21 E Saint Marks Place, Valley Stream, NY 11580

$874,999 · 4 bed · 2 bath · 2,228 sq ft · built 1922 · MLS# 1056326 · Active

A legal two-family with income already in place! Welcome to 21 E Saint Marks Place, set on a 50-by-100-foot lot in Valley Stream. Whether you’re looking to add to your investment portfolio or explore the possibilities of two-family ownership, this property offers space, parking, and two established rental units. The first-floor apartment spans approximately 962 square feet and features a spacious living room, two bedrooms, a full bathroom, and a functional kitchen. Upstairs, the approximately 817-square-foot second-floor apartment offers a similar two-bedroom layout, with the added benefit of a walk-in…

Two-to-three-family homes in the Valley Stream Union Free School District 13 sold for a median of $930,000 (typically $860,000–$950,000) across 9 recorded sales between Oct 16, 2025 and Sep 15, 2026. Too small a sample to be statistically stable — that median rests on 9 recorded sales, so a single sale moves it substantially. Treat it as a starting point rather than a market reading.

ZIP 11580 has about 5.7 months of multi-family inventory — balanced market. Supply and demand are roughly even, so buyers and sellers share leverage with fair, predictable pricing.

At about $12,980 a year, this home's property tax is in line with the roughly $13,000 typical for Valley Stream Union Free School District 13. Nassau assessments run on a multi-year cycle, so the assessed value behind this bill can lag what the home actually sells for today. A sale does not automatically reset it, and exemptions such as STAR, Senior or Veteran move the number as well — a new owner's bill is often not the same as the seller's.

OneKey MLS (recorded LI sales, trailing 12mo) + actual tax