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The John Blair Building 645 N Michigan Ave 696 - 27,853 SF of Space Available in Chicago, IL 60611

Office Spaces Illinois Chicago 645 N Michigan Ave, Chicago, IL 60611

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Highlights

  • Conferencing Facility, High-Speed Internet, On-Site Management and Restaurant

All Available Spaces(10)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 2nd Floor, Ste 220
  • 1,634 SF
  • 5-10 Years
  • $54.68 CAD/SF/YR $4.56 CAD/SF/MO $89,339 CAD/YR $7,445 CAD/MO
  • Office
  • Spec Suite
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

Furnished spec suite with large all-glass storefront, elevator ID, and great natural light and high ceilings.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
  • Natural Light
  • Finished Ceilings: 9’ - 14’
  • High Ceilings
  • 2nd Floor, Ste 227
  • 5,664 SF
  • 5-10 Years
  • $50.47 CAD/SF/YR $4.21 CAD/SF/MO $285,859 CAD/YR $23,822 CAD/MO
  • Office
  • Shell Space
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

Recently demolished with elevator ID. 14 FT ceiling heights.

  • Listed rate may not include certain utilities, building services and property expenses
  • High Ceilings
  • Finished Ceilings: 9’ - 14’
  • 3rd Floor, Ste 300
  • 7,663 SF
  • Negotiable
  • $64.49 CAD/SF/YR $5.37 CAD/SF/MO $494,178 CAD/YR $41,181 CAD/MO
  • Office
  • Full Build-Out
  • 2026-09-01
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

Private floor opportunity. Excellent existing conditions. Great natural light. 15-foot ceiling height.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
  • 4th Floor, Ste 410
  • 5,357 SF
  • Negotiable
  • $54.68 CAD/SF/YR $4.56 CAD/SF/MO $292,895 CAD/YR $24,408 CAD/MO
  • Office/Medical
  • -
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

Purpose built for medical use.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
  • 4th Floor, Ste 423
  • 696 SF
  • Negotiable
  • $54.68 CAD/SF/YR $4.56 CAD/SF/MO $38,054 CAD/YR $3,171 CAD/MO
  • Office/Medical
  • -
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

Purpose built for counseling, psychologist, psychiatrist or similar.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
  • 4th Floor, Ste 424
  • 887 SF
  • Negotiable
  • $54.68 CAD/SF/YR $4.56 CAD/SF/MO $48,497 CAD/YR $4,041 CAD/MO
  • Office
  • -
  • Now
645 N Michigan Ave, Chicago, IL for lease Building Photo- Image 1 of 2
Building Photo
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 2 of 2
Floor Plan
  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
  • 5th Floor, Ste 540
  • 2,513 SF
  • Negotiable
  • $61.68 CAD/SF/YR $5.14 CAD/SF/MO $155,014 CAD/YR $12,918 CAD/MO
  • Office
  • Spec Suite
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

New furnished spec suite. Glass fronts and great natural light

  • Listed rate may not include certain utilities, building services and property expenses
  • 5th Floor, Ste 543
  • 1,863 SF
  • Negotiable
  • $61.68 CAD/SF/YR $5.14 CAD/SF/MO $114,919 CAD/YR $9,577 CAD/MO
  • Office
  • Spec Suite
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

New furnished spec suite. Glass fronts and great natural light.

  • Listed rate may not include certain utilities, building services and property expenses
  • 5th Floor, Ste 558
  • 851 SF
  • 5-10 Years
  • $54.68 CAD/SF/YR $4.56 CAD/SF/MO $46,529 CAD/YR $3,877 CAD/MO
  • Office
  • Spec Suite
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan

Spec suite, open plan.

  • Listed rate may not include certain utilities, building services and property expenses
  • Open-Plan
  • Open Floor Plan Layout
  • 8th Floor, Ste 822
  • 725 SF
  • Negotiable
  • $61.68 CAD/SF/YR $5.14 CAD/SF/MO $44,722 CAD/YR $3,727 CAD/MO
  • Office
  • -
  • Now
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
  • Listed rate may not include certain utilities, building services and property expenses
Space Size Term Rental Rate Space Use Build-Out Available
2nd Floor, Ste 220 1,634 SF 5-10 Years $54.68 CAD/SF/YR $4.56 CAD/SF/MO $89,339 CAD/YR $7,445 CAD/MO Office Spec Suite Now
2nd Floor, Ste 227 5,664 SF 5-10 Years $50.47 CAD/SF/YR $4.21 CAD/SF/MO $285,859 CAD/YR $23,822 CAD/MO Office Shell Space Now
3rd Floor, Ste 300 7,663 SF Negotiable $64.49 CAD/SF/YR $5.37 CAD/SF/MO $494,178 CAD/YR $41,181 CAD/MO Office Full Build-Out 2026-09-01
4th Floor, Ste 410 5,357 SF Negotiable $54.68 CAD/SF/YR $4.56 CAD/SF/MO $292,895 CAD/YR $24,408 CAD/MO Office/Medical - Now
4th Floor, Ste 423 696 SF Negotiable $54.68 CAD/SF/YR $4.56 CAD/SF/MO $38,054 CAD/YR $3,171 CAD/MO Office/Medical - Now
4th Floor, Ste 424 887 SF Negotiable $54.68 CAD/SF/YR $4.56 CAD/SF/MO $48,497 CAD/YR $4,041 CAD/MO Office - Now
5th Floor, Ste 540 2,513 SF Negotiable $61.68 CAD/SF/YR $5.14 CAD/SF/MO $155,014 CAD/YR $12,918 CAD/MO Office Spec Suite Now
5th Floor, Ste 543 1,863 SF Negotiable $61.68 CAD/SF/YR $5.14 CAD/SF/MO $114,919 CAD/YR $9,577 CAD/MO Office Spec Suite Now
5th Floor, Ste 558 851 SF 5-10 Years $54.68 CAD/SF/YR $4.56 CAD/SF/MO $46,529 CAD/YR $3,877 CAD/MO Office Spec Suite Now
8th Floor, Ste 822 725 SF Negotiable $61.68 CAD/SF/YR $5.14 CAD/SF/MO $44,722 CAD/YR $3,727 CAD/MO Office - Now

