Condos for Sale in Seaford, NY
Listings
Too small a sample to be statistically stable —
OneKey® MLS Data
Condos for Sale in Seaford, NY
Nassau · Suffolk · Queens · Brooklyn
Listings courtesy of OneKey® MLS as distributed by MLS GRID.
Based on information submitted to the MLS GRID as of October 21, 2026 4:00 am. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
Personal-use terms and which listings this site shows: MLS & Data Disclosures
Seaford market
Sold homes · hamlet boundary · NassauSeaford recorded 116 single-family sales in the past 12 months, against 102 in the 12 months before, and 22 homes for sale now. They sold in a median of 22 days, at about 101.6% of final asking price.
The median sale price is down about 1% on the 12 months before (116 sales against 102).
That works out to about 2.3 months of single-family supply.
How we calculated this
- Single-family homes inside the official hamlet boundary (Census), Nassau County sales only, Sep 21, 2025 – Sep 21, 2026 (the 12 months before: Sep 21, 2024 – Sep 21, 2025). For sale = listed as of Oct 20, 2026.
- Supply = homes for sale now ÷ (sales in the 12 months ÷ 12), counted the same way in each area.
- Label from the site’s scale: under 2 months Hot Seller’s, under 4 Seller’s, 4–6 Balanced, over 6–8 Buyer’s, over 8 Strong Buyer’s. A warning is added when there are fewer than 10 sales or 5 homes for sale, or one more listing or sale would change the label.
- Only homes with a map position can be placed inside a boundary. A count is shown as unavailable when fewer than 90% of an area’s sales have one (here: about 99%).
Condos: 3 sold in 12 months · 1 for sale
Very little has changed hands in Seaford lately: 3 condo sales in the past 12 months, against 4 in the 12 months before, and 1 home for sale now. On its own, that works out to about 4 months of supply. With only 3 sales, a single sale would swing that figure sharply, so the hamlet’s own numbers can’t tell you which way the market is leaning.
The three areas that share its border tell a steadier story. Massapequa, North Wantagh and Wantagh sold 22 condos over the same 12 months and have 2 for sale. That’s about 1.1 months of supply.
Only 2 homes for sale.
Conditions vary across these areas, from about 0.6 months of supply in North Wantagh to 4 in Wantagh. The combined figure describes the bordering areas, not Seaford itself.
How we calculated this
- Condos inside the official hamlet boundary (Census), Nassau County sales only, Sep 21, 2025 – Sep 21, 2026 (the 12 months before: Sep 21, 2024 – Sep 21, 2025). For sale = listed as of Oct 20, 2026.
- Supply = homes for sale now ÷ (sales in the 12 months ÷ 12), counted the same way in each area.
- Bordering areas: every village or hamlet in Nassau County whose official boundary runs along Seaford’s for at least 150 metres. The range uses bordering areas with 5 or more sales.
- Only homes with a map position can be placed inside a boundary. A count is shown as unavailable when fewer than 90% of an area’s sales have one (here: about 98%).
Co-ops: 1 sold in 12 months · 1 for sale
Very little has changed hands in Seaford lately: 1 co-op sale in the past 12 months, against 1 in the 12 months before, and 1 home for sale now. On its own, that works out to about 12 months of supply. With only 1 sale, a single sale would swing that figure sharply, so the hamlet’s own numbers can’t tell you which way the market is leaning.
The three areas that share its border are thin too. Massapequa, North Wantagh and Wantagh sold 1 co-ops over the same 12 months and have 0 for sale. That’s about 0 months of supply.
Limited local sales data, and no homes of this type for sale today. One more listing would make this about 12 months, a Strong Buyer's Market.
The combined figure describes the bordering areas, not Seaford itself.
How we calculated this
- Co-ops inside the official hamlet boundary (Census), Nassau County sales only, Sep 21, 2025 – Sep 21, 2026 (the 12 months before: Sep 21, 2024 – Sep 21, 2025). For sale = listed as of Oct 20, 2026.
- Supply = homes for sale now ÷ (sales in the 12 months ÷ 12), counted the same way in each area.
- Bordering areas: every village or hamlet in Nassau County whose official boundary runs along Seaford’s for at least 150 metres. The range uses bordering areas with 5 or more sales.
- Only homes with a map position can be placed inside a boundary. A count is shown as unavailable when fewer than 90% of an area’s sales have one (here: about 98%).