Denise G.
Wallenstein Dual Lic
Brown Harris Stevens Real Estate Agent Denise G. Wallenstein Dual Lic

Licensed Real Estate Salesperson
Office: 13105 Main Road, P.O. Box 6, Mattituck, NY
[email protected]
o: 631-477-8005
m: 917-520-3032

About Denise

Denise Wallenstein brings to Brown Harris Stevens a wealth of sales and marketing expertise combined with a passion for real estate. She is recognized for her strong interpersonal relationships, leadership abilities, attentiveness to detail, and responsiveness.

For 20+ years, Denise has been a marketing partner and creative consultant. She serves as principal of DGW Promos, a boutique-style promotional products agency that services a broad range of clients, ranging from community organizations to worldwide luxury clients and brands. Prior to DGW Promos, Denise worked in Advertising Sales for Sesame Workshop. There, she was a top sales achiever receiving numerous awards during...

Denise Wallenstein brings to Brown Harris Stevens a wealth of sales and marketing expertise combined with a passion for real estate. She is recognized for her strong interpersonal relationships, leadership abilities, attentiveness to detail, and responsiveness.

For 20+ years, Denise has been a marketing partner and creative consultant. She serves as principal of DGW Promos, a boutique-style promotional products agency that services a broad range of clients, ranging from community organizations to worldwide luxury clients and brands. Prior to DGW Promos, Denise worked in Advertising Sales for Sesame Workshop. There, she was a top sales achiever receiving numerous awards during her tenure.

Denise’s longstanding relationships attest to her quality of work. Her dedication, creativity, and attention to detail have made her an integral component of many organizations and businesses nationwide. Confident and driven, she knows how to oversee a project from start to finish.

Denise is a member of the Anna Kahn Team at Brown Harris Stevens. The Anna Kahn Team is a prominent Licensed Associate Real Estate Broker Team that has ranked consistently in the top 1% of broker teams in New York City and Nationwide by the Wall Street Journal. Anna Kahn ranked top 1% Agent 2023 Brown Harris Stevens and she has over $2 billion in sales. A native New Yorker, Anna has over 25 years of residential real estate experience. Denise is proudly working alongside the best.

Over the past few years, Denise has truly embraced the North Fork style of living, relishing in the area’s calm country feel, the serene waters, picturesque vineyards, and local dining. In her leisure time, she enjoys farm and vineyard yoga, tennis, reading, and simply relaxing on the beach. Cooking and dining with friends, and trying creatively crafted cocktails, are key ingredients to her happiness. She has a passion for travel and loves to embrace new cultures. As a good cook, Denise always schedules a cooking class in whatever country she finds herself in.

13105 Main Road, P.O. Box 6
Mattituck, NY 11952
Brown Harris Stevens of the Hamptons, LLC

Press Mentions

6sqft - 6/12/2023

Former North Fork general store is now a sweet little $595K beach cottage with separate studio

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Behind the Hedges - 6/2/2023

Cozy Baiting Hollow Cottage, Once a Country Store, Offered at $595K

Read More

North Forker - 6/1/2023

North Fork Open Houses: 10 listings for the week of June 2

Read More

Current Market Reports

Manhattan Market Report 3Q 2023
Manhattan Market Report
Brooklyn Market Report
Queens Report
Hamptons Report
Connecticut Market Report:
Connecticut Market Report:
Connecticut Market Report:
Palm Beach: 2nd Quarter 2023
Miami Market Report
Riverdale
Hudson Valley
Last Week In Research
Miami: 2nd Quarter 2018

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