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9 Walnut Street, Cos Cob, CT 06807

Cos Cob
Local realty services provided by:CENTURY 21 North East
9 Walnut Street,Greenwich, CT 06807
$1,575,000
  • 0.52 Acres
  • Lots / Land
  • Active
Listed by: peter janis(203) 249-1013
Office: berkshire hathaway ne prop.(203) 869-0500
MLS#:24138306
Source:CT

Price summary

  • Price:$1,575,000

About this home

.52 Acre Buildable Lot with Existing Cottage - North Mianus Nestled at the end of a private road in the desirable North Mianus neighborhood, this .52-acre property offers a unique combination of privacy, potential, and flexibility. The lot is fully entitled with plans to build a 4,200 sq. ft. custom home, making it ideal for builders, investors, or end-users looking to create their dream residence. In addition to the new-construction opportunity, the property includes an existing 1-bedroom, 1-bathroom cottage that is grandfathered in-perfect for rental income, a guest house, or an in-law suite while the main home is being built. This is a rare offering in one of Greenwich's most sought-after areas, within the North Mianus Elementary and Eastern Middle School districts,

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Home facts

  • Listing ID #:24138306
  • Added:170 day(s) ago
  • Updated:April 25, 2026 at 11:34 AM

Structure and exterior

  • Lot area:0.52 Acres
  • Lot Features:Level Lot, On Cul-De-Sac, Rocky

Schools

  • High school:Greenwich
  • Middle school:Eastern
  • Elementary school:North Mianus

Utilities

  • Water:Public Water Connected

Finances and disclosures

  • Price:$1,575,000
  • Tax amount:$8,825 (July 2025-June 2026)

Features and amenities

  • Amenities:Park, Private School(s), Public Rec Facilities, Walk to Bus Lines
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