Sandra Sullivan Real Estate Agent - Douglas Elliman Real Estate

136 E 56th St Unit 4B, New York, NY For Sale $675,000 - listed by Sandra Sullivan — For Sale $675,000

Sandra Sullivan co-listing agent for 176-15 Croydon Rd, Jamaica, NY - sold for $975,000 — Sold $975,000 • Co-Listing Agent

136 E 56th St Unit 12C, New York, NY For Sale $715,000 - listed by Sandra Sullivan — For Sale $715,000

Sandra Sullivan buyer's agent for 1 Mount Morris Park W Unit 1A, New York, NY - sold for $1,300,000 — Sold $1,300,000

1474 3rd Ave Unit 15S, New York, NY For Sale $2,649,900 - co-listed by Sandra Sullivan — For Sale $2,649,900 • Co-Listing Agent

Sandra Sullivan

New York NY

Douglas Elliman Real Estate

17 Closed Sales

$15M Total Value

$435K - $2.2M Price Range

$880.7K Average Price

Prior 5 years

About Sandra

Home Types: Co-op, Condo, House, Townhouse

Years of Experience: 9

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	3
Total Value	$2,665,000
Average Sale Price	$888,333
Price Range	$780K - $975K

Seller Deals
Total Deals	7
Total Value	$5,620,000
Average Sale Price	$802,857
Price Range	$435K - $1.5M

Buyer Deals
Total Deals	1
Total Value	$1,300,000
Average Sale Price	$1,300,000

Seller Deals
Total Deals	16
Total Value	$13,671,900
Average Sale Price	$854,494
Price Range	$375K - $2.2M

Buyer Deals
Total Deals	1
Total Value	$1,300,000
Average Sale Price	$1,300,000

5 Year View

Neighborhoods Sandra is Experienced In

Sandra's Active Listings

$675,000
- 1 Bed
- 1 Bath
136 E 56th St

Unit 4B

New York, NY
Remarkable Price Drop! Best priced OVERSIZED ONE-BEDROOM with substantial storage and WASHER/DRYER! This freshly painted, move-in ready, peaceful home is awaiting the savvy designer to make it their own. Move right into your new apartment which uniquely offers a large WALK-IN CLOSET in the spacious bedroom, with several additional closets in the living area. Enjoy brilliant light

Sandra Sullivan Douglas Elliman Real Estate

$715,000
- 1 Bed
- 1 Bath
136 E 56th St

Unit 12C

New York, NY
RARE OPPORTUNITY! OVERSIZED 1-BEDROOM WITH WASHER/DRYER FOR AN UNBEATABLE VALUE! Move right into this freshly painted, move-in ready home just blocks from Central Park. Whole Foods and the best dining and shopping in Midtown! This impressive offering includes: - An open, updated kitchen with stainless steel appliances, smart custom storage and a Washer/Dryer. - The primary

Sandra Sullivan Douglas Elliman Real Estate

Co-Listing Agent

$2,649,900
- 4 Beds
- 3.5 Baths
- 2,000 Sq Ft
1474 3rd Ave

Unit 15S

New York, NY
Welcome to 1474 Third Avenue, apt 15S, a beacon of modern luxury living in the heart of New York's prestigious Upper East Side. This high-end, 4-bedroom, 3.5-bathroom apartment encompasses over 2000 square feet of meticulously designed space, creating an ambiance akin to a sky-high mansion. Each of the four spacious bedrooms exudes comfort and style, while the three full bathrooms and

Sandra Sullivan Douglas Elliman Real Estate

Recently Sold

$910,000

Sold Feb 25, 2026
- 1 Bed
- 1 Bath
- 1,000 Sq Ft
136 E 56th St

Unit 4J

New York, NY
- 5% Below List
- $910/SF
- 163 Days On Market
- Current Est. Value $906K
Sandra Sullivan Douglas Elliman Real Estate

$780,000

Sold Oct 23, 2025
- 1 Bed
- 1 Bath
- 650 Sq Ft
453 W 19th St

Unit 5A

New York, NY
- 4% Below List
- $1,200/SF
- 173 Days On Market
- Current Est. Value $788K
Sandra Sullivan Douglas Elliman Real Estate

$485,000

Sold Feb 19, 2025
- 1 Bath
136 E 56th St

Unit 7E

New York, NY
- 7% Below List
- 199 Days On Market
- Current Est. Value $515K
Sandra Sullivan Douglas Elliman Real Estate

$1,450,000

Sold Aug 13, 2024
- 2 Beds
- 3 Baths
430 E 57th St

Unit 5D

New York, NY
- 26% Below List
- 716 Days On Market
- Current Est. Value $1M
Sandra Sullivan Douglas Elliman Real Estate

$435,000

Sold Jul 18, 2024
- 1 Bath
- 600 Sq Ft
136 E 56th St

Unit 2G

New York, NY
- 13% Below List
- $725/SF
- 195 Days On Market
- Current Est. Value $493K
Sandra Sullivan Douglas Elliman Real Estate

$585,000

Sold Jul 2, 2024
- 1 Bed
- 1 Bath
- 1,000 Sq Ft
136 E 56th St

Unit 7J

New York, NY
- 26% Below List
- $585/SF
- 178 Days On Market
- Current Est. Value $592K
Sandra Sullivan Douglas Elliman Real Estate

$1,175,000

Sold Jan 16, 2024
- 2 Beds
- 2 Baths
- 1,500 Sq Ft
136 E 56th St

Unit 4 MN

New York, NY
- 15% Below List
- $783/SF
- 228 Days On Market
Sandra Sullivan Douglas Elliman Real Estate

$375,000

Sold Feb 3, 2023
- 1 Bath
320 E 42nd St

Unit 1403

New York, NY
- 11% Below List
- 58 Days On Market
Sandra Sullivan Douglas Elliman Real Estate

$477,900

Sold Aug 17, 2022
- 1 Bath
136 E 56th St

Unit 4G

New York, NY
- 2% Below List
- Current Est. Value $458K
Sandra Sullivan Douglas Elliman Real Estate

Agent License: New York 10401296682

Sandra Sullivan

(833) 497-4464

Homes for Sale by City

Sandra Sullivan

About Sandra

Transaction History

Seller Deals

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Sandra is Experienced In

Sandra's Listings and Deals

Sandra's Active Listings

Recently Sold