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Chicago, IL · Permit #101082340

500 N Michigan Ave

Interior work · Demolition · Roofing · Multifamily building

Reported project estimate$71,650,000Whole permitted job
Issued / readyOct 16, 2026
Source statusPhased Permitting

24 stories

Trade availability and construction progress are unconfirmed.

Suggested first contact

Skender Construction Llc

General contractor

(312) 781-0265Published business phone · Checked Nov 2, 2026

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5 suggested contact routes.

Company contact route

Skender Construction Llc

General contractor

Estimator or purchasing department
Why this contact
Project connection
Company named on permit · #101082340
Responsibility
Suggested route · project assignment unconfirmed
Timing
Stage not established by checked evidence
Project connection source ↗

Last checked Nov 2, 2026. Confirm the responsible person and purchasing package with the company.

Published business phone(312) 781-0265 Source ↗ · Checked Nov 2, 2026
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Company contact route

Norman Mechanical

Plumbing contractor

Trade estimator or purchasing department
Why this contact
Project connection
Company named on permit · #101082340
Responsibility
Suggested route · project assignment unconfirmed
Timing
Stage not established by checked evidence
Project connection source ↗

Last checked Nov 2, 2026. Confirm the responsible person and purchasing package with the company.

Published business phone(847) 253-2238 Source ↗ · Checked Nov 2, 2026
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Company contact route

Raffin Construction Company

Masonry contractor

Trade estimator or purchasing department
Why this contact
Project connection
Company named on permit · #101082340
Responsibility
Suggested route · project assignment unconfirmed
Timing
Stage not established by checked evidence
Project connection source ↗

Last checked Nov 2, 2026. Confirm the responsible person and purchasing package with the company.

Published business phone(773) 785-3055 Source ↗ · Checked Nov 2, 2026
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Company contact route

Shamrock Electric Co.Inc

Electrical contractor

Trade estimator or purchasing department
Why this contact
Project connection
Company named on permit · #101082340
Responsibility
Suggested route · project assignment unconfirmed
Timing
Stage not established by checked evidence
Project connection source ↗

Last checked Nov 2, 2026. Confirm the responsible person and purchasing package with the company.

Published business phone(847) 593-6070 Source ↗ · Checked Nov 2, 2026
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Company contact route

Heat Master

Refrigeration contractor · Ventilation contractor

Trade estimator or purchasing department
Why this contact
Project connection
Company named on permit · #101082340
Responsibility
Suggested route · project assignment unconfirmed
Timing
Stage not established by checked evidence
Project connection source ↗

Last checked Nov 2, 2026. Confirm the responsible person and purchasing package with the company.

A current business contact has not been established. Research this company ↗

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Work summary

Interior work · Demolition · Roofing · Multifamily building · 24 stories

Scope and permit evidence

Project features summarize the permit wording. The applicant reports the whole-job estimate; it is not a trade-package budget.

The issue date usually means ready to issue, subject to fee payment. It does not establish a start, completion date, or open bid.

Read the full original work description ↗
Contractors named on the permit
Heat Master ↗Refrigeration contractor · Ventilation contractor
Norman Mechanical ↗Plumbing contractor
Raffin Construction Company ↗Masonry contractor
Shamrock Electric Co.Inc ↗Electrical contractor
Skender Construction Llc ↗General contractor

Names and roles come from Chicago’s records. A listed contractor is not an award notice.

Scope & timing

Work scope
Work described
Property type
Multifamily building · Residential
Construction start
Not established by this permit
Completion date
Not supplied

Interior work Demolition Roofing

Building and development

500 North Michigan Avenue · Office conversion

500 North Michigan Avenue

Conversion of an office tower to 320 homes. Skender reported construction starting in July 2026 and targets completion in late 2027. [1]

Conversion start reported [1]
Contractor announcement · July 29, 2026

Homes
320 residential units. [1]
Building
400,000-square-foot, 24-story office building with a new 25th-floor amenity level. [1]
Work
Interior demolition, residential fit-out, elevator modernization and rooftop amenities; ground-floor retail retained. [1]

Development team

Roles below relate to the development phases shown. Contractors for individual permits are listed with those permits.

Developer
Commonwealth Development Partners

Residential conversion [1]

Architect
GREC Architects

Residential conversion [1]

General contractor
Skender

Residential conversion [1]

Original architect
Skidmore, Owings & Merrill

Office tower completed in 1968 [1]

Key dates

Ward lists Plan Commission approval of the conversion. [2]
Skender announced the construction start. [1]
Reported target: Contractor’s completion target is late 2027. [1]

Plans and project updates

Sources · 2
  1. Skender: 500 North Michigan conversion ↗

    Checked Oct 19, 2026

  2. 500 North Michigan Avenue ↗

    Checked Oct 16, 2026

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Source & observation history

Source
Chicago Building Permits ↗
First observed
Oct 17, 2026, 9:02 a.m. ET
Last observed
Nov 2, 2026, 9:01 a.m. ET
View record changes (2)
Oct 21, 2026, 9:01 a.m. ET

Permit milestone: PERMIT ISSUED (FEE DUE) → INSPECTIONS

Oct 17, 2026, 9:02 a.m. ETFirst observation
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