21 Glen Hollow Drive #G9, Holtsville, NY 11742

21 Glen Hollow Drive #G9, Holtsville, NY 11742

$349,990 · 2 bed · 1 bath · 1,080 sq ft · built 1974 · MLS# 1045878 · Active

Welcome to 21 Glen Hollow Road in Holtsville! This beautifully maintained upper-level two-bedroom, one-bath co-op is ideally situated in one of the community’s most desirable and private locations. Step outside onto your balcony and enjoy a peaceful, tree-lined setting with exceptional privacy—the perfect spot for morning coffee or relaxing at the end of the day. Inside, you’ll find gleaming hardwood floors throughout, a spacious living room, formal dining room perfect for entertaining, and an updated kitchen. The brand-new bathroom has been beautifully renovated, adding a fresh, modern touch to this…

Co-ops in the Patchogue-Medford Union Free School District sold for a median of $275,000 (typically $250,000–$300,000) across 40 recorded sales between Oct 16, 2025 and Sep 30, 2026, up 1.9% on the 12 months before. This home's $349,990 list price sits in the luxury co-op tier for the Patchogue-Medford Union Free School District.

ZIP 11742 has about 1.9 months of co-op inventory — hot seller's market. Severe inventory shortage — homes sell fast and often draw multiple offers over asking, giving sellers maximum leverage.

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

Listings courtesy of OneKey® MLS as distributed by MLS GRID.

Based on information submitted to the MLS GRID as of October 10, 2026 10:00 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.

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Holtsville Market Trend

Holtsville has tightened over the past 2 years: the median sale price has advanced roughly 7% year over year to near $628K, and sales have generally been closing faster. Conditions continue to favor sellers; if the trend holds, prices could keep firming. Alongside that firming trend, note that the roughly $585K blended median combines very different property types, so it may not describe any single one: of 247 recent sales, single-family made up the largest share at about 63% with the highest median near $691K, condos about 23% near $440K, co-ops about 14% near $280K. Because co-ops, though not the most common, is priced far enough from the rest to pull the blend down, the blended figure tends to sit below the single-family median rather than above it — so a typical single-family house has tended to sell closer to $691K, roughly $106K over the headline number. These are past medians, not predictions or guarantees, and individual properties vary widely; anyone weighing a specific property should review current comparable sales for that property type.

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Looking for off-market opportunities or a property attorney's read on this listing? Contact Joseph DeVito — Lic. R.E. Associate Broker + NY-licensed real estate attorney.