Mark Stempel Real Estate Agent - Blue Island Homes NY LLC

249 Bedford Ave, New Hyde Park, NY Pending $989,000 - listed by Mark Stempel — Pending $989,000

Mark Stempel co-listing agent for 11 Ocean Watch Ct, Freeport, NY - sold for $899,000 — Sold $899,000 • Co-Listing Agent

756 Guy Lombardo Ave, Freeport, NY For Sale $974,900 - co-listed by Mark Stempel — For Sale $974,900 • Co-Listing Agent

Mark Stempel co-listing agent for 13 Ocean Watch Ct, Freeport, NY - sold for $959,000 — Sold $959,000 • Co-Listing Agent

8 Ocean Watch Ct, Freeport, NY For Sale $929,000 - co-listed by Mark Stempel — For Sale $929,000 • Co-Listing Agent

Mark Stempel

Bellmore NY

Blue Island Homes NY LLC

29 Closed Sales

$28.1M Total Value

$797.5K - $1.8M Price Range

$967.8K Average Price

Prior 5 years

About Mark

With more than 35 years of commercial real estate experience, I bring a strong background in investment sales, leasing, development, site selection, property valuation, and strategic real estate planning. Before founding Blue Island Homes, I spent nearly 30 years as Vice President of Real Estate for the Riese Organization, overseeing a substantial and diverse commercial property portfolio throughout the New York metropolitan area. My Master of Architecture degree gives me a unique ability to evaluate properties from both a real estate and design perspective. Today, as Owner and Broker of Blue Island Homes, I lead the company’s Commercial Division, representing property owners, investors, developers, landlords, and tenants throughout Long Island and the greater New York market.

Home Types: Condo, House, Townhouse, Multifamily

Years of Experience: 33

Education: Masters in Architecture, University of Maryland.

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	10
Total Value	$9,156,000
Average Sale Price	$915,600
Price Range	$849K - $1.2M

Seller Deals
Total Deals	27
Total Value	$26,351,000
Average Sale Price	$975,963
Price Range	$480K - $1.8M

Seller Deals
Total Deals	29
Total Value	$28,067,500
Average Sale Price	$967,845
Price Range	$480K - $1.8M

Areas Mark is Experienced In

Mark's Listings and Deals

Mark's Active Listings

Co-Listing Agent

$974,900
- 4 Beds
- 3 Baths
- 2,420 Sq Ft
756 Guy Lombardo Ave

Freeport, NY
Welcome to this stunning 4-bedroom, 3-bath hi-ranch waterfront home, ideally located on the Woodcleft Canal in the heart of Freeport’s famous Nautical Mile. A true boater's paradise, just in time for summer!Set on a 50x150 lot, this spacious home features an open-concept layout with vaulted ceilings, skylights, a fireplace, and abundant natural light, perfect for everyday living and

Mark Stempel Blue Island Homes NY LLC

Co-Listing Agent

$929,000
- 3 Beds
- 3 Baths
- 1,946 Sq Ft
8 Ocean Watch Ct

Freeport, NY
Introducing this new construction, to be built waterfront townhome, now available for sale in Ocean Watch at Harbor Pointe-a serene, gated luxury waterfront community. Step inside to discover all-new interiors boasting 9-foot ceilings on the first floor, complemented by 7-foot high 1 3/4" solid wood doors. The second floor features airy 9' ceilings, with a touch of grandeur from vaulted ceilings

Mark Stempel Blue Island Homes NY LLC

Co-Listing Agent

$949,000
- 3 Beds
- 3 Baths
- 1,946 Sq Ft
12 Ocean Watch Ct

Freeport, NY
Introducing this new construction, to be built waterfront townhome, now available for sale in Ocean Watch at Harbor Pointe-a serene, gated luxury waterfront community. Step inside to discover all-new interiors boasting 9-foot ceilings on the first floor, complemented by 7-foot high 1 3/4" solid wood doors. The second floor features airy 9' ceilings, with a touch of grandeur from vaulted ceilings

Mark Stempel Blue Island Homes NY LLC

Co-Listing Agent

$929,000
- 3 Beds
- 3 Baths
- 2,052 Sq Ft
9 Ocean Watch Ct

Freeport, NY
Introducing this new construction, to be built waterfront townhome, now available for sale in Ocean Watch at Harbor Pointe-a serene, gated luxury waterfront community. Step inside to discover all-new interiors boasting 9-foot ceilings on the first floor, complemented by 7-foot high 1 3/4" solid wood doors. The second floor features airy 9' ceilings, with a touch of grandeur from vaulted ceilings

Mark Stempel Blue Island Homes NY LLC

Co-Listing Agent

$1,079,000
- 3 Beds
- 3 Baths
- 2,294 Sq Ft
7 Ocean Watch Ct

Freeport, NY
Introducing our largest unit, new construction, soon-to-be-finished waterfront townhome with beautiful passenger elevator, available for sale in Ocean Watch at Harbor Pointe-a serene, gated luxury waterfront community. Step inside to discover all-new interiors boasting 9-foot ceilings on the first floor, complemented by 7-foot high 1 3/4" solid wood doors. The second floor features airy 9'

Mark Stempel Blue Island Homes NY LLC

$989,000

Pending
- 3 Beds
- 2.5 Baths
- 1,784 Sq Ft
249 Bedford Ave

New Hyde Park, NY
Brand New Construction | Luxury Living in New Hyde ParkWelcome to 249 Bedford Avenue, a stunning newly completed custom residence that combines timeless design with today’s most sought-after finishes. This exceptional new construction home offers 3 spacious bedrooms, 2.5 luxurious bathrooms, and thoughtfully designed living spaces with 9-foot ceilings on every level, including the full

Mark Stempel Blue Island Homes NY LLC

Co-Listing Agent

$929,000

Pending
- 3 Beds
- 3 Baths
- 2,052 Sq Ft
10 Ocean Watch Ct

Freeport, NY
Introducing this new construction, to be built waterfront townhome, now available for sale in Ocean Watch at Harbor Pointe-a serene, gated luxury waterfront community. Step inside to discover all-new interiors boasting 9-foot ceilings on the first floor, complemented by 7-foot high 1 3/4" solid wood doors. The second floor features airy 9' ceilings, with a touch of grandeur from vaulted ceilings

Mark Stempel Blue Island Homes NY LLC

Awards and Designations

Best Boutique Real Estate Agency by Long Island Press 2025 & 2026
International Council of Shopping Centers (ICSC)

Agent License: New York 10491210966

Frequently Asked Questions

Who is Mark Stempel, and what is their real estate background?

How many homes has Mark Stempel sold in Bellmore, NY?

What is Mark Stempel's track record as a listing agent?

What areas does Mark Stempel serve?

How can I contact Mark Stempel?

Mark Stempel

(855) 938-2478

Blue Island Homes NY LLC

(855) 938-2478

Nearby Homes

Mark Stempel

About Mark

Transaction History

Seller Deals

Seller Deals

Seller Deals

Areas Mark is Experienced In

Mark's Listings and Deals

Mark's Active Listings

Awards and Designations

Frequently Asked Questions

Who is Mark Stempel, and what is their real estate background?

How many homes has Mark Stempel sold in Bellmore, NY?

What is Mark Stempel's track record as a listing agent?

What areas does Mark Stempel serve?

How can I contact Mark Stempel?