Updated: Apr 17, 2026
Location and Projects
Address
122 N GRAMERCY PLACE, Los Angeles, CA, 90004
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Sin John P Construction
Serving clients across Los Angeles, Sin John P focuses on a variety of residential projects evident in the firm’s established portfolio. With six years of experience, this contractor manages a range of building and renovation work in the region, including single-family home improvements and alterations. Permit records indicate repeated involvement in interior remodeling, as well as additions and major structural modifications. Sin John P’s operations center on the city of Los Angeles, working with homeowners throughout the area on projects that include room expansions and reconfigurations. The company’s experience navigating local permitting suggests a strong familiarity with municipal building codes and requirements specific to Los Angeles residential construction.
Sin John P Services
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Sin John P Contact Information
Phone Number: (818) 245-0190
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Address: 122 N GRAMERCY PLACE, Los Angeles, CA 90004
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Sin John P Los Angeles
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sin John P has a BuildZoom score of 109, which places them above 95% of 336,931 contractors in California.
Activity
|
30 projects
|
2025 |
|
33 projects
|
2024 |
|
34 projects
|
2023 |
Our building permit records indicate that Sin John P has worked on at least
97.0 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
|
40 projects
|
Home Additions |
|
10 projects
|
New Constructions |
|
15 projects
|
Multi-room remodels |
|
12 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Sin John P mostly works on
home addition
and multi-room remodel
projects.
Pricing
|
10 projects
|
< $5k |
|
8 projects
|
$5k-$20k |
|
20 projects
|
$20k-$50k |
|
23 projects
|
$50k-$100k |
|
13 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Eplan: exterior/interior alteration to (e) single family dwelling. exterior alterations including alterations to exterior openings for new and resized windows and doors. and replace exterior siding. interior alteration including alterations to interior partitions and reconfigure layout. work per engineered design
Valuation:
$10,000
Permit #:
25016-20000-07908
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New 2-story irregular shaped detached 2nd dwelling unit per sb9-two unit development with attached 2-car garage per engineering. nfpa-13d fire sprinkler thru-out
Valuation:
$148,000
Permit #:
25010-20000-01058
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan: supplemental permit to permit # 24014-20000-00694 to increase extent of remodel scope and increase size of second story addition to 34'-2-1/2 x 20'-5-1/2 irregular shape all work per engineering
Valuation:
$30,000
Permit #:
24014-20001-00694
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Major remodel to (e) single family dwelling with additions and conversion of (e) attached carport into a garage per engineering. nfpa-13d fire sprinkler thru-out
Valuation:
$200,000
Permit #:
25014-20000-02539
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to 25014-20000-01237 to include 44'-9 x 6'-6 addition at rear of dwelling and additional remodeling. scope of work to include an increase in height in living room area (nfpa-13d fire sprinklered throuhgout)
Valuation:
$35,000
Permit #:
25014-20001-01237
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Remove all int. and extension. walls except for some of (e) attach. garage walls and erect an irr. shaped 51'-1 x 67 two-story single family dwelling w attach. 2-car garage and open trellis; nfpa-13d thru-out
Valuation:
$350,000
Permit #:
23014-20000-02019
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Convert (e) detached garage into accessory dwelling unit with irr shaped 31'-8 x 15'-1 addition per lamc 12.22a.33(b)(1). all work per eng
Valuation:
$80,000
Permit #:
25014-20000-00304
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
[eplan] convert (e) garage with new addition to adu per ca govt. code65852.2(e)(1)(b) and applicable part of lamc 12.22 a.33 (c)-(d) (g)
Valuation:
$300,000
Permit #:
24014-10000-05373
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Convert 3'-8 x 6'-2 portion of (e) single family dwelling to enlarge garage and remodel to (e) 2-story single family dwelling. all work per engineering
Valuation:
$50,000
Permit #:
25016-20000-07265
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan: major remodel to existing 1-story single family dwelling. convert portion of garage to habitable area. addition (21'-2.5 x 5'-8") to garage and addition of (23'-7.5 x 21'-2.5 irregular shape) second story. nfpa 13d fire sprinklers throughout. comply with department order effective date 02/10/2023. permit will expire 30 days from issuance date
Valuation:
$110,000
Permit #:
24014-20000-00694
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan (e) detached garage conversion to state adu with addtion per gcs 66323(a)(2) and. sq ft lundry room for (e) single family dwelling comply with department order effective date 04/25/2024. permit will expire 30 days from issuance date. see b25vn09160 plan check only
Valuation:
$50,000
Permit #:
24016-20000-29059
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan ground and upper level remodel of existing 2-story residence to include ground floor passover kitchen. all windows and exterior doors to be replaced (entry door to remain) exterior non-structural plaster trim to be removed. new skylight replace (e) two windows with two new entry doors with new landing at front. no sqft added
Valuation:
$164,750
Permit #:
23016-10000-30777
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
*no fee department error *supplemental permit to 23014-20000-04469 to revise structures inventory change building width from 48 3 to 51 7 and stories from 2 to 1
Valuation:
N/A
Permit #:
23014-20002-04469
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition and major remodel to existing 1-story single family dwelling only 19 1 on south east portion of the lot and 27 1 on north east portion of the lot of exterior wall and foundation to remain. rebuilt as 1-story (78 x 48 3 irregular shaped) single family dwelling attached garage and attached accessory dwelling unit per lamc 12.22 a.33 (c) and (e). nfpa 13d fire sprinklers through... see more
Valuation:
$250,000
Permit #:
23014-20000-04469
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
34'-0 x 27'-6 irregular shaped addition at 1st fl 23'-0 x 27'-6 addition at 2nd fl and convert 17'-0 x 19'-0 portion of (e) 4 car garage to new accessory dwelling unit w roof deck & patio per lamc 12.22 a.33(c) and (d)
Valuation:
$94,000
Permit #:
20014-20000-00903
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
14'-1 x 26'-4 covered patio addition with 20'-1 x 20'-9 10'-0 x 26'-4 and 6'-8 x 17'-1 additions with remodel to the existing single family dwelling
Valuation:
$90,000
Permit #:
25014-20000-01237
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Interior remodel to the (e) single family dwelling kitchen living room dining room and bathroom with window change out. comply with department order effective date 11/12/2024. permit will expire 30 days from issuance date
Valuation:
$50,000
Permit #:
24016-20000-38080
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan 1st and 2nd floor addition to (e) detached garage to be converted into adu per lamc 12.22 a.33(c) and (d)
Valuation:
$120,000
Permit #:
23014-10000-00776
Status:
applied
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
*eplan* supplemental to # 20014-20000-04769 to revise scope of work: 2nd floor addition for adu above garage & convert existing attached garage to jr adu at existing 1-story single family dwelling. remodel & addition per main permit to remain as is. change of eor. revise structural inventory
Valuation:
$65,000
Permit #:
23016-20000-12009
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan. addition support beams and steel post to existing damaged balcony @ 2nd and 3rd floor. units #16 17 and 18 ; replace (e) damaged wood guardrail @ 2nd and 3rd floor
Valuation:
$20,000
Permit #:
25016-10000-14149
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Sin John P License info
Verified License
| License # | 1084298 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Sin John P at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Required
| Status | Not Required |
- BuildZoom verified in June, 2021 that this contractor does not need a license to be a contractor in California.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
136
Permits
- Building permit records show that Sin John P has worked on 136 permitted projects.
Sin John P Employees
JS
John Paul Sin
Sole Owner