Updated: Apr 10, 2026
Location and Projects
Address
1139 S CENTRAL PARKWAY, Mountain House, CA, 95391
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KS Constructions
KS Constructions, 1139 S Central Pkwy, Mountain House, CA (Employees: Ajay Singh, Ajay Singh, and Kenneth Eugene Slama) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 109 ranks in the top 5% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring KS Constructions, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
KS Constructions Services
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KS Constructions Contact Information
Phone Number: (831) 261-8484
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Address: 1139 S CENTRAL PARKWAY, Mountain House, CA 95391
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KS Constructions Mountain House
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
KS Constructions has a BuildZoom score of 109, which places them above 95% of 336,931 contractors in California.
Activity
|
15 projects
|
2025 |
|
12 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that KS Constructions has worked on at least
36.0 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
|
10 projects
|
Home Additions |
|
4 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that KS Constructions mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
1 project
|
< $5k |
|
3 projects
|
$20k-$50k |
|
3 projects
|
$100k-$250k |
The typical size of their permits is approximately $150,000. 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.
Addition of 998 sf to construct a 2-story 3 bed 2.5 bathroom attached adu. see bld2025-02683 for shared plan set of main house addition
Valuation:
$195,000
Permit #:
BLD2025-02866
Status:
issued
Fee:
$9,546
Permit Type:
New accessory dwe...
Building Type:
N/A
New building addition adu (not a garage conversion) deck patio cover garage barn ground mount solar
2024-07-08
New detached adu consist of 3 bedrooms - 2 bathrooms
Valuation:
$25,000
Permit #:
CBNR2024-00699
Status:
triage
Fee:
$11,053
Permit Type:
N/A
Building Type:
N/A
Converting front two room into jadu with complete kitchen laundry bathroom and bedroom. 440 sq ft
Valuation:
N/A
Permit #:
B25-1585
Status:
complete
Fee:
$523
Permit Type:
Na
Building Type:
N/A
New building addition adu (not a garage conversion) deck patio cover garage barn ground mount solar
2024-07-08
New detached adu. consist of 3 bedrooms - 2 bathrooms
Valuation:
$25,000
Permit #:
CBNR2024-00698
Status:
triage
Fee:
$10,452
Permit Type:
N/A
Building Type:
N/A
New building addition adu (not a garage conversion) deck patio cover garage barn ground mount solar
2024-07-01
Construct a 2 story duplex each unit of the duplex will consist of 3 bedrooms 2 &1/2 bathrooms and an office
Valuation:
$500,000
Permit #:
CBNR2024-00678
Status:
triage
Fee:
$66,606
Permit Type:
N/A
Building Type:
N/A
Construct a 440 sqft addition with (2) bedrooms above the existing garage ***field revision 12/29/2022 corrected existing floor plan sqft to 1056sqft and corrected addition sqft to 527sqft***
Valuation:
$159,000
Permit #:
B22-1781
Status:
final
Fee:
$5,728
Permit Type:
N/A
Building Type:
N/A
Inspector want to get the details for the connection of the main house to the new addition. attached detail and letter is from the eoj detailing the same
Valuation:
N/A
Permit #:
BLD2022-08105-001
Status:
triage
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
***includes new mpu*** photovoltiac - contractor shall be present at time of inspection - call 209-723-2489 **pv comments sheets attached to front of plans & shall be considered part of plans. do not cover mechanical or plumbing vents with solar panels. contractor shall provide job site access & a secure ladder with a minimum of 3 rungs above roof line. inspection times 8-12 1-4 m-f p... see more
Valuation:
$27,000
Permit #:
21-00000925
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Attached adu 602 sq.ft (conversion of existing guest living/guest suite flex room and bathroom to adu).converting the front portion of the house into a one bedroom adu. (tying into existing utilities no photovoltaic fs permits) (situs address 3309 orso grande st)
Valuation:
N/A
Permit #:
B25-2813
Status:
issued
Fee:
$327
Permit Type:
Na
Building Type:
N/A
Photovoltaic solar 8.1kw dc 20 modules + (n)10kwh ess battery + (n)200a subpanel (not part of solar energy system)
Valuation:
$24,000
Permit #:
BLDG-2023-01099
Status:
final
Fee:
$630
Permit Type:
N/A
Building Type:
N/A
New 2nd floor adu above e garage including 1 bedroom 1 bathroom living room stairs landing relocate e roof mount photovoltaic to new roof
Valuation:
N/A
Permit #:
BP-2401138
Status:
expired
Fee:
$2,846
Permit Type:
N/A
Building Type:
N/A
Enclose (e) porch and convert (e) single car garage to unconditioned game room w/electrical for lights & plugs at single family residence
Valuation:
N/A
Permit #:
RES-ADD-BP-2402592
Status:
complete
Fee:
$720
Permit Type:
N/A
Building Type:
N/A
New 2nd story addition of 600 sf for a second floor adu (2bed/1bath). for primary house addition see bld2023-02510
Valuation:
$200,000
Permit #:
BLD2022-08105
Status:
issued
Fee:
$8,278
Permit Type:
N/A
Building Type:
N/A
Converting portion of the house to jadu 440 sq. ft. with its own separate entrance. (no fs or pv) also need a separate address. no main dwelling access
Valuation:
N/A
Permit #:
B25-2508
Status:
complete
Fee:
$420
Permit Type:
Na
Building Type:
N/A
Detached adu 680 sqft w photovoltaic 3.28kw (8) mods
Valuation:
N/A
Permit #:
B24-1122
Status:
complete
Fee:
$3,418
Permit Type:
Na
Building Type:
N/A
Addition of 790 sf for a two story bedroom and bathroom addition to create a 5 bed 4 bathroom residence. alteration of 250 sf to create a hallway into the new addition. see bld2025-02866 for shared planset for attached adu
Valuation:
$145,000
Permit #:
BLD2025-02683
Status:
issued
Fee:
$9,291
Permit Type:
Addition
Building Type:
N/A
Addition of 600 sf for new master bedroom and bathroom extend hallway. for attached 2nd floor adu see bld2022-08105
Valuation:
$150,000
Permit #:
BLD2023-02510
Status:
issued
Fee:
$4,565
Permit Type:
N/A
Building Type:
N/A
Converting guest suit to a jadu - 440 sqft
Valuation:
N/A
Permit #:
B25-0149
Status:
complete
Fee:
$367
Permit Type:
Na
Building Type:
N/A
Converting guest suit to a jadu - 440 sqft
Valuation:
N/A
Permit #:
B25-0148
Status:
complete
Fee:
$367
Permit Type:
Na
Building Type:
N/A
Detached adu including 3 bedrooms 3 bathrooms living room covered porch patio roof mount solar photovoltaic
Valuation:
N/A
Permit #:
BP-2400981
Status:
complete
Fee:
$5,843
Permit Type:
N/A
Building Type:
N/A
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KS Constructions Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
KS Constructions License info
Verified License
| License # | 955547 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for KS Constructions at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 757286 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 KS Constructions at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
64
Permits
- Building permit records show that KS Constructions has worked on 64 permitted projects.
KS Constructions Employees
AS
Ajay Singh
Sole Owner
AS
Ajay Singh
Sole Owner
KS
Kenneth Eugene Slama
Sole Owner