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4241 Irwin Simpson Rd
Mason, OH 45040
Office Property For Lease · 223,500 SF

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HIGHLIGHTS

  • Full-Building Availability: 223,533 SF across 5 floors with ~44,707 SF typical floor plates.
  • Strategic Location: In Deerfield Township—no local income tax—with access to major hospitals and retail.
  • Modern Infrastructure: Water-source heat pumps, Kohler generator, fiber connectivity via Cincinnati Bell.
  • Class A Amenities: On-site fitness center, showers, property management, and signage opportunities.
  • Parking Capacity: 350 surface spaces with a 4.3/1,000 SF parking ratio.

PROPERTY OVERVIEW

4241 Irwin Simpson Rd presents a rare opportunity to occupy a full-building Class A office asset in the thriving Deerfield Township submarket of Mason, Ohio. This five-story, 223,533 SF building offers expansive floor plates, premium amenities, and strategic positioning within one of Cincinnati’s most desirable suburban corridors. Built in 2004 and situated on over 13 acres, the property features on-site management, a full-service fitness center with showers, and prominent building and monument signage. Tenants benefit from no local personal earnings tax and proximity to major healthcare, retail, and hospitality developments. With sublease availability through November 2026, this asset is ideal for corporate headquarters, regional offices, or back-office operations seeking scale, visibility, and convenience.

  • Fitness Center
  • Pond
  • Signage
  • Wheelchair Accessible
  • Kitchen
  • Natural Light
  • Open-Plan
  • Hardwood Floors
  • Monument Signage
  • Air Conditioning

PROPERTY FACTS

Building Type
Office
Year Built
2004
Building Height
5 Stories
Building Size
223,533 SF
Building Class
B
Typical Floor Size
44,707 SF
Parking
350 Surface Parking Spaces
Covered Parking
  • Listing ID: 37589257

  • Date on Market: 9/8/2025

  • Last Updated:

  • Address: 4241 Irwin Simpson Rd, Mason, OH 45040

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