2nd Floor, Ste 220

Size
1,634 SF
Term
5-10 Years
Rental Rate
$54.68 CAD/SF/YR $4.56 CAD/SF/MO $89,339 CAD/YR $7,445 CAD/MO
Space Use
Office
Build-Out
Spec Suite
Available
Now

2nd Floor, Ste 227

Size
5,664 SF
Term
5-10 Years
Rental Rate
$50.47 CAD/SF/YR $4.21 CAD/SF/MO $285,859 CAD/YR $23,822 CAD/MO
Space Use
Office
Build-Out
Shell Space
Available
Now

3rd Floor, Ste 300

Size
7,663 SF
Term
Negotiable
Rental Rate
$64.49 CAD/SF/YR $5.37 CAD/SF/MO $494,178 CAD/YR $41,181 CAD/MO
Space Use
Office
Build-Out
Full Build-Out
Available
2026-09-01

4th Floor, Ste 410

Size
5,357 SF
Term
Negotiable
Rental Rate
$54.68 CAD/SF/YR $4.56 CAD/SF/MO $292,895 CAD/YR $24,408 CAD/MO
Space Use
Office/Medical
Build-Out
-
Available
Now

4th Floor, Ste 423

Size
696 SF
Term
Negotiable
Rental Rate
$54.68 CAD/SF/YR $4.56 CAD/SF/MO $38,054 CAD/YR $3,171 CAD/MO
Space Use
Office/Medical
Build-Out
-
Available
Now

4th Floor, Ste 424

Size
887 SF
Term
Negotiable
Rental Rate
$54.68 CAD/SF/YR $4.56 CAD/SF/MO $48,497 CAD/YR $4,041 CAD/MO
Space Use
Office
Build-Out
-
Available
Now

5th Floor, Ste 540

Size
2,513 SF
Term
Negotiable
Rental Rate
$61.68 CAD/SF/YR $5.14 CAD/SF/MO $155,014 CAD/YR $12,918 CAD/MO
Space Use
Office
Build-Out
Spec Suite
Available
Now

5th Floor, Ste 543

Size
1,863 SF
Term
Negotiable
Rental Rate
$61.68 CAD/SF/YR $5.14 CAD/SF/MO $114,919 CAD/YR $9,577 CAD/MO
Space Use
Office
Build-Out
Spec Suite
Available
Now

5th Floor, Ste 558

Size
851 SF
Term
5-10 Years
Rental Rate
$54.68 CAD/SF/YR $4.56 CAD/SF/MO $46,529 CAD/YR $3,877 CAD/MO
Space Use
Office
Build-Out
Spec Suite
Available
Now

8th Floor, Ste 822

Size
725 SF
Term
Negotiable
Rental Rate
$61.68 CAD/SF/YR $5.14 CAD/SF/MO $44,722 CAD/YR $3,727 CAD/MO
Space Use
Office
Build-Out
-
Available
Now
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
645NM_Suite 220_1,634 RSF

2nd Floor, Ste 220

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 1,634 SF
Term 5-10 Years
Rental Rate $54.68 CAD/SF/YR
Space Use Office
Build-Out Spec Suite
Available Now

Furnished spec suite with large all-glass storefront, elevator ID, and great natural light and high ceilings.

  • Listed rate may not include certain utilities, building services and property expenses
  • Finished Ceilings: 9’ - 14’
  • Space is in Excellent Condition
  • High Ceilings
  • Natural Light
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
645NM_Suite 227_5,553 RSF

2nd Floor, Ste 227

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 5,664 SF
Term 5-10 Years
Rental Rate $50.47 CAD/SF/YR
Space Use Office
Build-Out Shell Space
Available Now

Recently demolished with elevator ID. 14 FT ceiling heights.

