About 21 Clarkson Lane
WELCOME to 21 CLARKSON LANE. Set at the end of a coveted cul-de-sac and surrounded by approximately five acres of extraordinary privacy, 21 Clarkson Lane is a rare Connecticut estate offering an exceptional combination of refined living, resort-style amenities, and remarkable future possibilities. The property encompasses two separate building lots, including an approximately 1.9-acre approved buildable lot that is already established and does not require subdivision. Whether envisioned for a future residence, guest house, equestrian use, tennis court, additional acreage, or simply treasured open space, this offering provides a level of flexibility seldom found in the marketplace. A CONNECTICUT COUNTRY SETTING Stone walls, pastoral views, mature landscaping, and exceptional privacy create an idyllic country retreat. The grounds have been thoughtfully designed for both everyday enjoyment and memorable entertaining. A spectacular pool, new bluestone patio, and beautifully appointed outdoor kitchen create a private resort-like environment. A large fenced garden offers abundant space for fruits and vegetables, complemented by an established orchard. The impressive multi-purpose barn adds another dimension-ideal for outdoor toys and equipment, or easily imagined as a studio, pool house, game room, workshop, or creative retreat.
Features of 21 Clarkson Lane
| MLS® # | 24197967 |
|---|---|
| Price | $2,250,000 |
| Bedrooms | 5 |
| Bathrooms | 6.00 |
| Full Baths | 4 |
| Half Baths | 2 |
| Square Footage | 4,190 |
| Acres | 4.30 |
| Type | Single Family For Sale |
| Style | Colonial |
| Status | Active |
Community Information
| Address | 21 Clarkson Lane |
|---|---|
| Area | N/A |
| City | Killingworth |
| County | Middlesex |
| State | Connecticut |
| Zip Code | 06419 |
Amenities
| Features | Energy Star Rated, Active Solar, Generator, Geothermal Heat, Programmable Thermostat |
|---|---|
| Parking Spaces | 6 |
| Parking | Attached Garage, Paved, Driveway |
| # of Garages | 3 |
| Is Waterfront | No |
| Waterfront | Not Applicable |
| Has Pool | Yes |
| Pool | In Ground Pool |
Interior
| Interior Features | Open Floor Plan |
|---|---|
| Appliances | Gas Range, Subzero, Washer, Dryer, Wine Chiller |
| Heating | Solar, Geothermal |
| Cooling | Ceiling Fans, Central Air, Zoned |
| Fireplace | Yes |
| # of Fireplaces | 3 |
| Has Basement | Yes |
| Basement | Full, Fully Finished |
Exterior
| Exterior | Vinyl Siding, Wood |
|---|---|
| Lot Description | Secluded, Borders Open Space, Dry, Level Lot, Professionally Landscaped, Open Lot |
| Roof | Asphalt Shingle |
| Foundation | Concrete |
School Information
| Elementary | Killingworth |
|---|---|
| Middle | Haddam-Killingworth |
| High | Haddam-Killingworth |
Additional Information
| Date Listed | August 13th, 2026 |
|---|---|
| Days on Market | 27 |
| Zoning | R-02 |
| RE / Bank Owned | No |
Listing Details
| Office | William Raveis Real Estate |
|---|
