About this home
Rock House Farm, c.1765. One of Wilton's most treasured historic estates, this extraordinary former dairy farm blends nearly three centuries of history with the comforts of modern living. Originally built by Reuben Olmstead in 1765, expanded in the 1800s, and thoughtfully renovated and enlarged in 1997, the estate has been beautifully preserved for generations. Set on six spectacular acres bordered by 14 acres of permanently protected open space, the property offers exceptional privacy and breathtaking pastoral views. The gracious main residence spans over 6,000 square feet with five bedrooms, five full and one half baths, and seven fireplaces. A charming two-bedroom, two-bath guest cottage with full kitchen, laundry and three fireplaces evokes the charm of the English countryside. Completing the estate is a magnificent four-story red dairy barn, a rare architectural treasure and lasting reminder of the property's rich agricultural heritage. Ancient stone walls, rolling lawns, specimen trees and timeless beauty create one of Fairfield County's most remarkable country estates.
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
Real streets from OpenStreetMap; distances are straight-line from the property, not driving routes.
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 $1,450,000, ranging $1,250,000 to $2,111,111.
- $1,450,000$359/sq ft2025-11-17
- $2,000,000$342/sq ft2026-08-31
- $1,345,000$352/sq ft2026-06-04
- $2,111,111$437/sq ft2026-01-16
- $1,250,000$276/sq ft2025-07-08
Public record
From the Wilton assessor's public property record. These figures describe the property as the town has it on file and can differ from the listing — a finished basement or an addition may not be reflected in the assessor's living area.
More homes in Wilton
Closest in price to this one.

