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Allison J. Grosse
Licensed Associate Real Estate Broker
REALTOR®, SRS,CBR,CHMS,RSSP,SFR,CRET
Cell: (631) 495-3424
Find a Home
Sell a Home

We Love What We Do and You'll Love It Too!

About Allison J. Grosse, SRS,CBR,CHMS,RSSP,SFR,CRET

As one-half of TeamGrosse, Allison Grosse is a lifelong resident of East Islip and a long-time licensed real estate agent. Deeply and actively entrenched in multiple community projects, Allison is a member of the Ladies' Ancient Order of Hibernians (LAOH) and the Rotary Club of Islip. Allison and her husband John (the other half of TeamGrosse!) spearheaded the 9-11 Memorial Sitting Garden at East Islip’s JFK Elementary School. They helped fund the construction of the East Islip Soccer Club Building with the very successful First Soccerribean Fundraiser. Allison and John have been consistently successful and extremely knowledgeable licensed real estate salespersons with Howard Hanna-Coach Realtors, selling many homes right in their own hometown. Allison has recently continued her training and expertise in real estate by becoming a Licensed Broker Associate with Coach Realtors as well!

Awards:
2022 & 2021 – Office Elite
2022 – Gold Level Achievement, Companywide
2021 – Silver Level Achievement, Companywide
2023 - Bronze Level Achievement, Companywide

Visit TeamGrosse - John and Allison on Facebook

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Customer Reviews

  • Carl V.

    Awesome Again!!

  • Jim M.

    From start to finish, my experience with Allison Grosse was extremely seamless. Her hands-on approach to the real estate business made my entire process simple, convenient, easy and rewarding. ... read more

  • Dan M.

    Allison Grosse is an outstanding realtor. She assisted me through every phase of the sale right up to closing and beyond. Her dedication, patience and professionalism are greatly appreciated! I would... read more

  • Christine M.

    Allison was amazing! Always reachable, very present and invested in my search. She made it happen.

  • Ronald D.
    Seller

    Everything went well!

  • Noranne S.
    Seller

    Allison is very easy to work with. She was very friendly and attentive and wrote down all of our wishes and concerns. She was always available for questions as they arose, and was very helpful and ... read more

Disclaimer: 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 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. Information on this site was last updated 03/03/2026. The listing information on this page last changed on 03/03/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Tue 03/03/2026 9:05:16 AM EST) or OneKey MLS (last updated Tue 03/03/2026 8:58:34 AM EST). Real estate listings held by brokerage firms other than Howard Hanna | Coach Realtors may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
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Agency License Information: https://www.coachrealtors.com New York State Real Estate Broker Principal Office License Number: 10991237973


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