Updated: Jun 23, 2026
Location and Projects
Address
311 SEVENTH AVE # 1, San Mateo, CA, 94401
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Panko Architects
Panko Architects, 311 Seventh Ave, San Mateo, CA (Owned by: Panko Stanley Erwin) holds a Architect license and 4 other licenses 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 Panko Architects, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Panko Architects Services
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Panko Architects Contact Information
Phone Number: (650) 558-0100
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Address: 311 SEVENTH AVE # 1, San Mateo, CA 94401
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Panko Architects San Mateo
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Panko Architects has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Panko Architects has worked on at least
10.0 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
|
6 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Panko Architects mostly works on
home addition
projects.
Pricing
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
2 projects
|
$500k-$1mil |
The typical size of their permits is approximately $165,397. 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.
Addition to 1st floor and new 2nd floor of 868sf total. 1st floor addition of 196sf and remodel of 1 150sf addition basement area under first floor rear addition. 2nd floor addition of 672sf installation of solar panels at roof
Valuation:
$500,000
Permit #:
BD-2020-276180
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish (e) second story 45 sq ft. deck. construct (n) 262 sq ft 2nd floor deck and 185 sq ft 1st floor deck - and stair system. remove (e) windows on both floors and install (n) sliding glass doors for deck access
Valuation:
$84,072
Permit #:
BD-2025-296744
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition of 404sf and remodel of 135sf to include a bedroom bathroom family room. remove (e) deck and replace with a deck of 338sf. relocate passage door to garage & install (n) sewer line at the rear of house. truss calculations to be deferred. ep-2022-000865
Valuation:
$205,794
Permit #:
BD-2022-284418
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert detached garage and storage room of 1 351sf to an adu of 1 178sf (3 bedroom 2 bathroom living room kitchen great room); 84sf storage and 120 uncovered concrete patio. (n) on demand water heater (n) 125amp electrical panel (n) sewer lateral and m.e.p. *demo permit is under permit number bd-2020-277049.* revision 2 - revised plan to relocate on-demand water heater remove 2 heati... see more
Valuation:
$200,000
Permit #:
BD-2020-277046
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential addition alteration to existing residence
2024-04-03
Remodel 1st floor install stair to 2nd floor new windows throughout addition new 2nd floor with 3 baths skylight etc remove and replace exterior brick veneer at front elevation with stone veneer install (n) fire sprinkler system throughout under separate permit resub#1-rcc-6/6/24 response to building pln civil drainage and geo comments resub#2-rcc-8/5/24 response to building civil/dra... see more
Valuation:
N/A
Permit #:
BLD2024-00720
Status:
issued
Fee:
$22,135
Permit Type:
N/A
Building Type:
N/A
Total 313sf addition and 58sf alteration to (e) 1-story sfd: demolish (e) entry door and partial wall for addition to include (n) closet (n) bathroom and (n) porch and (n) entry area with (n) skylight. interior remodel to (e) bathroom remodel and linen closet to (n) bathroom. revision #1: install hydro floor heating (issued 6/13/22)
Valuation:
$80,000
Permit #:
BD-2019-274459
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 3 012 sq. ft. 2-story single family dwelling attached 542 sq.ft. adu 1397 deck 552 sq.ft. garage (revised desription osb 9/22/22) demolish existing single family dwelling (to be issued under a separate permit) building safety score: 2.77. fire sprinklers required resubmittal #1 - mpv - 12/15/20 - response to comments resubmittal #2 - jea - 07/14/2022 - response to comments bld2019... see more
Valuation:
N/A
Permit #:
BLD2019-01550
Status:
expired
Fee:
$27,375
Permit Type:
N/A
Building Type:
N/A
Addition remodel: adding 55 sq. ft. by converting side porch to bedroom 3. reconfigure bedrooms 2 & 3 to accommodate new laundry room between. remodel bathroom 2 and hallway. install new hall pantry closet. new bay window to dining room. relocate garage man door. relocate air conditioning unit. relocate sub panel. electrical in areas of work. resubmittal #1 - wcm - 12/27/21 - respons... see more
Valuation:
N/A
Permit #:
BLD2021-01272
Status:
final
Fee:
$5,039
Permit Type:
N/A
Building Type:
N/A
Adu: remodel (e) 1031sf detached garage and convert into a (n) detached accessory dwelling unit (637sf) and 1-car garage (394sf). adu to contain living room kitchen 1 bedroom and 1 bathroom. relocate sub panel install (n) tankless water heater and (n) furnace in attic. garage doors to be altered so that the vehicle can only enter from the back. revision #1: revised scope to delete ins... see more
Valuation:
$150,000
Permit #:
BD-2019-272019
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Total 1st floor addition and alteration to (e) 1-story sfd: 416sf addition to addition (1) new bedroom with closet (1) new master bedroom with (2) new skylight and (n) 150sf deck. convert bedroom into (n) master bathroom walk-in closet and den. relocate laundry room. reduce size of (e) bedroom to extend hall. total remodel 482sf. construct new 5 walkway in the frontyard. install new a... see more
Valuation:
$88,849
Permit #:
BD-2018-269025
