Porter Square's Top REALTORS® And Real Estate Agents
Porter Square is a neighborhood in Somerville, MA. Here are the Top Real Estate Agents that service Porter Square.
Median Home Value
$887K
5-Year Change
+53%
Top Agent
(31)
John ONeil
Gibson Sothebys
32 Years of experience
5+ Sales in the last 12 months
39 verified sales in Porter Square
Top 0.32%
in Somerville, MA
$270.6M
All-Time Sales
$590K - $5M
Price Range
Top Agent(74)
John Dean
Engel & Volkers
17 Years of experience
18+ Sales in the last 12 months
19 verified sales in Porter Square
Top 0.64%
in Somerville, MA
$163.7M
All-Time Sales
$500K - $3.1M
Price Range
5%
Negotiated Off List
Top Agent(223)
David Ladner
RE/MAX Harmony
13 Years of experience
146+ Sales in the last 12 months
15 verified sales in Porter Square
Top 1.06%
in Somerville, MA
$431.8M
All-Time Sales
$530K - $2.1M
Price Range
4%
Negotiated Off List
Top Agent(709)
Lisa Chinatti
Cameron Prestige
21 Years of experience
556+ Sales in the last 12 months
6 verified sales in Porter Square
Top 1.17%
in Somerville, MA
$2.13B
All-Time Sales
$400K - $3.1M
Price Range
5%
Negotiated Off List
Top Agent(54)
Kate Duggan
Bostonia Properties
24 Years of experience
31+ Sales in the last 12 months
6 verified sales in Porter Square
Top 1.92%
in Somerville, MA
$280.3M
All-Time Sales
$460K - $3.3M
Price Range
4%
Negotiated Off List
Top Agent(42)
Nellie Aikenhead
Aikenhead Real Estate Inc
16 Years of experience
30+ Sales in the last 12 months
5 verified sales in Porter Square
Top 1.81%
in Somerville, MA
$288.7M
All-Time Sales
$680K - $3.6M
Price Range
4%
Negotiated Off List
Top Agent(28)
Gregory McCarthy
Riverfront Realtors
20 Years of experience
0+ Sales in the last 12 months
3 verified sales in Porter Square
Top 1.49%
in Somerville, MA
$105M
All-Time Sales
$510K - $3M
Price Range
Top Agent(148)
Jeffrey Chubb
eXp Realty
18 Years of experience
20+ Sales in the last 12 months
3 verified sales in Porter Square
Top 2.56%
in Somerville, MA
$378.4M
All-Time Sales
$430K - $2M
Price Range
3%
Negotiated Off List
Top Agent(37)
Melony Swasey
Unlimited Sotheby's International Realty
16 Years of experience
27+ Sales in the last 12 months
3 verified sales in Porter Square
Top 4.26%
in Somerville, MA
$248.3M
All-Time Sales
$580K - $4M
Price Range
3%
Negotiated Off List
Top Agent(14)
Guy Contaldi
REMAX ANDREW REALTY
19 Years of experience
25+ Sales in the last 12 months
2 verified sales in Porter Square
Top 1.28%
in Somerville, MA
$280.6M
All-Time Sales
$450K - $5.2M
Price Range
4%
Negotiated Off List
Top Realtors by Neighborhood in Somerville, MA
Why you need a Top Real Estate Agent in Porter Square, Somerville,MA
Somerville has 939 active real estate agents for you to choose from. How do you know if you’re selecting the best one in your area? Simple: EffectiveAgents has analyzed the performance history and past transactions of every agent that has sold homes in Porter Square. Since 2009 we have analyzed how real estate agents perform in Porter Square and our expertise can help you find the best Realtor to sell your home.
The Porter Square Housing Market
Verified MLS market data for Porter Square in Somerville, MA as of July 2026.
Median Sale Price
$1.28M
Median Days on Market
21 days
Sale-to-List Price
103.1%
Homes Sold (monthly)
4
Across all of Somerville: $1.03M median and 22 days on market.
Neighborhood market data through July 2026. Individual results vary with price, condition, and how the broader market moves.
How We Rank Porter Square Real Estate Agents
Our rankings are built from verified transaction data, not advertising spend. For every agent we analyze more than fifteen performance signals, including recent and all-time sales, days on market, negotiation results, price-point fit, and verified reviews.
Agents cannot pay for placement in these rankings. The underlying data refreshes as new closed transactions are reported, so rankings shift with real market performance. Learn how we rank agents.
Rankings reviewed by Kevin Stuteville, Licensed Florida Real Estate Broker (License BK3068131), Founder of EffectiveAgents.
Data last updated: July 2026
Frequently Asked Questions
You have questions.
Luckily, we have answers.
How many realtors are there in Somerville?
There are 939 real estate agents in Somerville
Who are the top real estate agents in and around Porter Square?
Top selling real estate agents in and around Porter Square include John ONeil, John Dean, David Ladner, Lisa Chinatti and Kate Duggan.
What is the best time of year to sell a home in the Somerville area?
Based on the last 24 months of verified MLS market data, homes in the Somerville area sell fastest and closest to asking price when they go under contract in May. To hit that window, plan to list around April.
What is the median home value in Porter Square?
The median home value in Porter Square is $887,316, a gain of 53% over the past five years.
Free Real Estate Calculators
Planning a move in Somerville? Run the numbers first.