Updated: May 05, 2026
Location and Projects
Address
2173 FRANCISCO BLVD E SUITE H, San Rafael, CA, 94901
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Plath & Company Construction
Plath & Company is dedicated to building and renovating fine homes and historic structures of uncompromising quality and enduring value. For 40 years, we have focused on our core values of excellence in all that we do, collaboration centered on a common goal, safety for all associates, and the time-honored tradition of customer satisfaction.
We’re equally as dedicated to creating positive experiences for our clients and coworkers, and in the process have earned their trust and loyalty. We achieve this with straightforward teamwork, transparent business practices, and proactive problem solving.
From BuildZoom: Plath & Company Inc, 2173 Francisco Blvd E, San Rafael, CA (Owned by: John Ferrarone) holds a B General Building license and 3 other licenses according to the Nevada license board.
Their BuildZoom score of 114 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Plath & Company Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Plath & Company Inc Services
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Plath & Company Inc Contact Information
Phone Number: (415) 264-1514
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Address: 2173 FRANCISCO BLVD E SUITE H, San Rafael, CA 94901
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Plath & Company Inc San Rafael
Quality
114
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Plath & Company Inc has a BuildZoom score of 114, which places them above 98% of 336,931 contractors in California.
Activity
|
6 projects
|
2025 |
|
6 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that Plath & Company Inc has worked on at least
21.0 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
|
7 projects
|
Home Additions |
|
3 projects
|
New Constructions |
|
3 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Plath & Company Inc mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
4 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
|
2 projects
|
$1mil+ |
The typical size of their permits is approximately $20,552. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior remodel of a two unit building. all new exterior windows and doors will be energy-efficient models. some windows and doors locations will be modified. guards at bbalconies will be replaced
Valuation:
$600,000
Permit #:
202408027881
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Residential: full review - new home - greater than 3 000 sq ft or above 5 000 ft elevation
2021-04-25
Vol 3rd party plan check = apex single family dwelling garage covered deck guest house/adu permit bld21-00633 in-ground pool/spa not included; separate permit required living-------------------------------7 925sf garage & storage----------1 769sf covered terraces---------2 776sf uncovered terraces-----2 734sf 7 bedrooms 7.5 bathrooms golf simulator room special inspection required str... see more
Valuation:
$1,650,539
Permit #:
BLD21-00609
Status:
issued
Fee:
$29,443
Permit Type:
New
Building Type:
N/A
1. install 1600 sf of wood flooring at existing location 2. replace in kind all kitchen finishes 3. aesthetic ceiling modifications 4. minor framing structural work to accomadate ceiling modifications 5. addition of 30 length grade beam and 8 depth 16 diameter pier 6. replace electrical can fixtures through out 7. no exterior work 8. no added square footage
Valuation:
$225,000
Permit #:
BISUB23-00430
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior remodel. new wood flooring replace in kind all kitchen finishes ceiling modifications addition of 30 length beak and 8 depth 16 dia. pier replace electrical can fixtures throughout **04/27/23 structural revision**
Valuation:
$225,000
Permit #:
BIAL23-003077
Status:
final
Fee:
$5,882
Permit Type:
N/A
Building Type:
N/A
Alter site pa 201907267098 minnor exterior modifications. adjust window layout at 2 story bay: widen to 15 change rouned corners. bay @ front changed from angled to rounded. 3rd stor @ east end front wall pulled in from roof edge above exterior recess created.rear facaded angled corners changed to
Valuation:
$16,600
Permit #:
202403147869
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Work includes new vehicle driveway gate pedestrian landscape gates and water feature assembly only. (the main residence and all other associated work have been permitted under bld2022-02534). project valuation was previously included in bld2022-02534
Valuation:
N/A
Permit #:
BLD2024-02612
Status:
final
Fee:
$1,325
Permit Type:
New construction
Building Type:
N/A
Revision to 202208311657 to comply with notice of correction. work includes demolish and rebuild of west pl wall. existinng wall encroaches on neighbor property. rebuild of west property line wall shall be of 1-hour fire-rated construction
Valuation:
$20,000
Permit #:
202402296786
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2021-04-25
Vol 3rd party plan check = apex guest house main house permit #bld21-00609 living---------------1 198sf special inspection required structural observation required
