71 Penn Street, Lake Grove, NY 11755

$799,999 · 6 bed · 3 bath · 2,435 sq ft · built 1952 · MLS# 1056192 · Active

Welcome to 71 Penn Street, a beautifully renovated, move-in-ready Colonial in the heart of Lake Grove. This spacious home features 6 bedrooms and 4 full bathrooms, offering a flexible floor plan with generous living space to accommodate today’s lifestyle. The updated interior showcases modern finishes, an open and inviting layout, oversized bedrooms, and abundant natural light throughout. The finished lower level with a separate outside entrance provides additional versatile living space. Outside, enjoy a spacious driveway, private backyard, and beautifully maintained grounds. Conveniently located just minutes from Smith Haven Mall,…

Single-family homes in the Sachem Central School District sold for a median of $679,000 (typically $600,000–$750,000) across 523 recorded sales between Oct 7, 2025 and Oct 2, 2026, up 4.5% on the 12 months before. This home's $799,999 list price sits in the upper single-family tier for the Sachem Central School District.

ZIP 11755 has about 3.3 months of single family inventory — seller's market. Demand is outpacing supply, so homes sell quickly with firm pricing and limited room to negotiate.

At about $14,465 a year, this home's property tax runs roughly 32% above the $11,000 typical for Sachem Central School District. Suffolk bills combine town, school and special-district levies, so two homes at the same price in neighboring districts can carry materially different taxes. 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