Updated: Jun 03, 2026
Location and Projects
Address
2001 BUTTERFIELD, Downers Grove, IL, 60515
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Ostrander Construction Inc
Founded in 1993 by Lee Ostrander, Ostrander Construction Inc. operates out of Downers Grove and serves clients across the Chicago Metropolitan Area. With over 30 years in business, the company has grown from a single-person operation to a commercial construction firm employing more than 25 professionals. Ostrander Construction specializes in commercial projects, with experience in medical office, industrial, retail, education, wellness, and government facility construction. The management team, which includes Lee Ostrander as president and founder and Connor Ostrander as project manager, brings depth in project oversight and a strong understanding of regional construction needs. The firm’s portfolio reflects a broad range of building types, supporting both public and private sector clients throughout the greater Chicagoland area.
Ostrander Construction Inc Services
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Ostrander Construction Inc Contact Information
Phone Number: (630) 971-2211
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Address: 2001 BUTTERFIELD, Downers Grove, IL 60515
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Ostrander Construction Inc Downers Grove
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ostrander Construction Inc has a BuildZoom score of 103, which places them above 90% of 65,686 contractors in Illinois.
Activity
|
2 projects
|
2025 |
|
4 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Ostrander Construction Inc has worked on at least
11.0 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
|
2 projects
|
< $5k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
|
1 project
|
$1mil+ |
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 Ostrander Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
2019 cbrc: self-cert - interior alterations to office suite 450 to include architectural electrical mechanical and plumbing as per plans. construction type -1a occupancy - b-business
Valuation:
$210,000
Permit #:
101017719
Status:
expired
Fee:
$1,744
Permit Type:
N/A
Building Type:
N/A
Commercial alteration/repair (no new sq ftg)
Valuation:
$900,000
Permit #:
24-00000807|CCAD00
Status:
applied
Fee:
N/A
Permit Type:
Commercial - cad
Building Type:
N/A
Self cert 2019 cbrc: interior alterations to office suite 650 as per plans. b-business 1a construction
Valuation:
$400,000
Permit #:
100990411
Status:
complete
Fee:
$1,633
Permit Type:
N/A
Building Type:
N/A
(hfma) healthcare financial management association- suite 1500-interior commercial buildout
Valuation:
$800,000
Permit #:
21-ACM-0195
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: alterations to existing 1st floor washroom & corridor in 11 story office space (occupancy group b; type ia construction)
Valuation:
$140,000
Permit #:
100957604
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Bold insight- 2nd and 3rd floor remodel rotunda interior commercial remodel project
Valuation:
$200,000
Permit #:
22-ACM-0001
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Self cert: interior alterations to existing 5th floor office space suite 560 as per plans
Valuation:
$350,000
Permit #:
100939355
Status:
complete
Fee:
$1,610
Permit Type:
N/A
Building Type:
N/A
Nex terra wine company- suite 900- interior commercial building out project
Valuation:
$190,000
Permit #:
22-ACM-0015
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Self cert- interior alteration to existing 5h floor office suite 550 as per plans
Valuation:
$267,000
Permit #:
100945613
Status:
expired
Fee:
$1,405
Permit Type:
N/A
Building Type:
N/A
Self-cert 2019 cbrc: alterations to existing 11th floor washroom and corridor in 11 story office space as per plans (occupancy group b; type ia construction)
Valuation:
$90,000
Permit #:
100913353
Status:
expired
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Self cert - interior alterations to existing 2nd floor office space as per plans
Valuation:
$210,000
Permit #:
100918887
Status:
complete
Fee:
$1,162
Permit Type:
N/A
Building Type:
N/A
Suite 900 - konica minolta - partial interior remodel of the 9th floor for commerical office
Valuation:
$361,000
Permit #:
20-ACM-0024
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Symmetry energy - interior commerical remodel project
Valuation:
$150,000
Permit #:
22-ACM-0128
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Commercial alteration/repair (no new sq ftg)
Valuation:
$247,000
Permit #:
21-00001482|CCAD00
Status:
applied
Fee:
N/A
Permit Type:
Commercial - cad
Building Type:
N/A
Symmetry energy - add/relocate fire sprinklers in accordance with nfpa 13 and local fire code visual inspection required
Valuation:
$3,500
Permit #:
22-SPR-0055
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
The traction group - suite 265 - interior commercial building out
Valuation:
$294,124
Permit #:
20-ACM-0016
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cj america - suite 720 - interior commerical expansion project
Valuation:
$185,000
Permit #:
21-ACM-0052
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alpha wealth management - suite 501 - interior commercial remodel project
Valuation:
$65,000
Permit #:
22-ACM-0139
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Commercial alteration/repair (no new sq ftg)
Valuation:
$130,000
Permit #:
21-00005720|CCAD00
Status:
applied
Fee:
N/A
Permit Type:
Commercial - cad
Building Type:
N/A
Interior building out
Valuation:
$2,200,000
Permit #:
23-03454
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Avg Project
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Projects
156
BZ Score
$50K
Avg Project
-
Projects
142
BZ Score
$3.5K
Avg Project
-
Projects
Ostrander Construction Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Ostrander Construction Inc License info
Verified License
| License # | TGC04670 |
| Status | Active |
| City | City Of Chicago |
| Type | General Contractor (Class D) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Ostrander Construction Inc at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 201601136 |
| Status | Active |
| City | Oak Park |
| Type | Contractor |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Ostrander Construction Inc at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 13-00002912 |
| Status | Active |
| City | Aurora |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Ostrander Construction Inc with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CR4433 |
| Status | Active |
| County | Dupage County |
| Type | Gen Contractor W/Trades |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Ostrander Construction Inc with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CL-15-21331 |
| Status | Active |
| Town | Orland Park |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Ostrander Construction Inc with the Village of Orland Park Contractor License
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2013-CR4433 |
| Status | Active |
| County | Dupage County |
| Type | Gen Contractor W/Trades |
- When BuildZoom last verified this license, it had an expiration date of December, 2015. Check the current license status of Ostrander Construction Inc with the County of DuPage
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 21167 |
| Status | Inactive |
| Hoffman Estates | |
| Type | General Contractor |
- According to the Village of Hoffman Estates, 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 Ostrander Construction Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 9426 |
| Status | Inactive |
| Hoffman Estates | |
| Type | General Contractor |
- According to the Village of Hoffman Estates, 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 Ostrander Construction Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR4433 |
| Status | Inactive |
| County | Dupage County |
| Type | General Contractor W/Trades, Carpentry |
- According to the County of Dupage Contractor Registration Information, 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 Ostrander Construction Inc at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Drywall |
- According to the Cook County Department of Building and Zoning, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Carpentry |
- According to the Cook County Department of Building and Zoning, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | General With Trades |
- According to the Cook County Department of Building and Zoning, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | City Of Chicago |
| Type | D $2,000,000 Project Ceiling |
- According to the City of Chicago Data Portal, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 7096 |
| Status | Inactive |
| Hoffman Estates | |
| Type | General Contractor |
- According to the Village of Hoffman Estates, 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 Ostrander Construction Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CR4433 |
| Status | Inactive |
| County | Dupage County |
| Type | Carpentry |
- According to the County of Dupage Contractor Registration Information, 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 Ostrander Construction Inc at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
142
Permits
- Building permit records show that Ostrander Construction Inc has worked on 142 permitted projects.
Ostrander Construction Inc Employees
LO
Lee Ostrander
Owner