$693,000
3 bd1 ba936 sqft Sea Cliff, NY
3 bd1 ba936 sqft
Sea Cliff, NY
Sold 21 days ago
BuyerSeller
Get to know Dawn Costello
Licensed Real Estate Salesperson
Dawn Costello: Sea Cliff & North Shore’s Digital Marketing Powerhouse | Fast, Profitable Home Sales
Are you searching for a real estate agent who will make your home stand out and sell for maximum value—fast?
I’m Dawn Costello, a local expert who brings Fortune 500 marketing power to every listing in Sea Cliff, North Shore School District, Glen Cove, Roslyn, Locust Valley and the surrounding area. My 20+ years with brands like HGTV, AOL, and Food N...
Specialties
8 Years of experienceBuyer's AgentListing AgentRelocationForeclosureCommercial PropertiesFirst Time HomebuyersInvestment PropertiesRentalsLuxury Homes
Dawn Costello's sales and listings (31)
This map and property list shows the most recent 100 sales and 100 listings
Sold
For sale
Sold (30)
- $693,000
- 3 bd
- 1 ba
- 936 sqft
16 Altamont Avenue, Sea Cliff, NY 11579Sold 21 days agoBuyerSeller
- $430,000
- 2 bd
- 1 ba
- 900 sqft
7 Edwards #2G, Roslyn Heights, NY 11577Sold 5 months agoBuyerSeller
- $1,100,000
- 4 bd
- 3 ba
- -- sqft
10 Sherman, Glen Cove, NY 11542Sold 6 months agoBuyer
- $500,000
- 2 bd
- 1 ba
- 540 sqft
117 12th Avenue, Sea Cliff, NY 11579Sold 10 months agoBuyer
- $979,000
- 4 bd
- 3 ba
- 3,050 sqft
43 E Harwood Drive, Glen Cove, NY 11542Sold 1 year agoSeller
For sale (1)
- $1,098,000
- 3 bd
- 2 ba
- 1,804 sqft
28 Reynolds Road, Glen Cove, NY 11542House for SaleNew roof
Listing by: Douglas Elliman Real Estate
Dawn Costello's reviews (33)
- 5.0
- 8/31/2026
- • Pia Viana
Sold a home in 2026.
I cannot say enough wonderful things about **Dawn Costello at Douglas Elliman**\. She truly went above and beyond to successfully sell my home, and I am incredibly gratef...I cannot say enough wonderful things about **Dawn Costello at Douglas Elliman**\. She truly went above and beyond to successfully ...5.0- 5/26/2026
- • rheanewman16
Sold a home in 2026.
Dawn Costello did an excellent job in every step of selling my co-op. She knows the market very well and gave me regular updates as to the comp sales in my complex. We ca...Dawn Costello did an excellent job in every step of selling my co-op. She knows the market very well and gave me regular updates a... - 5.0
- 5/19/2026
- • Giovanni Giuga
Found a tenant for a home.
Dawn was an absolute pleasure to work with throughout the entire rental process. She was communicative, organized, and professional every step of the way. Her due diligen...Dawn was an absolute pleasure to work with throughout the entire rental process. She was communicative, organized, and professiona...5.0- 3/26/2026
- • william hollingsworth
Bought a Single Family home in 2026 in Glen cove, NY.
Dawn, recognized my needs in downsizing to a one level house in Glen Cove. My wife is bedridden and we needed to have a house in which she could easily access with a wal...Dawn, recognized my needs in downsizing to a one level house in Glen Cove. My wife is bedridden and we needed to have a house in ... - 5.0
- 3/1/2026
- • Veronika Dolar
Found a tenant for a home.
We had a wonderful experience working with Dawn! From the very beginning, she was incredibly helpful, knowledgeable, and generous with her time and advice. She took the t...We had a wonderful experience working with Dawn! From the very beginning, she was incredibly helpful, knowledgeable, and generous ...5.0- 8/11/2025
- • Erin Connell
Sold a Single Family home in 2025 in Locust valley, NY.
Dawn is simply the best! She’s been with us through every stage—helping us find the perfect rental, guiding us through buying our first home, and then selling it for a fa...Dawn is simply the best! She’s been with us through every stage—helping us find the perfect rental, guiding us through buying our ... - 5.0
- 8/8/2025
- • don meyer
Bought a Condo home in 2025 in Forest hills, Queens, NY.
Dawn went above and beyond throughout the entire process of my CO-OP purchase. Her professionalism, attention to detail, and constant support made everything smooth and s...Dawn went above and beyond throughout the entire process of my CO-OP purchase. Her professionalism, attention to detail, and const...5.0- 6/19/2025
- • TaylorCuster9
Helped me rent a Multiple Occupancy home in Oyster bay, NY.
Our experience was wonderful! Dawn listened to what we were looking for and helped us find our perfect next step. Moving from out of town, she helped us learn about the a...Our experience was wonderful! Dawn listened to what we were looking for and helped us find our perfect next step. Moving from out ... - 5.0
- 1/20/2025
- • frank longobucco
Found a tenant for a Multiple Occupancy home in Glen cove, NY.
Dawn was an absolute pleasure to work with. Her professionalism and expertise helped us understand the current rental landscape and help set the right rental rate for ou...Dawn was an absolute pleasure to work with. Her professionalism and expertise helped us understand the current rental landscape a...5.0- 6/14/2024
- • Bbokovsky
Bought a Condo home in 2024 in Roslyn heights, NY.
Highly recommended!!! Let's start from the end. --- What I said after closing. " You are awesome. You are like a relative!" ----How I found Dawn My son-in-law's mom r...Highly recommended!!! Let's start from the end. --- What I said after closing. " You are awesome. You are like a relative!" ---...
