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Location and Projects

Address
1127 Chestnut St, San Francisco, CA, 94109
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Samuel Sinnott & Co Architect

Samuel Sinnott & Company is a construction corporation providing full services in Architecture, Construction, and Interior Design. We are dedicated to delivering quality residential or small commercial projects on time and budget.

Careful cost estimating and permit strategieshelp all our projects meet expectations.

The company was founded in 1984 by Samuel Sinnott. Call him for a free, onsite evaluation.

From BuildZoom: Samuel Sinnott & Co Inc, 1127 Chestnut St, San Francisco, CA (Employee: Dennis Page) holds a General Building, Painting And Decorating license and 3 other licenses according to the California license board.

Their BuildZoom score of 118 ranks in the top 1% of 336,931 California licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Samuel Sinnott & Co Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Samuel Sinnott & Co Inc Contact Information

Phone: (650) 325-5560
Address: 1127 Chestnut St, San Francisco, CA 94109

Samuel Sinnott & Co Inc San Francisco

Quality

118
99th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Samuel Sinnott & Co Inc has a BuildZoom score of 118, which places them above 99% of 336,931 contractors in California.

Activity

2 projects
 2025
5 projects
 2024
5 projects
 2023
Our building permit records indicate that Samuel Sinnott & Co Inc has worked on at least 12.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Experience

6 projects
 Home Additions
Analyzing permits over the last 4 years shows that Samuel Sinnott & Co Inc mostly works on home addition projects.

Pricing

1 project
 < $5k
1 project
 $5k-$20k
1 project
 $50k-$100k
2 projects
 $100k-$250k
Value Not Public: 4.0 projects
The typical size of their permits is approximately $50,000. 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.

Samuel Sinnott & Co Inc Reviews
5 out of 5 stars, based on 2 reviews

  • By a user in San Jose
    April 26, 2017
    Considered for New Home Construction
  • By Ivona
    February 12, 2013

