Updated: Jun 12, 2026
Location and Projects
Address
320 RITCH STREET, San Francisco, CA, 94107
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Principal Builders Construction
Established in 2003, Principal Builders Inc focuses on commercial interior construction throughout the Bay Area. Based in San Francisco, the company serves Fortune 1000 clients across multiple industries, including finance, law, technology, advertising, and health and wellness. Principal Builders specializes in tenant improvement projects, collaborating closely with each client to turn complex design concepts into functional, finished spaces. The firm emphasizes clear communication and rigorous project management, providing transparency in timelines, costs, and deliverables. With over two decades of experience, Principal Builders is known for handling intricate commercial interior projects that demand careful planning and execution to meet the specific operational needs of businesses in San Francisco and the broader Bay Area.
Principal Builders Inc Services
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Principal Builders Inc Contact Information
Phone Number: (415) 434-1500
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Address: 320 RITCH STREET, San Francisco, CA 94107
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Principal Builders Inc San Francisco
Quality
114
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Principal Builders Inc has a BuildZoom score of 114, which places them above 98% of 336,931 contractors in California.
Activity
|
26 projects
|
2025 |
|
27 projects
|
2024 |
|
31 projects
|
2023 |
Our building permit records indicate that Principal Builders Inc has worked on at least
84.0 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.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
52 projects
|
Commercial Renovations |
|
14 projects
|
Home Additions |
|
5 projects
|
New Constructions |
|
5 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Principal Builders Inc mostly works on
commercial renovation
and home addition
projects.
Pricing
|
15 projects
|
< $5k |
|
13 projects
|
$5k-$20k |
|
17 projects
|
$20k-$50k |
|
13 projects
|
$50k-$100k |
|
25 projects
|
$100k-$250k |
|
15 projects
|
$250k-$500k |
|
13 projects
|
$500k-$1mil |
|
29 projects
|
$1mil+ |
The typical size of their permits is approximately $175,682. 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.
Building Permits by Principal Builders Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Level 15; the minor alteration of an existing office space conversion to a digital content studio. scope of work includes: selective demolition non-structure partitions interior finishes ceilings doors frames hardware and specialty a/v equipments
Valuation:
$1,300,000
Permit #:
202411265718
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
L1- new server room workspace a desk area. l2- new electrical room to supply the server room on l1. office. scope of work does not overlap with 2025-0317-2334
Valuation:
$278,168
Permit #:
202504043753
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
25th fl ste 2500 -ti includes demolish of non structural partitions & building new non structural partitions.(n) operable partition; upgrades incude (n) millwork lighting & finishes throuhgout. all (n) or revised meps under separate permmit. building fully sprinklered. (life
Valuation:
$3,678,028
Permit #:
202507160935
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
L2: demolish of existing ceiling partitions millwork & minor alterations to the existing office including non-load bearing partitions. suspended ceiling new millwork and finishes and selective new light fixture. mep deffered
Valuation:
$750,000
Permit #:
202506108373
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
L3 and l5: demolish of existing ceiling partitions millwork and minor alterations to the (e) office including non-load bearing partitions suspended ceiling new millwork and finishes and selective new light fixture
Valuation:
$580,000
Permit #:
202506108366
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
3rd fl - project limited to demising of an executive dining area from the remaining dining on the 3rd fl; demolish scope includes the removal of (e) millwork seating and light fixtures; construction scope of work includes the introductionof a new non-load bearing interior partition & door new glazaing
Valuation:
$116,000
Permit #:
202503273205
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Level 1 thru level 4 & roof only: tenant improvement.new partitions ceiling finishes millwork & lighting. mep included.new communicating stair from level 1 thru 6. with coiling fire door at l1-l2.kitchen/health department scope under separate permit
Valuation:
$43,775,250
Permit #:
202503172334
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Level 6 interior tenant improvement includes new non load bearing partitions ceilings finishes millwork lighting. mep included
Valuation:
$5,955,727
Permit #:
202503112039
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Ste 1500- 15/fl- minimal interior demolish of non structural elements and construction of inter office including but not limited to interior partitions doors finishes celing lighting mechanical and electrical outlets and switches. refer to mechanical and electrical. plans. restroom ada accessibility and (n)
Valuation:
$3,500,000
Permit #:
202410152899
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
23/f suite 2350: interior tenant improvement. - removal and new non-structural partitions finishes millwork and plumbing fixtures. upgrades to restrooms for accessibility common corridors and 23/f elevator lobby. mep fire life-safety and sprinkler under separate permit
Valuation:
$1,160,282
Permit #:
202408269475
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
23rd/f: demolish of non-structural interior partitions & new contruction of interior partitions break room millwork mep & lighting. no structural work inclued in scope no imcrease in area. no change in occupancy or use
Valuation:
$1,031,140
Permit #:
202408158808
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Commercial (alter) - tenant improvement (office)
2025-01-02
Interior tenant improvement of 24 820sf - luminary cloud on 5th and 6th floors. demolition of (e) non-structural partitions non-compliant stair guardrails doors/frames/hardware. installation of new non-structural partitions stair guardrails doors/frames/hardware millwork ceilings finishes and all associated mep
Valuation:
$8,438,552
Permit #:
BD-2023-289802
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd fl ste 200a demolish of (e) non-structural interior partitions doors/frames/hardware ceilings finishes mechanical & electrical; construction of non-structural parititons; doors/frames/hardware millwork drywall and acoustic ceiling grid to support acoustical baffles new finishes mechanical
Valuation:
$425,000
Permit #:
202204051644
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
21/f: tenant improvement. new offices reception conference room open work stations new partitions - non load bearing storefronts ceilings millwork furniture power/data and mechanical electrical and plumbing work. no structural work
Valuation:
$2,839,105
Permit #:
202301301025
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Level 31-level 33; demolish only. ab017. no ceiling demolish until deffered sprinkler permit
Valuation:
$300,000
Permit #:
202506178910
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Level 1 2 3: new partition construction for mechanical shaffs & partial demolish of e) floors. new mechanical equipment ductwork at roof
Valuation:
$450,000
Permit #:
202509024370
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Level 5 - interior tenant improvement includes new non-load rearing partition ceilings finishes millwork a lighting mep included
Valuation:
$10,780,569
Permit #:
202503111984
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
All levels: interior non-structural demolish of walls doors and vertical curculation in the building. no ceiling work planned per ab-017
Valuation:
$190,000
Permit #:
202501228843
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
4th floor tenant improvement. demolish of portion of extg hi-density file cabinet storage are construction of an enclosed moot court. improvements include construction of new non-load bearing partitions doors electrical mechanical air distribution ceiling and lighting elements
Valuation:
$250,000
Permit #:
202204273149
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Level 5 - demolish (e) ceiling & finishes. minor alterations to (e) non structural partitions suspended ceiling 9n) millwork & finishes & (n) lighting. demolish previously under pa 202408098376
Valuation:
$4,000,000
Permit #:
202408309841
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
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Principal Builders Inc License info
Verified License
| License # | 829808 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Principal Builders Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
114
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Old Republic General Insurance Corporation |
326
Permits
- Building permit records show that Principal Builders Inc has worked on 326 permitted projects.
Principal Builders Inc Employees
BJ
Brandon John Jones
Ceo / President
JJ
Jon Michael Johnson
Rmo
MK
Mya Kelsey Krikorian
Officer
SR
Scott Robert Reay
Ceo / President