Updated: Jun 23, 2026
Location and Projects
Address
9751 Clayton Rd, Saint Louis, MO, 63124
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Mainline Group Architecture, Inc
Mainline Group Architecture, Inc, 9751 Clayton Rd, Saint Louis, MO (Owned by: Mainline Group Architecture, Inc.) holds a Architectural Corporation license and 1 other license according to the Missouri license board.
Their BuildZoom score of 101 ranks in the top 12% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mainline Group Architecture, Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mainline Group Architecture, Inc Services
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Mainline Group Architecture, Inc Contact Information
Address: 9751 Clayton Rd, Saint Louis, MO 63124
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Mainline Group Architecture, Inc Saint Louis
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mainline Group Architecture, Inc has a BuildZoom score of 101, which places them above 88% of 23,328 contractors in Missouri.
Activity
|
10 projects
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Mainline Group Architecture, Inc has worked on at least
15.0 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
|
4 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Mainline Group Architecture, Inc mostly works on
home addition
projects.
Pricing
|
1 project
|
$5k-$20k |
|
3 projects
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $250,000. 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.
Building Permits by Mainline Group Architecture, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
New driveway & parking court new pergola and terrace new pool fence new pavilion sport court lighting and basketball hoops (26 brentmoor park)
Valuation:
$2,000,000
Permit #:
BU23-000347
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
R-1 residential h...
Interior renovation of kitchen pantry bar sunroom
Valuation:
$310,000
Permit #:
BU24-000463
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
R-1 residential h...
New pond new driveway
Valuation:
$600,000
Permit #:
BU23-000348
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
N/A
Master bathroom and closet remodel with small addition
Valuation:
$300,000
Permit #:
25BLD-05558
Status:
issued
Fee:
$1,355
Permit Type:
Addition
Building Type:
N/A
Renovations to existing 2 story brick home with 865 sq. ft. addition
Valuation:
$700,000
Permit #:
BU24-000020
Status:
issued
Fee:
N/A
Permit Type:
Single family add...
Building Type:
R-3 residential o...
**tornado damage** repair to front porch window wells roof and roof dormers
Valuation:
$100,000
Permit #:
BU25-000411
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
R-3 residential o...
New kitchen new bathrooms new flooring updated laundry room updated lighting
Valuation:
$200,000
Permit #:
BU23-000483
Status:
complete
Fee:
N/A
Permit Type:
Multi family alte...
Building Type:
N/A
***unfortunately we are unable to process your request as a re-occupancy permit as you requested. the prior use of the space and your proposed use of the space are different according to the building code. to obtain occupancy for the use you are proposing a change of use building permit would be required. a change of use building permit requires a set of signed and sealed plans prepar... see more
Valuation:
N/A
Permit #:
24CREO-00554
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Existing garage converted over to exercise room
Valuation:
$74,200
Permit #:
BU24-000158
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
R-3 residential o...
27 brentmoor park remove existing residence driveway and tennis court
Valuation:
N/A
Permit #:
DM24-000018
Status:
issued
Fee:
N/A
Permit Type:
Single family dem...
Building Type:
N/A
(accelerated plan review) ( la bon nails) tenant improvement for nail salon
Valuation:
$90,000
Permit #:
24BLD-06749
Status:
issued
Fee:
$1,281
Permit Type:
Alteration for a ...
Building Type:
N/A
(accelerated plan review) (olde paths baptist church) change of use
Valuation:
N/A
Permit #:
24BLD-09248
Status:
canceled
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
Replacing existing guard rail/fence
Valuation:
$10,000
Permit #:
BU25-000374
Status:
issued
Fee:
N/A
Permit Type:
Fence
Building Type:
R-3 residential o...
Rear conservatory - window door and skylight replacement. exterior finishes
Valuation:
$146,000
Permit #:
BU19-000312
Status:
complete
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
R-3 residential o...
Structural repairs to garage - roof framing, in fill door other exterior modifications.
Valuation:
N/A
Permit #:
BU18-000175
Status:
final
Fee:
N/A
Permit Type:
Single Family Alt...
Building Type:
N/A
Interior remodel new windows and doors
Valuation:
N/A
Permit #:
BU18-000269
Status:
complete
Fee:
N/A
Permit Type:
Multi family alte...
Building Type:
N/A
Single family residence: kitchen remodel and expansion under existing roof; addition to master bedroom and upstairs bedroom off back of house; addition of covered patio to connect existing garage and house
Valuation:
$500,000
Permit #:
23BLD-02868
Status:
plancheck
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
A new single story 21'-4x14'-5 four season porch & minor inter renovations
Valuation:
$200,000
Permit #:
BU20-000036
Status:
issued
Fee:
N/A
Permit Type:
Single family add...
Building Type:
R-3 residential o...
New sunroom and deck
Valuation:
$500,000
Permit #:
BU25-000405
Status:
issued
Fee:
N/A
Permit Type:
Single family add...
Building Type:
R-3 residential o...
New deck on rear of house to replace existing deck
Valuation:
$200,000
Permit #:
BU25-000410
Status:
issued
Fee:
N/A
Permit Type:
Single family alt...
Building Type:
R-3 residential o...
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Verified License
BuildZoom confirmed this contractor's license
Mainline Group Architecture, Inc License info
Verified License
| License # | 2004031343 |
| Status | Active |
| State | Missouri |
| Type | Architectural Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mainline Group Architecture, Inc at the Board For Architects, Professional Engineers - Missouri .
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2004031343 |
| Status | Inactive |
| State | Missouri |
| Type | Architectural Corporation |
- According to the Board For Architects, Professional Engineers - Missouri , 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 Mainline Group Architecture, Inc at the Board For Architects, Professional Engineers - Missouri .
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
17
Permits
- Building permit records show that Mainline Group Architecture, Inc has worked on 17 permitted projects.
Mainline Group Architecture, Inc Employees
MI
Mainline Group Architecture, Inc.
Owner