Our Resources
Ask Your Agent a Question
Testimonials
"
Buying our first home felt a lot less overwhelming thanks to Costello. Our agent knew the area well, got us a great deal, and connected us with a great lender, inspector, and attorney. Because of them we felt so much more confident and at ease throughout the process!
"
- Janet and Dan M.
"
Costello was amazing throughout the entire process! Our agent was supportive, informative, and always available to answer my questions and deal with my busy schedule. I would recommend her to anyone! I know whenever I do this in the future I won’t hesitate on who to call.
"
- Jason W.
"
I would recommend Costello to my closest friends and family in a heartbeat. From the moment we met our agent, he was focused on listening to our goals and our needs and carefully walked us through what to expect—and gave us valuable advice and expertise. His knowledge and experience of real estate combined with a highly relational approach made us feel confident every step of the way. We are so glad we sold our house with him—he’s a true professional and a wonderful human being! Highly recommended!
"
- Phil and Lisa B
The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity Program of Charleston Trident Association of REALTORS® -- All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumer's personal,
Canopy MLS® Copyright ©2026 All rights reserved.
Information deemed reliable but not guaranteed.
Property information provided courtesy of the Internet Exchange Program of the Greenville Association of Realtors.
The information being provided is for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Data is updated as of September 15, 2026 1:19 AM UTC
© 2026 Triad MLS, Inc. All rights reserved. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. This site will be monitored for "scraping" and any use of search facilities of data on the site other than by potential buyers/sellers is prohibited. All Sale data is for informational purposes only and
The data relating to real estate for sale on this web site comes in part from the South Carolina - CML Consolidated Multiple Listings. Real estate listings held by brokerage firms other than Costello Real Estate and Investments LLC are marked with the IDX logo.
All information deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) nor Costello Real Estate and Investments LLC shall be responsible
The data relating to real estate on this web site comes in part from the Internet Data Exchange program of Hive MLS LLC, and is updated as of September 15, 2026 1:09 AM UTC All information is deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change, or withdrawal. Neither listing broker(s) nor Costello Real Estate and Investments LLC shall be responsible for any typographical errors, misinformation, or misprints, and shall be held totally
