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4241 Irwin Simpson Rd
Mason, OH 45040
Office Property For Lease
·
223,500 SF
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
Sustainability
Sustainability
ENERGY STAR® Energy Star is a program run by the U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy (DOE) that promotes energy efficiency and provides simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. Thousands of industrial, commercial, utility, state, and local organizations partner with the EPA to deliver cost-saving energy efficiency solutions that protect the climate while improving air quality and protecting public health. The Energy Star score compares a building’s energy performance to similar buildings nationwide and accounts for differences in operating conditions, regional weather data, and other important considerations. Certification is given on an annual basis, so a building must maintain its high performance to be certified year to year. To be eligible for Energy Star certification, a building must earn a score of 75 or higher on EPA’s 1 – 100 scale, indicating that it performs better than at least 75 percent of similar buildings nationwide. This 1 – 100 Energy Star score is based on the actual, measured energy use of a building and is calculated within EPA’s Energy Star Portfolio Manager tool.