  • Listed rate may not include certain utilities, building services and property expenses
  • Finished Ceilings: 9’ - 14’
  • High Ceilings
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
26-0318_645NM Suite 300_Mkt Plan_v1.0_Furn

3rd Floor, Ste 300

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 7,663 SF
Term Negotiable
Rental Rate $64.49 CAD/SF/YR
Space Use Office
Build-Out Full Build-Out
Available 2026-09-01

Private floor opportunity. Excellent existing conditions. Great natural light. 15-foot ceiling height.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
645 N Michigan_Suite 410_5,357 RSF

4th Floor, Ste 410

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 5,357 SF
Term Negotiable
Rental Rate $54.68 CAD/SF/YR
Space Use Office/Medical
Build-Out -
Available Now

Purpose built for medical use.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Suite 423 Floor Plan

4th Floor, Ste 423

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 696 SF
Term Negotiable
Rental Rate $54.68 CAD/SF/YR
Space Use Office/Medical
Build-Out -
Available Now

Purpose built for counseling, psychologist, psychiatrist or similar.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
1 of 2
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Building Photo- Image 1 of 2
Furniture Floor Plan
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 2 of 2
No Furniture Floor Plan

4th Floor, Ste 424

645 N Michigan Ave, Chicago, IL for lease Building Photo- Image 1 of 2
Building Photo
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 2 of 2
Floor Plan
Size 887 SF
Term Negotiable
Rental Rate $54.68 CAD/SF/YR
Space Use Office
Build-Out -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
645NM_Suite 540_2,513 RSF_Spec

5th Floor, Ste 540

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 2,513 SF
Term Negotiable
Rental Rate $61.68 CAD/SF/YR
Space Use Office
Build-Out Spec Suite
Available Now

New furnished spec suite. Glass fronts and great natural light

  • Listed rate may not include certain utilities, building services and property expenses
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
26-0604_645NM Suite 543 Mkt Plan_v1.2

5th Floor, Ste 543

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 1,863 SF
Term Negotiable
Rental Rate $61.68 CAD/SF/YR
Space Use Office
Build-Out Spec Suite
Available Now

New furnished spec suite. Glass fronts and great natural light.

  • Listed rate may not include certain utilities, building services and property expenses
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
645NM_Suite 558_851 RSF

5th Floor, Ste 558

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 851 SF
Term 5-10 Years
Rental Rate $54.68 CAD/SF/YR
Space Use Office
Build-Out Spec Suite
Available Now

Spec suite, open plan.

  • Listed rate may not include certain utilities, building services and property expenses
  • Open Floor Plan Layout
  • Open-Plan
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
26-0605_645NM Suite 822_Mkt Plan

8th Floor, Ste 822

645 N Michigan Ave, Chicago, IL for lease Floor Plan- Image 1 of 1
Floor Plan
Size 725 SF
Term Negotiable
Rental Rate $61.68 CAD/SF/YR
Space Use Office
Build-Out -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

Property Overview

This steel and glass building is located in the heart of the Michigan Avenue shopping area.

  • Controlled Access
  • Conferencing Facility
  • Property Manager on Site
  • Restaurant
  • Signage
  • Central Heating
  • Natural Light
  • Air Conditioning
  • Smoke Detector

Property Facts

Building Type
Office
Year Built/Renovated
1958/2022
Building Height
11 Stories
Building Size
212,344 SF
Building Class
B
Typical Floor Size
17,695 SF
Unfinished Ceiling Height
12’
Parking
Surface Parking
Covered Parking
1 1
Exceptionally walkable
100/100
Somewhat drivable
30/100
Exceptional public transit
100/100
Very bikeable
80/100
Source: Local Logic®
(773) 272-5277

Still interested?

Contact the brokers for more information about this property

Contacts

  • Listing ID: 3950718

  • Date on Market: 2026-07-01

  • Last Updated:

  • Address: 645 N Michigan Ave, Chicago, IL 60611

The Streeterville Office Property at 645 N Michigan Ave, Chicago, IL 60611 is currently available. Contact Stream Realty Partners, LP for more information.

OFFICE PROPERTIES IN NEARBY NEIGHBORHOODS

1 of 6
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
645 N Michigan Ave, Chicago, IL for lease Primary Photo- Image 1 of 6
Primary Photo
645 N Michigan Ave, Chicago, IL for lease Building Photo- Image 2 of 6
Building Photo
645 N Michigan Ave, Chicago, IL for lease Building Photo- Image 3 of 6
Building Photo
645 N Michigan Ave, Chicago, IL for lease Building Photo- Image 4 of 6
Building Photo
645 N Michigan Ave, Chicago, IL for lease Interior Photo- Image 5 of 6
Interior Photo
1 of 1
The John Blair Building | 645 N Michigan Ave
(773) 272-5277 x

The John Blair Building | 645 N Michigan Ave

Mark Baby
(773) 272-5277

Benjamin Cleveland
(312) 848-9440

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