Updated: Dec 01, 2025
Location and Projects
Address
PO Box 154, Patterson, CA, 95363
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Grey Hawk Construction Incorporated Plumber
Grey Hawk Construction Incorporated at PO Box 154, Patterson, CA 95363, has a BuildZoom score of 104 and ranks in the top 9% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Grey Hawk Construction Incorporated Services
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Grey Hawk Construction Incorporated Contact Information
Phone Number: (510) 435-5490
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Address: PO Box 154, Patterson, CA 95363
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Grey Hawk Construction Incorporated Patterson
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grey Hawk Construction Incorporated has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.
Activity
|
9 projects
|
2025 |
|
6 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Grey Hawk Construction Incorporated has worked on at least
18.0 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
|
New Constructions |
|
4 projects
|
Plumbing projects |
|
3 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Grey Hawk Construction Incorporated mostly works on
new construction
and plumbing project
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $93,571. 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.
Building Permits by Grey Hawk Construction Incorporated
This is a sample of this contractor's permits. Click here to access their complete permit history.
Enclose area beneath the garage to adu
Valuation:
$200,000
Permit #:
ADU24-024
Status:
issued
Fee:
$4,858
Permit Type:
N/A
Building Type:
N/A
Building (n) 785 sqft detached adu
Valuation:
$358,486
Permit #:
BD25-0413
Status:
issued
Fee:
$11,493
Permit Type:
Adu - detached new
Building Type:
N/A
Construct a new detached approx.214sf open pergola that is mechanically operated at rear of new adu. pergola to have electrical. new paver patio and stairs under new pergola. adu on separate permit b22-2497
Valuation:
$27,470
Permit #:
B24-0504
Status:
final
Fee:
$1,530
Permit Type:
N/A
Building Type:
N/A
To construct 585 s.f. detached adu to rear of residence. creating 2bed/1bath unit
Valuation:
$96,917
Permit #:
BLD2025-00952
Status:
issued
Fee:
$10,223
Permit Type:
New accessory dwe...
Building Type:
N/A
Construct an approx. 743sqft detached adu to include bedroom bathroom kitchen new 100amp subpanel mini-split system and heat pump water heater ***field rev sub 1 8/2/24 - updated t24 report*** main house address: 7788 bernal ave adu address: 7790 bernal ave
Valuation:
$32,000
Permit #:
B22-2497
Status:
final
Fee:
$15,121
Permit Type:
N/A
Building Type:
N/A
New det a d u
Valuation:
$375,000
Permit #:
176544
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
648 sq ft detached adu
Valuation:
$107,354
Permit #:
ADU24-014
Status:
issued
Fee:
$4,611
Permit Type:
N/A
Building Type:
N/A
Residential new single family multi family manufactured detached adu
2022-10-04
Convert existing detached 2-car garage to adu 605 sqft and enlarge to also include 1-car garage with adu (addition 359 sqft) on-site contact: larry green (gc) 650-483-2961 resub #1 rxc 10/25/23 response to building pln civ
Valuation:
N/A
Permit #:
BLD2022-02372
Status:
issued
Fee:
$9,092
Permit Type:
N/A
Building Type:
N/A
New detached 748 sf adu
Valuation:
N/A
Permit #:
BIR23-007557
Status:
final
Fee:
$13,382
Permit Type:
N/A
Building Type:
N/A
Residential sewer lateral repair as per notice to repair
Valuation:
$3,000
Permit #:
B-049173
Status:
final
Fee:
$198
Permit Type:
Mv notice to repair
Building Type:
N/A
Detached 500 sf adu with 1 bedroom & 1 bathroom
Valuation:
$223,383
Permit #:
BIR22-002941
Status:
final
Fee:
$6,342
Permit Type:
N/A
Building Type:
N/A
Convert garage to 409sqft adu
Valuation:
$176,299
Permit #:
BLD2023-00106
Status:
final
Fee:
$12,529
Permit Type:
Second dwelling unit
Building Type:
N/A
784 sq ft detached adu with attached covered patio **1.77 kw photovoltaic system required to be installed per title 24 report** **7/30/24 revision to addition a 1 overhang at the front of the covered patio to match the overhang on the rest of the house and change electric water heater and electric range to a gas water heater and gas range. per revised title 24 report a 2.8 kw photovol... see more
Valuation:
N/A
Permit #:
BIR24-000795
Status:
issued
Fee:
$4,245
Permit Type:
N/A
Building Type:
N/A
Upgrading 100amp panel to 200amp panel
Valuation:
$5,000
Permit #:
BLD2026-02765
Status:
issued
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
200amp upgrade electrical panel w 2 meters
Valuation:
$5,000
Permit #:
BD25-1073
Status:
issued
Fee:
$489
Permit Type:
N/A
Building Type:
N/A
New adu detached 749 sf
Valuation:
N/A
Permit #:
BLD24-0724
Status:
final
Fee:
$5,199
Permit Type:
N/A
Building Type:
N/A
Property line cleanout and lower lateral
Valuation:
N/A
Permit #:
TE2024-0176
Status:
final
Fee:
$600
Permit Type:
Sewer lateral in ...
Building Type:
N/A
Drainage through curb
Valuation:
N/A
Permit #:
PW25-0307
Status:
issued
Fee:
$1,274
Permit Type:
Concrete
Building Type:
N/A
Lower lateral and cleanout
Valuation:
N/A
Permit #:
SEW2024-00021
Status:
issued
Fee:
$879
Permit Type:
Lower
Building Type:
N/A
Residential - new detached adu
Valuation:
N/A
Permit #:
B-044549
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Grey Hawk Construction Incorporated Reviews
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Grey Hawk Construction Incorporated License info
License Not Required
| Status | Not Required |
- BuildZoom verified in December, 2023 that this contractor does not need a license to be a plumber in California.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
17
Permits
- Building permit records show that Grey Hawk Construction Incorporated has worked on 17 permitted projects.