

John Porth has been with the Thomas Duke Company since 2005. Working primarily in Livingston County, Southern Genesee and Western Oakland counties, he began his career in the building & construction industry. John decided to obtain his real estate license in order to further assist builders and developers secure land for both commercial and residential development. As his role at Thomas Duke Company expanded, he began to specialize in marketing properties on behalf of both Sellers and Landlords to Investors, Users, and Tenants. Along with land for development, his extensive portfolio includes office, retail, and industrial properties.
John is a graduate of Central Michigan University and a United States Army veteran. He has been an active member of his community when not in the office, involved extensively in coaching and volunteer work. He prides himself on his positive attitude, experience in his market, and work ethic.
Downtown Brighton location. Outstanding visibility on Grand River in the heart of downtown shopping district.
Downtown Brighton location. Outstanding visibility on Grand River in the heart of downtown shopping district.
Two story Med-Spa building located in Downtown Fenton.
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Situated in the vibrant Downtown Business District (DBD), this prime location offers exceptional visibility and endless possibilities. Previously home to the renowned Jameson's Irish Pub, this property presents a unique opportunity for a retail or restaurant investor to make their mark in this sought-after area. With the potential for assembly with 110 Grand River, this property holds even greater promise.
4.17 acres ready for development on Grand River Ave in Howell, MI.
Residential Land for Development.
Retail/Office property
Multi-Tenant Office Building.
1,503 SF available in the popular Brighton Pointe building.
2 Unit Office/Retail Building.
(5) Vacant Parcels for Development with frontage on I-96 and Chilson Road in Genoa Twp.
Office or Retail space located on the north side of Grand River, one block West of Michigan Avenue in award winning Downtown Howell.
Retail/Office property
This 1.75 Acre site offers significant upfront cost savings and streamlined readiness for construction. Ideal for Commercial, Office, of Mixed-Use Development.
Current Landscape Yard with Outside Storage.
Multi-Tenant, Mixed-Use Building.
Free-Standing Office Building.
Industrial Warehouse with 5 Acres of Fenced Outdoor Storage.
Vacant Land ready for Industrial Development.
Multi-Tenant Office Building for Lease
Freestanding Retail Building
Retail Strip Center with space for lease.
Vacant Land for Development.
Prominent Office Building in Howell
Two Unit Office Building with space available for lease.
Vacant Land for Development
Industrial Vacant Land. Foundation for 65,000 SF has been poured, and property has been balanced.
Commercial land for development located on M-36, just west of US-23.
Residential Vacant Land. Outstanding development opportunity with utilities nearby.
Multi Tenant building housing retail, medical, and general office space.
Retail/Office building with great potential. Ready for the final touches.
Shovel Ready: Heritage Square Planned Unit Development in Howell, Michigan.
Shovel Ready: Heritage Square Planned Unit Development in Howell, Michigan.
17.39 Acres zoned RM - Residential Multifamily - allows for 6-12 unit acres.
Vacant Land for Development
Commercial Vacant Land for development.
Multi-Tenant General Office Building
Residential Vacant Land. Outstanding development opportunity with utilities nearby.
88 Flat Acres just south of the Village of Metamora.
Third Floor office space located in the City Hall Building in Downtown Howell.
Multi Tenant Office/Retail Building
Seven (7) commercial outlots for development ranging from 1.24 Acres to 3.95 Acres.
Final component to an almost fully developed/occupied PUD. Various options for development/design standards. All utilities available off site.
Various development options included in the General Business District (GBD) - uses included in brochure.
Office Building
A Site Plan Approved Single Family Residential Development
3 Building Office Center
A multi-tenant retail center consisting of four buildings.
Site Plan approved for 18,000 sf
Built-to-Suit for lease opportunity.
Medical or General Office use.