April 15, 2026 · Updated April 17, 2026
Nassau County's median single-family home price hit $850,000 in February 2026 — up 6.3% year-over-year — while island-wide inventory fell to just 11,793 homes. The week of April 12–18 is the top listing window of the year. Here's what it means if you're buying or selling on Long Island right now.
The Long Island real estate market hit a significant milestone this spring: the median single-family home price in Nassau County reached $850,000 in February 2026 — a 6.3% jump year-over-year. Island-wide inventory dropped to 11,793 homes, down 11.4% from last year, leaving just 2.9 months of supply on the market.
Two words: seller's market. At 2.9 months of supply, inventory is tight by any measure — a balanced market typically sits around six months. The 6.3% year-over-year price gain in Nassau isn't a blip. It's part of a sustained run that's been pushing Long Island home values upward since 2020.
At $850,000, a conventional 20% down payment is $170,000 — and that's before closing costs, which on Long Island typically run 2–4% of the purchase price. For buyers who can't stretch to the Nassau median, there's relative value to be found in towns like Brentwood, Bay Shore, and parts of central Suffolk.
Clean offers win. In a market with 2.9 months of supply, sellers are often fielding multiple bids. Waiving inspection contingencies entirely is risky — but offering a shorter inspection period signals seriousness. An escalation clause tied to a realistic ceiling is a smart move in multiple-offer situations.
Real estate analytics from Realtor.com and the National Association of Realtors consistently show that homes listed in mid-April sell faster and closer to asking price than homes listed any other time of year.
The biggest sale story of the spring came out of the Town of Islip: a waterfront estate at 300 Maple Street sold for $3.85 million — the highest sale price in Town of Islip history. The property includes a helipad, a private boat ramp, and a 7-car garage.
