Updated: Jul 22, 2026
Location and Projects
Address
20371 Lake Forest Dr A 9, Lake Forest, CA, 92630
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SQ. 1 Construction, Inc. #1055293 Photos
SQ. 1 Construction, Inc. #1055293
We are a small General Contractor primarily focused on retail tenant improvements. Our family has been in the construction industry since 1945. We started out as a residential construction company in Erie, Pa. in 1945. I took over the company in 2019. I changed the name from Lindsley Construction Company to Sq. 1 Construction, Inc.
From BuildZoom:
Their BuildZoom score of 110 ranks in the top 4% of 336,931 California licensed contractors.
If you are thinking of hiring SQ. 1 Construction, Inc. #1055293, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
SQ. 1 Construction, Inc. #1055293 Services
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SQ. 1 Construction, Inc. #1055293 Contact Information
Phone Number: (949) 768-8983
Address: 20371 Lake Forest Dr A 9, Lake Forest, CA 92630
SQ. 1 Construction, Inc. #1055293 Lake Forest
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
SQ. 1 Construction, Inc. #1055293 has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that SQ. 1 Construction, Inc. #1055293 has worked on at least
2.0 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.
Pricing
|
1 project
|
$100k-$250k |
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.
SQ. 1 Construction, Inc. #1055293 Reviews
5 out of 5 stars, based on
1
review
-
By Alexander S.September 23, 2024tenat improvement
Building Permits by SQ. 1 Construction, Inc. #1055293
This is a sample of this contractor's permits. Click here to access their complete permit history.
New ground up shops building.
Valuation:
$1,446,515
Permit #:
2019-0763
Status:
open/active
Fee:
N/A
Permit Type:
New Construction
Building Type:
Retail
New ground up shops building
Valuation:
$1,446,515
Permit #:
2019-0762
Status:
open/active
Fee:
N/A
Permit Type:
New Construction
Building Type:
Retail
New ground up pad building.
Valuation:
$1,194,655
Permit #:
BLD-2019-0761
Status:
active/open
Fee:
N/A
Permit Type:
New Construction
Building Type:
Retail
Ada & park lot upgrd for future tenant 1000amp panel
Valuation:
N/A
Permit #:
B21-03074
Status:
final
Fee:
$22,809
Permit Type:
N/A
Building Type:
N/A
Tenant improvement. (4 884 sf) for acta laboratories - demolish interior partitions doors ceiling plumbing & lighting fixtures skylights and exist. ada parking stall ramp. proposed new offices & laboratory - new non-bearing partitions create new laboratory work spaces new breakroom new open work area new storage room upgrade women's restroom for ada relocate roof access ladder & roof ... see more
Valuation:
$150,000
Permit #:
COMB-09-21-49212
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement. - hot sauces n more - new restrooms office prep room storage and sales area. new t-bar ceiling and lights. hvac distribution plumbing fixtures electrical panel and outlets. fencing for display area. replace single entry door with a double entry door (new tenant in a shell building)
Valuation:
N/A
Permit #:
B20-1688
Status:
complete
Fee:
$9,241
Permit Type:
Tenant improvemen...
Building Type:
N/A
Ten imp - landlord facade work: modify facade for (2) existing tenant retail spaces
Valuation:
$250,000
Permit #:
BLD21-02958
Status:
complete
Fee:
$10,508
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - landlord facade work: modify facade of (2) existing retail spaces
Valuation:
$250,000
Permit #:
PLM21-01241
Status:
final
Fee:
$273
Permit Type:
N/A
Building Type:
N/A
Ten imp - landlord facade work: modify facade for (2) existing tenant retail spaces
Valuation:
$250,000
Permit #:
ELE21-02243
Status:
complete
Fee:
$47
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - landlord facade work: modify facade of (2) existing retail spaces
Valuation:
$250,000
Permit #:
ELE21-02238
Status:
complete
Fee:
$47
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - landlord facade work: modify facade of (2) existing retail spaces
Valuation:
$250,000
Permit #:
BLD21-02957
Status:
final
Fee:
$10,617
Permit Type:
N/A
Building Type:
N/A
411 w sixth st - new adu 600-sqft new garage 742-sqft demolish existing garage 620-sqft rev: addenda for a1.0. a1.1
Valuation:
$106,071
Permit #:
COMBR-2020-00001
Status:
final
Fee:
$8,513
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - landlord facade work: modify facade of (2) existing retail spaces
Valuation:
N/A
Permit #:
MEC21-01156
Status:
complete
Fee:
$47
Permit Type:
N/A
Building Type:
N/A
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SQ. 1 Construction, Inc. #1055293 License info
License Not Verified
| License # | 1055293 |
| Status | Active |
| State | California |
| Type | California State Contractors License |
| Class | B |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2025. Check the current license status of SQ. 1 Construction, Inc. #1055293 with the California Contractors State License Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1055293 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for SQ. 1 Construction, Inc. #1055293 at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | First Insurance |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Exempt |
9
Permits
- Building permit records show that SQ. 1 Construction, Inc. #1055293 has worked on 9 permitted projects.
Marty and his team of sub contractors is always on time, on budget and on schedule.