractor's permits. Click here to access their complete permit history.
Single family residence 2 story 3088 sf with attached garage (220 sf) and basement (1600 sf)
Valuation:
$2,500,000
Permit #:
19000-02213
Status:
final
Fee:
$29,380
Permit Type:
N/A
Building Type:
N/A
Residential remodel includes interior remodel 1 661 sf and new deck. service upgrade 200 amps. new mechanical electrical and plumbing work
Valuation:
$225,000
Permit #:
19000-03219
Status:
final
Fee:
$7,817
Permit Type:
N/A
Building Type:
N/A
Residential new 870 sf secondary dwelling unit 229 sf attached garage 220 sf covered porches. scope of work includes new tankless water heater. ***address assignment submitted for 1130 oregon*** carport removed from scope of work per new adu requirements**
Valuation:
$175,000
Permit #:
15000-01434
Status:
final
Fee:
$7,495
Permit Type:
N/A
Building Type:
N/A
#scanned# wine cellar: construct new 830 sq. ft. underground wine cellar with wet bar & 1/2 bathroom. landscape: install hardscape to include sunken patio with buffet table dry stacked walls 94 sq. ft. deck & garden kitchen with sink & gas fireplace resubmittal #1 - 4/7/17 - ssp - response to csg public works geo and planning. 5 full sets resubmittal #2 - 5/23/17 - wcm - response to b... see more
Valuation:
N/A
Permit #:
BLD2017-00233
Status:
final
Fee:
$15,387
Permit Type:
N/A
Building Type:
N/A
New detached garage 436 sf with storage room
Valuation:
$120,000
Permit #:
19000-03220
Status:
final
Fee:
$1,739
Permit Type:
N/A
Building Type:
N/A
Remove house to subfloor and rebuild
Valuation:
N/A
Permit #:
BLD19-01173
Status:
final
Fee:
$22,823
Permit Type:
N/A
Building Type:
N/A
Deconstruction of detached garage in preparation new construction 361 f
Valuation:
N/A
Permit #:
19000-03222
Status:
final
Fee:
$794
Permit Type:
N/A
Building Type:
N/A
New detached carport 238 sf
Valuation:
$85,000
Permit #:
19000-03221
Status:
issued
Fee:
$616
Permit Type:
N/A
Building Type:
N/A
Two bathrooms and kitchen remodel like for like replace four windows like for like
Valuation:
$40,000
Permit #:
19000-00260
Status:
final
Fee:
$586
Permit Type:
N/A
Building Type:
N/A
Replace lath and stucco for entire house to match existing
Valuation:
N/A
Permit #:
18000-01415
Status:
final
Fee:
$332
Permit Type:
N/A
Building Type:
N/A
New accessory structure (shed) 120 sf no plumbing w electrical
Valuation:
$5,000
Permit #:
19000-02217
Status:
final
Fee:
$328
Permit Type:
N/A
Building Type:
N/A
Demolish existing detached garage #2 602 sf
Valuation:
N/A
Permit #:
17000-01350
Status:
final
Fee:
$645
Permit Type:
N/A
Building Type:
N/A
Demolish existing detached garage #1 268 sf
Valuation:
N/A
Permit #:
17000-01349
Status:
final
Fee:
$645
Permit Type:
N/A
Building Type:
N/A
Remodel 1245 sf and addition 828 sf. first and second story addition. scope of work includes service upgrade 400 amps same location
Valuation:
$248,803
Permit #:
17000-01347
Status:
final
Fee:
$10,523
Permit Type:
N/A
Building Type:
N/A
Deconstruction of (e) house w attached garage
Valuation:
N/A
Permit #:
19000-02216
Status:
final
Fee:
$956
Permit Type:
N/A
Building Type:
N/A
Convert (e) bathroom into a laundry room
Valuation:
$1,200
Permit #:
18000-02146
Status:
final
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
Commercial/multi-family/condo/apt. - repairs
2015-08-26
Area: c03 cottage bay apartments apartment - 4 inspections - repair an existing balcony deck and deck joist suffering environmental damage. the 5 x 11'10 deck surface will be rmoved to allow sistering the associated joists and the deck surface will be replaced and new code compliant guard rails will installed. there will be no increase in square footage
Valuation:
$1,800
Permit #:
CBRC2015-00384
Status:
Final Processing
Fee:
$304
Permit Type:
N/A
Building Type:
N/A
Residential remodel (2230 sf). scope of work includes removal of exterior stairway converting a door on the first floor to a window and replacing exterior windows like for like at second floor porch
Valuation:
$197,680
Permit #:
14000-00313
Status:
final
Fee:
$6,216
Permit Type:
N/A
Building Type:
N/A
New sunken area 900sf at rear yard with and (2) new accessory structures 116sf and 343 sf respectively. associated mechanical electricl and plumbing
Valuation:
$85,000
Permit #:
15000-03000
Status:
final
Fee:
$4,837
Permit Type:
N/A
Building Type:
N/A
Tenant improvement and u&o for new tenant performance gaines intererior remodel scope of work includes new offices new mens and womens locker rooms. gas service relocation and new meter installation gas meter vault installation. no changes to the exterior. **u&o sent 06/22/17**
Valuation:
N/A
Permit #:
16000-00749
Status:
final
Fee:
$6,801
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
K Welton, Inc License info
Verified License
| License # | 677147 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for K Welton, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 619389 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for K Welton, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Everest Premier Insurance Company |
53
Permits
- Building permit records show that K Welton, Inc has worked on 53 permitted projects.
K Welton, Inc Employees
KW
Kirk Welton
Owner
MW
Maryanne Uhrig Welton
Officer