CASTO Residential Realty

CASTO Residential Realty Buying or Selling, we are a top producing Ohio Realtor® team supported by the power of CASTO.

A locally owned and operated multi-disciplined real estate organization since 1926. CASTO Residential Realty achieves success by putting our clients and their needs first. Our agents are experts in their community and are committed to making the process of buying or selling your home as easy as possible. CASTO has been part of the Central Ohio community for nearly 95 years and we look forward to helping you find your way home for many years to come.

CLOSED // Even in the hottest markets our buyers are able to win their dream homes under the guidance of our expert agen...
03/30/2026

CLOSED // Even in the hottest markets our buyers are able to win their dream homes under the guidance of our expert agents!

Contact John Mahon if you’re looking to buy or sell!

John Mahon, REALTOR
•(614) 354-1272
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CLOSED // Another gorgeous Grove City home purchased with the help of Agent John Mahon ! Contact John with all your Real...
03/20/2026

CLOSED // Another gorgeous Grove City home purchased with the help of Agent John Mahon !

Contact John with all your Real Estate needs:

John Mahon, REALTOR
•(614) 354-1272
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CLOSED // Agent John Mahon helped his buyers purchase this stunning home in the beautiful Scioto Reserve Community! ⛳️ _...
11/17/2025

CLOSED // Agent John Mahon helped his buyers purchase this stunning home in the beautiful Scioto Reserve Community! ⛳️

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Contact John for any Real Estate needs:

•[email protected]
•(614) 354-1272
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SOLD // In contract after only 10 days on market this gorgeous condo was listed by Agent John Mahon. ____________Contac...
11/06/2025

SOLD // In contract after only 10 days on market this gorgeous condo was listed by Agent John Mahon.

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Contact John for any Real Estate needs:

•[email protected]
•(614) 354-1272
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CONTINGENT // Agent John Mahon is representing the Seller’s on this chic & timeless, 4 bed residence. A stunningly well ...
09/23/2025

CONTINGENT // Agent John Mahon is representing the Seller’s on this chic & timeless, 4 bed residence. A stunningly well kept, move-in ready home in highly sought after Upper Arlington. Contingent after only 3 days on market!

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Contact John for any Real Estate needs:

•[email protected]
•(614) 354-1272
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CLOSED // Yes, we do both sides of residential sales but we don’t stop there! This gorgeous commercial property will hav...
08/18/2025

CLOSED // Yes, we do both sides of residential sales but we don’t stop there! This gorgeous commercial property will have a new life with the Buyer’s after quick negotiations & a smooth close.

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CLOSED // Agent John Mahon represented the Buyers on this exquisitely updated Merion Village home. Multiple offers the f...
07/15/2025

CLOSED // Agent John Mahon represented the Buyers on this exquisitely updated Merion Village home. Multiple offers the first day on market but John’s experience and knowledge resulted in a win for our Buyers!

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Contact John for any Real Estate needs:

•[email protected]
•(614) 354-1272
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CLOSED // Agent Maia Edwards assisted her Buyer in the purchase of this gorgeous historical renovation - low maintenance...
05/06/2025

CLOSED // Agent Maia Edwards assisted her Buyer in the purchase of this gorgeous historical renovation - low maintenance and full of character.
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Are you looking to buy, sell, or invest? Reach out and start the conversation today!

•[email protected]
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#614

CLOSED // Agent Maia Edwards assisted her Buyer in the purchase of this Harrison West beauty - under list price!!_______...
04/08/2025

CLOSED // Agent Maia Edwards assisted her Buyer in the purchase of this Harrison West beauty - under list price!!
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Are you looking to buy, sell, or invest? Reach out and start the conversation today!

•[email protected]
______________________
#614

🏡 CLOSED🏡 __________________Agent Maia Edwards helped her Buyer close on the purchase of this Harrison West beauty - und...
04/08/2025

🏡 CLOSED🏡
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Agent Maia Edwards helped her Buyer close on the purchase of this Harrison West beauty - under list price!

__________________

Are you looking to buy, sell, or invest? Reach out to start the conversation!

•[email protected]

__________________

#614

SOLD // This beautiful Dublin home listed by our agent, John Mahon, was in contract after only twelve hours on the marke...
02/20/2025

SOLD // This beautiful Dublin home listed by our agent, John Mahon, was in contract after only twelve hours on the market!! He secured an offer with no contingencies and a non-refundable deposit so his clients could have a stress free closing!
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Contact John for any Real Estate needs:

•[email protected]
•(614) 354-1272
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Address

Columbus, OH

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+16147442098

Website

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Our Story

CASTO Residential Realty is a small, but dedicated group of Realtors® that have a strong passion for helping our exclusive network of resident family and friends find a house they can make into a “home”.

CASTO began building houses over 90 years ago and is now a successful commercial developer across Central Ohio. As part of the CASTO family we have an ingrained expertise and large scale insight on all things housing. We understand the construction industry, the local neighborhoods, the desirable schools, and even where traffic is a reason not to buy.

While the brokerage is boutique in size, it has the unique advantage of being backed by the power of the CASTO name and its’ relationships.