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Investment Highlights

  • Full-service cafe on first floor
  • Recent interior renovations
  • Excellent access to major highways

Executive Summary

5555 Winghaven Boulevard presents a premium Class A office opportunity in the thriving O’Fallon, Missouri market. This 73,840-square-foot, single-user building offers a professional, high-quality environment designed for functionality and employee engagement. Featuring an efficient layout across three stories, the property includes a full-service on-site café—an amenity that enhances workplace experience by promoting convenience and productivity.
With a robust 5.4/1,000 RSF parking ratio, including 23 executive covered spaces and EV charging stations, the building meets the needs of a modern workforce. Recent interior upgrades provide an updated, collaborative workspace with flexible and open areas, conference facilities, and private meeting rooms. Fully sprinklered and supported by modern building systems, the property also benefits from monument signage and visibility at the Winghaven entrance.
Strategically located near Winghaven Boulevard and Interstate 64, the property ensures quick connections to St. Charles County and the greater St. Louis region. The surrounding area offers abundant dining, entertainment, and lodging options, complementing a strong residential base and commercial amenities. This property represents an outstanding choice for organizations seeking a long-term headquarters or regional hub in a fast-growing business corridor.

Property Facts

Sale Type
Owner User
Property Type
Office
Building Size
73,840 SF
Building Class
A
Year Built
1999
Tenancy
Single
Building Height
3 Stories
Typical Floor Size
24,613 SF
Slab To Slab
12’
Building FAR
0.29
Lot Size
5.83 AC
Zoning
HTCD
Parking
323 Spaces (5.4 Spaces per 1,000 SF Leased)

Amenities

  • Food Service
  • Golf Course
  • Property Manager on Site
  • Wheelchair Accessible
  • Balcony

Space Availability

  • Space
  • Size
  • Space Use
  • Build-Out
  • Available
  • 1st Floor
  • 23,264 SF
  • Office
  • -
  • Now
  • 2nd Floor
  • 24,507 SF
  • Office
  • -
  • Now
  • 3rd Floor
  • 24,508 SF
  • Office
  • -
  • Now
Space Size Space Use Build-Out Available
1st Floor 23,264 SF Office - Now
2nd Floor 24,507 SF Office - Now
3rd Floor 24,508 SF Office - Now

1st Floor

Size
23,264 SF
Space Use
Office
Build-Out
-
Available
Now

2nd Floor

Size
24,507 SF
Space Use
Office
Build-Out
-
Available
Now

3rd Floor

Size
24,508 SF
Space Use
Office
Build-Out
-
Available
Now

1st Floor

Size 23,264 SF
Space Use Office
Build-Out -
Available Now

2nd Floor

Size 24,507 SF
Space Use Office
Build-Out -
Available Now

3rd Floor

Size 24,508 SF
Space Use Office
Build-Out -
Available Now

Somewhat walkable
30/100
Exceptionally drivable
100/100
Fairly bikeable
40/100

Property Taxes

Property Taxes

Parcel Number
4-069A-A536-00-0002.0000000
Land Assessment
$0
Improvements Assessment
$0
Total Assessment
$2,160,000
  • Listing ID: 39793760

  • Date on Market: 3/16/2026

  • Last Updated:

  • Address: 5555 Winghaven Blvd, O'Fallon, MO 63368

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