4 Tremont Street, Greenwich, Connecticut 06807

About this home

Currently set up as a multifamily in a single family zone. Exceptional opportunity in one of Cos Cob's most desirable neighborhoods! This charming two-family offers incredible versatility for investors, builders, and end users. Renovate the existing multifamily or explore conversion into a beautiful single-family residence. With current rents below market, there is immediate income and significant potential to optimize rental revenue. Buyers considering conversion can collect rent to offset carrying costs while pursuing plans and approvals. Features include hardwood floors, spacious living areas, a large rear deck, private backyard, attached garage, and driveway parking. A rare opportunity to unlock value in a sought-after Cos Cob location!

Flood risk: check the FEMA flood map for this address.

Schools

Taxes

Interior

Building & Exterior

Lot & Land

What it would cost per month

An estimate you can adjust — not a quote, and not an offer of credit. Principal and interest only, plus the taxes and HOA already on this listing. Insurance, PMI and closing costs are not included. Rate seeded at 6.5% (August 2026); change it to whatever your lender quotes.

What's nearby

Distances are straight-line from the property, not driving or walking routes. Places data © OpenStreetMap contributors.

Recent comparable sales

The 5 closest recent sales to this home, nearest match first — same building where possible, then the surrounding streets, widening only when there is nothing closer. These are recorded sale prices from the MLS, not estimates. No automated valuation is shown, because what a home is worth depends on condition, layout and timing that a formula cannot see — call John at 203·883·3399 to read them properly against this home.

5 comparable sales — median $1,395,000, ranging $1,125,000 to $2,503,000.

Within a 15-minute walk, sold in the last year
• 20 Ridge Road3 bd · 4 ba · 1,839 sq ft · 0.1 mi away
  $2,503,000$1,361/sq ft2026-07-31
• 50 Valleywood Road4 bd · 2 ba · 1,954 sq ft · 0.1 mi away
  $1,150,000$588/sq ft2026-07-07
• 24 Taylor Drive3 bd · 2 ba · 1,356 sq ft · 0.2 mi away
  $1,395,000$1,028/sq ft2026-05-11
• 34 1/2 Orchard Street4 bd · 3 ba · 2,126 sq ft · 0.2 mi away
  $2,022,000$951/sq ft2026-06-22
• 42 Mead Avenue3 bd · 2 ba · 1,833 sq ft · 0.4 mi away
  $1,125,000$613/sq ft2025-11-20

Listing & sale history

Every time this exact home has come to market in the MLS data this site tracks. Where a sale closed, the recorded sale price is shown; "asking" marks a price the home was listed at rather than what it sold for.

More homes in Greenwich

Closest in price to this one.

• 4 Hassake Road3 bed · 2 bath · 1,646 sq ft$1,495,000
• 105 Glenville Street3 bed · 2 bath · 1,713 sq ft$1,449,000
• 5 Griffith Road4 bed · 3 bath · 1,750 sq ft$1,429,000
• 61 Center Drive5 bed · 3 bath · 2,353 sq ft$1,575,000
• 38 Francis Lane4 bed · 2 bath · 1,605 sq ft$1,395,000
• 17 Thornhill Road4 bed · 3 bath · 1,990 sq ft$1,649,000

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