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert existing 567sq. ft. loft area (permit #972601) which is on top floor of an existing detached garage to an accessory dwelling unit (adu). work to included new kitchen and new bathroom. install 40a service upgrade and replace (e) furnace with new 25k btu wall furnace
Valuation:
$36,719
Permit #:
BD-2020-275783
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolition of an existing non-permitted wood frame shed and carport of 1 000sf adu permit is under permit number bd-2020-277046
Valuation:
$10,000
Permit #:
BD-2020-277049
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Total 998sf alteration to (e) 1-story sfd: remodel of (e) living room to addition (1) bedroom and combine the remaining space of living room with the family room to create (n) great room. demolish 2 (e) fireplaces and install (n) direct vent gas fireplace. install (n) window and sliding patio door. remove (e) portion of flat roof & install new hip roof. replace (e) rear deck (400sf) a... see more
Valuation:
$70,630
Permit #:
BD-2018-266567
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement to replace (e) interior concrete slab to level floor at cabinet shop and storage area (1980 sf). infill wall to convert 1 tenant space to 2 tenant spaces. addition (n) nonbearing demising wall to create a new all-gender ada restroom with meps (81 sf) and a storage space (342 sf). addition (n) exterior accessible ramp and alter (e) exterior loading deck. exterior con... see more
Valuation:
$60,000
Permit #:
BD-2018-267517
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Legalize accessory structure of 399sf in rear yard (workshop hobby room with 1/2 bathroom) remove 300sf to unfinished/unpermitted accessory structure. revision 1: install (n) drain basin and sump pump with backflow preventer. alter roof framing of accessory structure. (issued 12/6/18). revision 2: install (n) window in place of proposed sliding glass door. (issued 1/29/19) revision 3:... see more
Valuation:
$200
Permit #:
BD-2017-264640
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd unit. remodel existing 294sf of bedroom to create 2nd unit bedroom and bathroom. addition 194sf for new kitchen and family room resubmittal #1 fak 5/18/18 brought in structural calcs title 24 resubmittal #2 dwm-5/31/18 c.3-c.6 for pln and pw
Valuation:
N/A
Permit #:
BLD2018-01025
Status:
canceled
Fee:
$5,961
Permit Type:
N/A
Building Type:
N/A
2-story single family dwelling addition and alteration: work includes convert (e) bathroom to storage room at 1st floor (34sf). addition 5sf to (e) bathroom and remodel 71sf master bathroom and create (2) new closet. total 5sf addition and 105sf alteration. *fire sprinkler not require.*
Valuation:
$60,000
Permit #:
BD-2017-265526
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish existing 1700 single family dwelling. plans taken in under case bld2019-01550 it is the permittee’s obligation and responsibility to ensure that all work associated with this permit complies with all current orders of the health officer of the county of san mateo related to the novel coronavirus disease 2019 (covid-19). the county of san mateo assumes no responsibility for wo... see more
Valuation:
N/A
Permit #:
BLD2019-02158
Status:
final
Fee:
$429
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition 136 sf at front of building to enlarge living room and bedroom. interior remodel 335 sf: addition (n) bathroom with skylight convert (e) bedroom to den. (n) gas wall heater. (n) sun tunnel in (e) bathroom. install (n) electrical sub-panel next to (n) lavatory. (n) exit door at den and bedroom. (n) sewer line. *fire sprinkler not requires.* revision #1: ... see more
Valuation:
$5,000
Permit #:
BD-2018-268087
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition 136 sf at front of building to enlarge living room and bedroom. interior remodel 335 sf: addition (n) bathroom with skylight convert (e) bedroom to den. (n) gas wall heater. (n) sun tunnel in (e) bathroom. install (n) electrical sub-panel next to (n) lavatory. (n) exit door at den and bedroom. (n) sewer line. *fire sprinkler not requires.* revision #1: ... see more
Valuation:
$5,000
Permit #:
BD-2018-268087
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Panko Architects License info
Verified License
| License # | C5474 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Panko Architects at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | C5474 |
| Status | Active |
| City | San Carlos |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of March, 2015. Check the current license status of Panko Architects with the The City of San Carlos, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | ARI-1794 |
| Status | Inactive |
| State | Oregon |
| Type | Architect Individual |
- According to the Oregon Board of Architect Examiners, 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 Panko Architects at the Oregon Board of Architect Examiners.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 4076 |
| Status | Inactive |
| State | Alabama |
| Type | Architect |
- According to the Alabama Board of Architects, 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 Panko Architects at the Alabama Board of Architects.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1794 |
| Status | Inactive |
| State | Oregon |
| Type | Architect |
- According to the Oregon Board of Architect Examiners, 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 Panko Architects at the Oregon Board of Architect Examiners.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
60
Permits
- Building permit records show that Panko Architects has worked on 60 permitted projects.
Panko Architects Employees
PA
Panko Architects
Owner
PE
Panko Stanley Erwin
Owner
SP
Stanley E Panko
Owner
SP
Stanley E. Panko
SP
Stanley E. Panko
Owner