Home / New York / Islip / Joseph Grossmann
This is an unclaimed profile
Are you Joseph? Claim this profile to add a photo, bio, and start receiving leads directly.
Joseph Grossmann
UnclaimedPotter Real Estate · Islip, NY
Performance (last 12 months)
- Recent transactions
- 3
- Avg sale price
- $757,000
What Has Joseph Sold Recently?
Joseph Grossmann is a real estate agent with Potter Real Estate in East Islip. MLS records credit Joseph with 3 transactions over the last 12 months, worth $2.2 million in total sales volume. Across both sides of the deal, that is an average of $739,667 per transaction.
Does Joseph Work With Buyers or Sellers?
2 of those transactions were on the listing side, representing sellers, for $1.5 million. The other 1 were on the selling side, representing buyers, for $757,000. Most of the work, 67 percent, is on the listing side, so Joseph is more often the agent a seller hires.
The average price differs by side: $731,000 for listings and $757,000 for buyer-side sales.
How Does Joseph Compare in Islip?
By sales volume, Joseph ranks 18th of the 34 agents in Islip with recorded sales, ahead of 47 percent of them. The typical agent there closed 3 transactions worth $2.4 million.
Statewide, Joseph is 6234th by volume among 14,678 New York agents with recorded sales.
What Do Homes Sell For Near Joseph's Office?
In ZIP code 11751, the address on Joseph's MLS record, the median sold price was $630,000 across 9 sales between June 2026 and July 2026. Joseph's average transaction of $739,667 sits close to that median.
Who Else Works at Potter Real Estate?
Joseph is listed with Potter Real Estate, East Islip. No other agent shares that office record in our data.
Who Are the Other Busy Agents in Islip?
These other Islip agents also have recorded sales in the last 12 months. They are ranked by sales volume. Compare a few before you pick someone to interview.
- Michael Watts17.5 transactions · 14M volume
- Kyle Roskot5 transactions · 13.4M volume
- Michael Watts18.5 transactions · 11.3M volume
- David Sanders7 transactions · 9.8M volume
- Stacy Moore12.5 transactions · 8.7M volume
- Maria Wilbur13 transactions · 8.6M volume
Where Does This Profile Come From?
The numbers on this page come from public MLS and license records, last updated May 2026. Transaction counts and dollar volumes cover the last 12 months and are credited to the agent named on each record. Joseph has not claimed this profile, and a listing here does not mean Joseph or Potter Real Estate endorses or is affiliated with Expert Agents Near Me. We collect no reviews, so there are no ratings from us on this page.
Common Questions About Joseph Grossmann
How many homes has Joseph Grossmann sold recently?
MLS records show 3 transactions for Joseph Grossmann in the last 12 months, with $2.2 million in total volume.
Does Joseph Grossmann represent buyers or sellers?
2 of those transactions were on the listing side, representing sellers, for $1.5 million. The other 1 were on the selling side, representing buyers, for $757,000. Most of the work, 67 percent, is on the listing side, so Joseph is more often the agent a seller hires.
How does Joseph Grossmann compare to other agents in Islip?
By sales volume, Joseph ranks 18th of the 34 agents in Islip with recorded sales, ahead of 47 percent of them.
What is the median sold price in 11751?
$630,000 across 9 sales between June 2026 and July 2026.
Which brokerage is Joseph Grossmann with?
Joseph Grossmann is listed with Potter Real Estate, in East Islip. The mailing address on the MLS record is in Islip, NY.
Is this Joseph Grossmann's own page?
No. It is compiled from public records and was not written by Joseph. Agents can claim a profile to add a photo and bio and to receive leads directly.
Contact Joseph
Sign in to message Joseph
A free account stops bots and brokers from scraping our agents and keeps your message authenticated. Takes ~30 seconds.