Updated: Nov 20, 2025
Location and Projects
Address
Johns Island, SC, 00000
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Cornerstone Estates Construction
Based on Johns Island, South Carolina, Cornerstone Estates focuses on residential development in the greater Charleston area. The company specializes in custom home construction, drawing from local architectural styles and coastal influences tailored to Lowcountry settings. Cornerstone Estates manages every stage of the homebuilding process, including site selection, design coordination, and construction, offering clients a streamlined approach to creating new homes. Their portfolio features single-family custom homes that incorporate elevated foundations, high-quality roofing systems, and open floor plans suited to the region’s climate and lifestyle. Serving clients throughout Johns Island and neighboring communities, Cornerstone Estates emphasizes collaborative planning and clear communication with homeowners. With four years of experience, their projects highlight an understanding of coastal building requirements unique to South Carolina’s barrier islands.
Cornerstone Estates Services
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Cornerstone Estates Contact Information
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Cornerstone Estates Johns Island
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cornerstone Estates has a BuildZoom score of 103, which places them above 90% of 79,084 contractors in South Carolina.
Activity
|
7 projects
|
2025 |
|
6 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Cornerstone Estates has worked on at least
17.0 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
|
8 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Cornerstone Estates mostly works on
new construction
projects.
Pricing
|
6 projects
|
< $5k |
|
6 projects
|
$5k-$20k |
|
6 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
7 projects
|
$1mil+ |
The typical size of their permits is approximately $30,000. 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.
Install a 4 ton(main floor) 3 ton (2nd floor) and 2 ton (rec room) split heat pump complete system to include ductwork and (1) 100 pint dehumidifier in garage vent out bathroom fans hood and dryers***dehumidifier needs to be at least 4 feet above the garage slab per mo***
Valuation:
$64,000
Permit #:
MECR-05-25-16209
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
--rough in and trim out (1) toilet; rough in and trim out (1) single vanity ; rough in and trim out (1) shower; rough in and trim out (1) dishwasher; rough in and trim out (1) ice maker box; rough in and trim out (1) kitchen sink with garbage disposal ***amend 07.22.25 total of 34 fixtures: 5 toilets 5 vanities; 5 showers or tub/showers; dishwasher; icemaker; sink with garbage dis.; u... see more
Valuation:
$49,023
Permit #:
PLMR-02-25-10728
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1st floor main area: install a new amana 2.5 ton 15.3 seer2 series complete split heat pump system; master bedroom and 2nd floor room 4 and overlook area; install a new amana 2.5 ton 15.3 seer2 series complete split heat pump system with zone system; upstairs rooms 2 and 3 install a new amana 2 ton 15.3 seer2 series complete split heat pump system
Valuation:
$48,000
Permit #:
MECR-01-24-13175
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1st floor main area: install a new amana 2.5 ton 15.3 seer2 series complete split heat pump system; master bedroom and 2nd floor room 4 and overlook area; install a new amana 2.5 ton 15.3 seer2 series complete split heat pump system with zone system; upstairs rooms 2 and 3 install a new amana 2 ton 15.3 seer2 series complete split heat pump system
Valuation:
$48,000
Permit #:
MECR-01-24-13175
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New construction of single family residence with attached garage - contractor subbing out all work except stucco. drywall trim closet systems painting shelving garage doors tile & electrical
Valuation:
$1,490,000
Permit #:
BLDR-05-23-24124
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sub permit carpentry light gage metal residential
2025-01-02
-24124; 3556 seaview drive; supply & install treated and screen porch package; (“treated” on this trade permit includes grapa decking on front porch louvers in various locations around the house/garage hvac stand columns on front and rear porches and a screen porch system.)
Valuation:
$31,059
Permit #:
SUBR-08-24-27545
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family res- contractor subbingout all work except closet systems & shelving - specialty package
Valuation:
$1,600,000
Permit #:
BLDR-05-24-28048
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family res- contractor subbingout all work except closet systems & shelving - specialty package
Valuation:
$1,600,000
Permit #:
BLDR-05-24-28048
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tosi zp approved - cons - 16634 - new residential home building - contractor subbing out work and major trades (g p m-hvac m-firebox an e) except closet systems and shelving - *specialty package obtained*
Valuation:
$2,553,617
Permit #:
BLDR-08-25-32620
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Seabrook zp#55032 - new sfr-subbing everything except drywall trim closets paint shelving garage doors tile and electric
Valuation:
$1,359,338
Permit #:
BLDR-03-23-23335
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New house plumbing with (21) fixtures (7) lavatories (5) toilets (2) tubs (3) showers (1) kitchen sink (1) laundry sink (1) laundry (1) water heater
Valuation:
$25,000
Permit #:
PLMR-09-25-11594
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Sub permit carpentry light gage metal residential
2025-05-15
Hardie siding trim windows and door louvers handrails stairs
Valuation:
$84,049
Permit #:
SUBR-05-25-30828
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family permit - contractor subbing out all work except shelving closet systems & electrical - specialty package
Valuation:
$2,500,000
Permit #:
BLDR-11-24-29862
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Seabrook zp#57157-install new 26kw generator. approved by the arc and tosi
Valuation:
$18,000
Permit #:
ELCR-02-25-22340
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bury 500ug connect to stub out
Valuation:
$6,247
Permit #:
GASR-02-24-08324
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct a new single family residence. - contractor subbingout work except electrical tile garage doors shelving painting trim drywall & stucco
Valuation:
$1,950,000
Permit #:
BLDR-07-23-24736
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New gas system with (6) gas fixtures (2) tankless water heater (1) range (1) grill (1) pool (1) fireplace
Valuation:
$5,000
Permit #:
GASR-09-25-10574
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Block work footing and slab & elevated slab
Valuation:
$128,200
Permit #:
SUBR-09-25-31984
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Si#57150: install a generator on a slab above dfe
Valuation:
$18,000
Permit #:
ELCR-03-25-22489
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sub permit carpentry light gage metal residential
2025-03-18
Framing
Valuation:
$88,000
Permit #:
SUBR-03-25-30181
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Cornerstone Estates Reviews
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Cornerstone Estates License info
License Not Required
| Status | Not Required |
- BuildZoom verified in August, 2023 that this contractor does not need a license to be a contractor in South Carolina.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
11
Permits
- Building permit records show that Cornerstone Estates has worked on 11 permitted projects.