Updated: Oct 02, 2025
Location and Projects
Address
547 S MARENGO AVE, Pasadena, CA, 91101
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Long William S Architect
Long William S, 547 S Marengo Ave, Pasadena, CA holds a Architect license according to the California license board.
Their BuildZoom score of 98 ranks in the top 16% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Long William S, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Long William S Services
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Long William S Contact Information
Address: 547 S MARENGO AVE, Pasadena, CA 91101
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Long William S Pasadena
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Long William S has a BuildZoom score of 98, which places them above 84% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Long William S has worked on at least
5.0 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
|
5 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Long William S mostly works on
home addition
projects.
Pricing
|
3 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $90,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Convert existing detached garage with addition to a detached adu per amc 12.22 a.33(b)(1) comply with department order effective date 04/06/2023. permit will expire 30 days from issuance date
Valuation:
$100,000
Permit #:
25014-10000-00717
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Proposed 2 story addition (15 x 29') and ground floor addition to rear of existing single family dwelling to extend existing kitchen and dining area. second story addition will create 2 bedrooms and 2 bathrooms
Valuation:
$240,000
Permit #:
18014-10000-05543
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan: 1st and 2nd story addition and remodel to (e) 2-story single family dwelling
Valuation:
$210,000
Permit #:
23014-10000-05400
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
**eplan** conversion of dettached garage storage and workshop at rear of the lot and ground floor addition to craeate new accessory dwelling unit per ca govt. code 65852.2(e)(1)(b) and applicable part of lamc 12.22 a.33 (c)-(d) (g) comply with department order effective date 09/13/2019. permit will expire 30 days from issuance date
Valuation:
$75,000
Permit #:
23014-10000-02715
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
2-story addition to existing single family dwelling
Valuation:
$295,000
Permit #:
18014-10000-03096
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Garage conversion to adu with 2-story addition per lamc 12.22 a33 (c)-(d)
Valuation:
$90,000
Permit #:
20016-10000-14574
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Demolition of (e) detached garage. handwreck only. two-car attached garage provided per 17014-10000-04611
Valuation:
$2,000
Permit #:
18019-10000-04168
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition partition walls for new 3/4 bathroom and closet at 2nd floor bedroom
Valuation:
$20,000
Permit #:
21016-10000-30106
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Commercial update accessible parking and access to building. update accessible signage
Valuation:
$150,000
Permit #:
B15-000-414
Status:
final
Fee:
$2,622
Permit Type:
B business
Building Type:
N/A
Exterior alterations to sfd: reframe front portion of roof to addition gable addition roof overhang over entry door replace 3 windows with larger addition new shearwalls. no change to building height
Valuation:
$15,000
Permit #:
17016-10000-15221
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition: 1st floor-addition to enlarge kitchen and kitchen remodel; addition second floor - addition new bedroom and convert (e) bedroom to w-i-c and hallway
Valuation:
$84,000
Permit #:
17014-10000-04850
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
For proposed room addition & full bathroom of 454 sf to (e) single family dwelling and carport. all work per engineering
Valuation:
$54,000
Permit #:
20014-10000-00680
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition 90 square feet to 1st floor and remodel existing 2-story single family dwelling
Valuation:
$90,000
Permit #:
15014-10000-00548
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(e-plan) unit 750 - tenant improvement of 1 015 sq ft suite and upgrade existing common bathrooms for accessibility
Valuation:
$30,000
Permit #:
BS2001857
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial low gen
Supplemental permit 18016-10000-41283 remove water damaged drywall and replace with new at interior of units 100 and 101 remove and replace water damaged roof rafters
Valuation:
$13,000
Permit #:
18016-10001-41283
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit to # 15014-10000-04506 to revise structural inventory to show as-build building height & roof access tower height of 27.62 and 33.45 respectively per the inspector's request. no fee. ( see comment. )
Valuation:
N/A
Permit #:
15014-10001-04506
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New structure/pool house in the rear of property with a (n) storage at the back of the structure
Valuation:
$35,400
Permit #:
18010-10000-00551
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Remodel pool and spa for pool cover and (n) steps all work per city standard plan 270
Valuation:
$50,000
Permit #:
16047-10000-00336
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Interior remodel to existing public pool restrooms to meet disable access compliance
Valuation:
$6,000
Permit #:
18016-10000-15213
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Remodel master bedroom area of existing single family dwelling
Valuation:
$38,000
Permit #:
18016-10000-08164
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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Verified License
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Long William S License info
Verified License
| License # | C26789 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Long William S at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
84
Permits
- Building permit records show that Long William S has worked on 84 permitted projects.
Long William S Employees
LS
Long William S
Owner