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Recent Sales

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  • $220,000
    3 bd2 ba1,746 sqft Williamstown, MA
    3 bd2 ba1,746 sqft
    Williamstown, MA
    Sold 1 month ago
    Seller
    160 Water St #102, Williamstown, MA, 01267
  • $282,000
    2 bd2 ba981 sqft Taunton, MA
    2 bd2 ba981 sqft
    Taunton, MA
    Sold 3 months ago
    BuyerSeller
    68 Church Grn #7, Taunton, MA, 02780
  • $282,000
    2 bd2 ba981 sqft Taunton, MA
    2 bd2 ba981 sqft
    Taunton, MA
    Sold 8 months ago
    Seller
    68 Church Grn #14, Taunton, MA, 02780
  • $282,000
    2 bd2 ba981 sqft Taunton, MA
    2 bd2 ba981 sqft
    Taunton, MA
    Sold 10 months ago
    BuyerSeller
    68 Church Grn SUITE 3, Taunton, MA, 02780
  • $147,100
    2 bd2 ba1,222 sqft South Boston, MA
    2 bd2 ba1,222 sqft
    South Boston, MA
    Sold 7 years ago
    BuyerSeller
    39 Dorchester St APT 15, South Boston, MA, 02127
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4
Sales last 12 months
37
Total sales
$220K-$282K
Price range
$266K
Average price

Get to know John Costello

Specialties
Buyer's AgentListing AgentProperty Management
13 Years of experience

John Costello's listings & sales (37)

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Sold (37)

Address
Sold date
Closing price
Represented
Flag Sale
10/31/2025$220,000Seller
9/17/2025$282,000Buyer and Seller
4/30/2025$282,000Seller
2/20/2025$282,000Buyer and Seller
1/30/2019$147,100Buyer and Seller

John Costello's reviews (51)

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  • 5.0
    • 10/1/2025
    • arangoa8080

    Bought a Condo home in 2025 in Newton highlands, Newton highlands, MA.

    From day one, working with John Costello from Maloney Properties was an exceptional experience. He guided us step by step through the entire home-buying process, showing ...
    From day one, working with John Costello from Maloney Properties was an exceptional experience. He guided us step by step through ...
    5.0
    • 10/1/2025
    • wburgos829

    Bought a home in 2025.

    John was absolutely exceptional throughout our condo-buying journey. His extensive knowledge of the condo market and the entire buying process made us feel confident and ...
    John was absolutely exceptional throughout our condo-buying journey. His extensive knowledge of the condo market and the entire bu...
  • 5.0
    • 5/9/2025
    • EMIL K

    Bought a Condo home in 2025 in South boston, Boston, MA.

    John was a great help throughout the buying process and all of it's many twists and turns (primarily if this is your first home) ! Would strongly recommend him to other ...
    John was a great help throughout the buying process and all of it's many twists and turns (primarily if this is your first home) ...
    5.0
    • 12/30/2024
    • andreaquintero2311

    Bought a home in 2024.

    Working with John was an incredible experience. He was extremely helpful throughout the entire apartment search, always offering clear guidance and quick support at every...
    Working with John was an incredible experience. He was extremely helpful throughout the entire apartment search, always offering c...
  • 5.0
    • 2/18/2022
    • Sam L

    Bought a Townhouse home in 2022 in Wellesley, MA.

    John is very knowledgeable, and incredibly helpful during the home buying process! He was very quick to resolve many of the issues I had encountered. Would definitely rec...
    John is very knowledgeable, and incredibly helpful during the home buying process! He was very quick to resolve many of the issues...
    5.0
    • 10/25/2021
    • jaysheehan60

    Bought a Condo home in 2021 in Wellesley, MA.

    John did a great job helping us threw the process to purchase a condo in Wellesley. He was always available to answer questions and explain things to me. Would definitely...
    John did a great job helping us threw the process to purchase a condo in Wellesley. He was always available to answer questions an...
  • 5.0
    • 10/19/2021
    • mmaiullari

    Bought a Vacant Land home in 2021 in South boston, Boston, MA.

    Helped me with the homebuying process; responsive to emails and phone within a reasonable timeframe; knowledgeable; coordinated tours; answered questions; very helpful
    Helped me with the homebuying process; responsive to emails and phone within a reasonable timeframe; knowledgeable; coordinated to...
    5.0
    • 9/16/2021
    • James J McCue

    Bought and sold a home in 2021 in MA 02128.

    I generally don't write reviews but wanted to express my thanks to John Costello and his team for an outstanding job guiding me through a complicated home buying proces...
    I generally don't write reviews but wanted to express my thanks to John Costello and his team for an outstanding job guiding me t...
  • 5.0
    • 3/26/2020
    • Stephen

    Helped me rent a home in Boston, MA.

    John Costello and his team made this process seamless and their responses to my e-mails were fast. I really appreciate their work. I’d recommend John Costello and his tea...
    John Costello and his team made this process seamless and their responses to my e-mails were fast. I really appreciate their work....
    5.0
    • 3/23/2020
    • shepherd cb

    Helped me rent a Apartment home in South boston, Boston, MA.

    Doris Lin was my primary point of contact with Maloney Properties, however, all of my contact with both her, and John Costello, was very pleasant and professional. They a...
    Doris Lin was my primary point of contact with Maloney Properties, however, all of my contact with both her, and John Costello, wa...
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Service areas (1)

John Costello

4sales last 12 months
37total sales
$220K-$282Kprice range
$266Kaverage price
13years of experience