Valuation:
$216,550
Permit #:
BLD21-00633
Status:
issued
Fee:
$4,175
Permit Type:
Accessory
Building Type:
N/A
Building/residential/mir/miscellaneous residential
2023-07-18
Remodel existing deck and addition 120ft of new deck remove and building new arbor and pool. new fire pit flat work and planting. proposed totals 1, 637 sq ft. all documents will be on this permit. pool remodel will be on permit # bip23-008585 per bill mcginnis gc with plath & co the landscape arbor is no longer part of the scope of this permit. bw 08.01.23
Valuation:
$50,000
Permit #:
BIMIR23-008580
Status:
final
Fee:
$4,202
Permit Type:
N/A
Building Type:
N/A
New detached pergola accessory structure and site walls with an outdoor shower
Valuation:
$280,000
Permit #:
BLD2023-01549
Status:
final
Fee:
$4,942
Permit Type:
New construction
Building Type:
N/A
New 575 sq.ft. concrete-and-wood walled (unroofed) detached mechanical equipment enclosure for single-family residence. gate and fence will be on a separate permit revision #1: revision includes replacement of two drawing sheets to resolve discrepancy in detail drawing references. no change to scope. revised sheet s1 & s2
Valuation:
$75,000
Permit #:
BLD2024-01011
Status:
final
Fee:
$3,426
Permit Type:
New construction
Building Type:
N/A
Horizontal and vertical addition. interior renovations on all floors. new decks and facade alterations
Valuation:
$1,800,000
Permit #:
202208311657
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Repair less than 50% of deck replace in kind 25 windows 3 doors new finishes and flooring throw out- custom wood window in kind to match existing. to be curved sashed top floor window dividers to remain. some windows visible from street
Valuation:
$150,000
Permit #:
202108267195
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Rev to pa 202103126481: replace w/h on 1/f new heat pump; opening between pantry & kitchen on 2/f; 4/f: remove walls & addition a new beam @ family room remove walls and addition beam @ office. 4th fl office relocate walls (n) framing under (e) roof
Valuation:
$20,000
Permit #:
202106293453
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
To erect a 3-story type 5 single family building w 2 basements. comply to maher ord# 155-13 route to dph
Valuation:
$2,000,000
Permit #:
201907267098
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
New rear yard patio and fence along northern edge of property. no interior work
Valuation:
$180,000
Permit #:
202504255210
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Voluntary strengthening. interior remodel of 1st floor rooms. guest bathrooms guest sitting room. mechanical room & mudroom. interior remodel of 3rd floor rooms. master bathroom master closet & bedroom foyer. ground floor addition 1 bedroom & 1/2 bathroom
Valuation:
$300,000
Permit #:
201711143923
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Addendum revision to 201907267098-s1. se & sw corners of rear yard se corner: relocation one of solid pier/reconfig of retaining wall reconfig of low landscaping wall. sw corner: reconfig of top landscaping & steps dow to landing
Valuation:
$8,000
Permit #:
202309076080
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
New residential swimming pool
Valuation:
$1,220,000
Permit #:
BPA2023-00126
Status:
filed
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Kitchen remodel in kind. reface 3 fireplaces new cabinets office hall rec room shoe rooms new floor finishes throughout. remodel 3.5 baths in kind. new shelfing in office. rec room shoe room new base and finish trim throughout
Valuation:
$150,000
Permit #:
202007200499
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
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Plath & Company Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Plath & Company Inc License info
Verified License
| License # | 0087550 |
| Status | Active |
| State | Nevada |
| Type | B General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Plath & Company Inc at the Nevada State Contractors Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 395458 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Plath & Company 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 # | RCE-61568 |
| Status | Inactive |
| State | Idaho |
| Type | General Contractor Registration |
| Business Type | Corporation |
- According to the State of Idaho Bureau Of Occupational Licenses, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Plath & Company Inc at the State of Idaho Bureau Of Occupational Licenses.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 323039 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Plath & Company 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 | Travelers Property Casualty Company Of America |
285
Permits
- Building permit records show that Plath & Company Inc has worked on 285 permitted projects.
Plath & Company Inc Employees
FB
Ferrarone, John Bartholomew
President
JF
John Bartholomew Ferrarone
Rmo
JF
John Ferrarone
Owner
MT
Marquis, Anne Theresa
Treasurer
SP
Stephen Charles Plath
Rmo/Ceo/Pres