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18 Birch Mill Road

Killingworth, Connecticut 06419

ACTIVE$2,350,000
Beds
4
Baths
2 | 1
SqFt
3,700
Acres
3.50
Year Built
1988
Matt Caiola

Matt Caiola

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MCMATT CAIOLALUXURY PROPERTIES
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WaterfrontTennis CourtPool1-Car Garage2 Fireplaces

About This Home

The Well Maiden Estate is a rare architecturally significant waterfront estate where cascading waterfalls, winding streams, and Kroopa Pond converge across 3.5 private acres to create one of Connecticut's most extraordinary residential settings. Just minutes from the Connecticut shoreline, marinas, beaches, and fine dining, and ideally positioned between New York City and Boston, this private luxury retreat offers a rare opportunity to own a legacy estate equally suited for year-round living or a distinguished second-home escape. Originally a historic fishing shack, the restored wing blends seamlessly with a striking architectural residence designed to embrace its natural surroundings. Soaring vaulted and barreled wood ceilings, walls of glass, rich hardwood and slate floors, and 2 grand living rooms with magnificent fieldstone fireplaces create warm, sophisticated spaces with captivating water views. Chef's kitchen with Garland 6-burner range, double ovens, flat-top grill, Sub-Zero refrigerator, farmhouse sink, pantry, and abundant cabinetry. Four bedrooms include a private upper-level primary suite with exposed beams, waterfront balcony, dressing room, walk-in closet, clawfoot soaking tub, and spa-inspired bath. Heated gunite saltwater pool and spa with waterfall, rare private clay tennis court, bluestone terraces, Viking grilling station, and outdoor shower complete this exceptional estate where architecture, nature, privacy, and luxury exist in perfect harmony.

Key Facts

City/Town
Killingworth
Neighborhood
N/A
Property / Style
Single Family · Colonial,Tudor
Year Built
1988
Days on Market
63 days
Beds
4
Baths
2 full · 1 half
Living Area
3,700 sq ft
Lot Size
3.50 acres
Garage / Parking
1 garage
Property Taxes
$18,831 / Annually

Market Snapshot

The Killingworth Market

Single Family · trailing 12 months

Median Days on Market

47

13 active listings

Median $ / Sq Ft

$311

13 active listings

Sale-to-List Ratio

100.0%

67 sales

How this home compares

List Price

$2.35M

vs $825,000 median

2.8× the median

Price / Sq Ft

$635

vs $311 median

2.0× the median

Days on Market

63 days

vs 47 days median

16 days longer than median

Based on 13 active and 67 closed sales (trailing 12 mo) of single family in Killingworth. Source: SmartMLS · As of August 14, 2026.

Location

18 Birch Mill Road, Killingworth, Connecticut

Property + 10 nearby

Estimate Your Payment

Estimated Monthly Payment

Rates: Freddie Mac PMMS via FRED
$14,446

per month

  • Principal & Interest$12,094
  • Property Taxes$1,569
  • Insurance$783
  • HOA$0

Estimates only. Actual rates, taxes, insurance, and HOA fees vary. Consult a lender for current rates.

Location

City/Town
Killingworth
Neighborhood
N/A
County
Middlesex

Residence

Property Type
Single Family
Style
Colonial,Tudor
Year Built
1988
New Construction
No/Resale
Living Area
3,700 sq ft

Schools

Elementary
Killingworth
High
Haddam-Killingworth

Interior

Heating
Hot Air
Heat Fuel
Oil
Cooling
Central Air
Fireplaces
2
Laundry Location
First Floor
Appliances
Gas CooktopWall OvenRefrigeratorDishwasherWasherDryer
Basement
FullFull With Walk-Out
Interior Features
Central VacuumOpen Floor Plan

Exterior & Lot

Lot Size
3.50 acres
Zoning
R-2
Garage / Parking
1 garage spaceDetached Garage
Waterfront
Direct waterfront
Waterfront Details
PondViewAccess
Water Source
Private Well
Sewer
Septic
Flood Zone
Yes
Pool
GuniteIn Ground Pool
Construction
Clapboard
Color
Tan
Roof
Shake
Foundation
ConcreteStone
Exterior Features
BalconyTennis CourtDeckGarden AreaHot TubStone WallFrench Doors
Lot Description
Professionally LandscapedRollingWater View

Listing & Financials

Property Taxes
$18,831 / Annually
Days on Market
63
MLS #
24183296
MLS Status
Active

Similar Properties

Homes with a close match in area, property type, and price.

Listed By

Jennifer Gurnell

(860) 227-1212

William Raveis Real Estate

(203) 453-0391

This information is believed to be accurate, but without warranty.

The IDX display contains information sourced from SmartMLS, Inc. as of 8/14/2026. This information is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing or leasing. Data is deemed reliable but is not guaranteed accurate by the MLS, the listing broker, the listing agent, or Matt Caiola. Buyers and tenants should independently verify all information that matters to their decision.

Map locations may be approximate. Any offer of compensation, if applicable, is made only to participants of the MLS where the listing is filed. ©2026 Smart MLS, Inc. All rights reserved.

Data last updated on 8/14/2026 at 5:02 AM UTC.