Condos for Sale in Mount Sinai, NY
Listings
Too small a sample to be statistically stable —
OneKey® MLS Data
Condos for Sale in Mount Sinai, 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 November 6, 2026 3:00 pm. 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
Mount Sinai market
Sold homes · hamlet boundary · SuffolkA few sales here could not be placed on the map, so counts may run slightly low.
Seller's MarketMount Sinai recorded 92 single-family sales in the past 12 months, against 102 in the 12 months before, and 17 homes for sale now. They sold in a median of 28 days, at about 100% of final asking price.
The median sale price is up about 1% on the 12 months before (92 sales against 102).
That works out to about 2.2 months of single-family supply.
How we calculated this
- Single-family homes inside the official hamlet boundary (Census), Suffolk County sales only, Oct 7, 2025 – Oct 7, 2026 (the 12 months before: Oct 7, 2024 – Oct 7, 2025). For sale = listed as of Nov 5, 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 94%). A few sales here could not be placed on the map, so counts may run slightly low.
Condos: 31 sold in 12 months · 14 for sale
A few sales here could not be placed on the map, so counts may run slightly low.
Balanced MarketMount Sinai recorded 31 condo sales in the past 12 months, against 49 in the 12 months before, and 14 homes for sale now. They sold in a median of 31 days, at about 100% of final asking price.
The median sale price is up about 11% on the 12 months before (31 sales against 49).
That works out to about 5.4 months of condo supply.
How we calculated this
- Condos inside the official hamlet boundary (Census), Suffolk County sales only, Oct 7, 2025 – Oct 7, 2026 (the 12 months before: Oct 7, 2024 – Oct 7, 2025). For sale = listed as of Nov 5, 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 91%). A few sales here could not be placed on the map, so counts may run slightly low.