    He is
    also a licensed architect and very knowledgeable about preliminary budgets and approval processes. He solves all the problems and is well worth the hourly fee.
Please write a review about Samuel Sinnott & Co Inc
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Building Permits by Samuel Sinnott & Co Inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Residential addition alteration to existing residence
4 Fremont Way, Redwood City, CA, 94062
2024-04-10
Remodel the lower floor (800 sf) remodel main floor (100 sf) addition to the lower floor (437 sf) demolish interior walls on the lower floor demolish the platform around the staircase on the main floor (40 sf) and remove fireplace and staircase
Valuation:
N/A
Permit #:
BLD2024-00790
Status:
triage
Fee:
$5,694
Permit Type:
N/A
Building Type:
N/A
Water heater
831 Sweeney Ave, Redwood City, CA, 94063
2025-02-18
Suite a: water heater replacement in the same location addition new electrical outlets addition new lighting and remove storage racks
Valuation:
N/A
Permit #:
BLD2025-00308
Status:
final
Fee:
$487
Permit Type:
N/A
Building Type:
N/A
Water heater
831 Sweeney Ave, Redwood City, CA, 94063
2025-02-18
Suite b: replace the water heater in the same location addition new lighting and addition new electrical receptacles
Valuation:
N/A
Permit #:
BLD2025-00309
Status:
final
Fee:
$487
Permit Type:
N/A
Building Type:
N/A
Building permit
1793 Santa Cruz Ave, Menlo Park, CA, 94025
2023-04-13
A first floor 348 square foot addition located at the rear of a single story single-family residence including 706 square feet of interior alterations 8/17/23 - revision to change the r-value at ceiling/roof from r-38 to r-19 per title 24 10/9/23 - replace the existing gas wall heater with an electric heat pump. revisions made on sheets a0.1 and mep.1
Valuation:
$200,000
Permit #:
BLD2023-00910
Status:
final
Fee:
$7,273
Permit Type:
Addition
Building Type:
N/A
Building permit
21 Athlone Way, Menlo Park, CA, 94025
2022-05-11
Addition/remodel: convert (e)utility room to 126sf of conditioned space on 1st floor for (n)pantry with utility. addition (n)231sf garage. addition 619sf for (n)2nd floor (office master bedroom master bathroom). replace all (e)windows in same location. 128sf front porch resubmittal #1 - wcm - 10/30/20 - response to comments resubmittal #2 - cls - 12/30/20 - response to building commen... see more
Valuation:
N/A
Permit #:
BLD2020-01723
Status:
final
Fee:
$12,212
Permit Type:
N/A
Building Type:
N/A
Building permit
2160 Mills Ave, Menlo Park, CA, 94025
2022-03-29
Landscape: install concrete walkways new fence and manual gates freestanding bbq island approx. 900 sq.ft wood decking with cable railing and 225 sq. ft. metal trellis. outdoor lighting planting and irrigation (relocate air conditioning unit to accommodate pool equipment separate permit) resubmittal #1 - mpv - 11/17/20 - response to comments. removed metal trellis. revision #1 - jlc -... see more
Valuation:
N/A
Permit #:
BLD2020-01404
Status:
final
Fee:
$7,692
Permit Type:
N/A
Building Type:
N/A
Building permit
143 Los Trancos Cir, Portola Valley, CA, 94028
2021-06-10
See revision # 1 new two story single family dwelling. four bedroom 3 bathroom. main story 1897 sf second story 1437 sf (total 3334sf). attached 408sf two car garage. three decks 156sf 140sf 121sf (total 417sf). retaining wall and hardscape walking path resubmittal # 1 - pvt - 02/15/2019 response to building planning public works & geo. - 5 revised sets & associated reports resubmitta... see more
Valuation:
N/A
Permit #:
BLD2018-02623
Status:
final
Fee:
$30,624
Permit Type:
N/A
Building Type:
N/A
Building permit
143 Los Trancos Cir, Portola Valley, CA, 94028
2021-06-10
See revision # 1 new two story single family dwelling. four bedroom 3 bathroom. main story 1897 sf second story 1437 sf (total 3334sf). attached 408sf two car garage. three decks 156sf 140sf 121sf (total 417sf). retaining wall and hardscape walking path resubmittal # 1 - pvt - 02/15/2019 response to building planning public works & geo. - 5 revised sets & associated reports resubmitta... see more
Valuation:
N/A
Permit #:
BLD2018-02623
Status:
final
Fee:
$30,624
Permit Type:
N/A
Building Type:
N/A
Building permit
250 Creek Dr, Menlo Park, CA, 94025
2023-02-23
A single family residence to remodel (e) garage to new family room. 495sf
Valuation:
$150,000
Permit #:
BLD2023-00437
Status:
withdrawn
Fee:
$1,823
Permit Type:
Alteration
Building Type:
N/A
Building permit
2390 Branner Dr, Menlo Park, CA, 94025
2021-04-20
Remodel and addition to existing one story residence 2/28/22 - upgrade currently approved 200amp electrical panel to 320amp (400amp rated at 80%) electrical panel. there are no changes in square feet and valuation
Valuation:
$150,000
Permit #:
BLD2021-01163
Status:
complete
Fee:
$7,024
Permit Type:
Addition
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
1877 N Lake Blvd, Tahoe City, CA, 96145
2024-11-21
Interior remodel bathroom 1 (63 sf) and bathroom 2 (38 sf). new loft (72 sf) above existing bath1 and bath2 with a new modular staircase kit to access the new loft
Valuation:
$51,930
Permit #:
BLD23-03882
Status:
complete
Fee:
$884
Permit Type:
Alteration
Building Type:
N/A
Building pre-application
2312 Crest Ln, Menlo Park, CA, 94025
2020-09-25
Family room kitchen and laundry remodel. replace existing windows and glass door in same location and size. addition a new window in kitchen. remove existing bathroom
Valuation:
$100,000
Permit #:
BPA2020-02417
Status:
filed
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Building permit
520 Barron St, Menlo Park, CA, 94025
2024-04-22
Single family residence front door replacement in same location and size repair siding and trim and repair exterior
Valuation:
$15,000
Permit #:
BLD2024-01091
Status:
final
Fee:
$475
Permit Type:
Repair
Building Type:
N/A
Building permit
150 Alma St, Menlo Park, CA, 94025
2020-01-29
An interior alteration to an existing condo to remodel the kitchen insulate and sheetrock the living room/study and install new lighting
Valuation:
$125,000
Permit #:
BLD2020-00274
Status:
complete
Fee:
$1,215
Permit Type:
Alteration
Building Type:
N/A
Building pre-application
250 Creek Dr, Menlo Park, CA, 94025
2022-11-15
A single family residence to remodel (e) garage to new family room. 495sf
Valuation:
$150,000
Permit #:
BPA2022-03043
Status:
filed
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Building pre-application
351 Willow Rd, Menlo Park, CA, 94025
2023-04-14
A single family residence to remodel hall bathroom 68.5 sf and 6 windows replacement
Valuation:
$50,000
Permit #:
BPA2023-00933
Status:
filed
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Water heater
831 Sweeney Ave, Redwood City, CA, 94063
2024-10-07
Water heater replacement in the same location and addition electrical receptacles
Valuation:
N/A
Permit #:
BLD2024-00902
Status:
final
Fee:
$422
Permit Type:
N/A
Building Type:
N/A
Water heater
831 Sweeney Ave, Redwood City, CA, 94063
2024-09-05
Water heater replacement in the same location and addition electrical receptacles suite h
Valuation:
N/A
Permit #:
BLD2024-00888
Status:
final
Fee:
$422
Permit Type:
N/A
Building Type:
N/A
Alteration
2500 Casa Bona Ave, Belmont, CA, 94002
2023-04-26
Remodel kitchen; relocate laundry to attic repl windows
Valuation:
$50,000
Permit #:
B2021-0535
Status:
final
Fee:
$5,630
Permit Type:
Interior remodel
Building Type:
N/A
Residential reroof
980 Rose Ave, Menlo Park, CA, 94025
2020-08-24
Reroof of detached garage in fire rated medium taper sawn wood shake. reroof of home under rer2020-01959. required inspections include tear off in progress and final
Valuation:
$4,000
Permit #:
RER2020-01972
Status:
complete
Fee:
$165
Permit Type:
Accessory structu...
Building Type:
N/A