18 Birch Mill Rd Killingworth, CT 06419
Killingworth AreaEstimated payment $13,873/month
Highlights
- Tennis Courts
- In Ground Pool
- Waterfront
- Haddam-Killingworth High School Rated 9+
- Sub-Zero Refrigerator
- Open Floorplan
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.
Listing Agent
William Raveis Real Estate Brokerage Phone: (860) 227-1212 License #RES.0002284 Listed on: 06/11/2026
Open House Schedule
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Saturday, September 19, 202612:00 to 1:30 pm9/19/2026 12:00:00 PM +00:009/19/2026 1:30:00 PM +00:00**FIRST OPEN HOUSE!** Don't miss your first opportunity to experience The Well Maiden Estate, a one-of-a-kind 3.5-acre waterfront retreat with waterfalls, streams and breathtaking grounds. Discover dramatic living spaces, fieldstone fireplaces, a chef's kitchen, heated saltwater gunite pool and spa, clay tennis court, patios, trails and remarkable privacy. Homes like this rarely come to market, and photos cannot capture the magic. Come see it before someone else does.Add to Calendar
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $20,447
Year Built
- Built in 1988
Lot Details
- 3.5 Acre Lot
- Waterfront
- Stone Wall
- Garden
- Property is zoned R-2
Home Design
- Colonial Architecture
- Tudor Architecture
- Concrete Foundation
- Stone Foundation
- Frame Construction
- Shake Roof
- Clap Board Siding
Interior Spaces
- 3,700 Sq Ft Home
- Open Floorplan
- Central Vacuum
- Vaulted Ceiling
- 2 Fireplaces
- French Doors
Kitchen
- Built-In Double Oven
- Gas Cooktop
- Sub-Zero Refrigerator
- Dishwasher
- Farmhouse Sink
Bedrooms and Bathrooms
- 4 Bedrooms
- Freestanding Bathtub
- Soaking Tub
Laundry
- Dryer
- Washer
Basement
- Walk-Out Basement
- Basement Fills Entire Space Under The House
Parking
- 1 Car Garage
- Parking Deck
Pool
- In Ground Pool
- Spa
- Gunite Pool
Outdoor Features
- Tennis Courts
- Balcony
- Deck
Location
- Flood Zone Lot
- Property is near shops
Schools
- Killingworth Elementary School
- Haddam-Killingworth High School
Utilities
- Central Air
- Heating System Uses Oil
- 60 Gallon+ Oil Water Heater
- Well
- Fuel Tank Located in Basement
Listing and Financial Details
- Assessor Parcel Number 996278
Map
Home Values in the Area
Average Home Value in this Area
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $18,831 | $718,200 | $97,020 | $621,180 |
| 2024 | $17,395 | $718,200 | $97,020 | $621,180 |
| 2023 | $16,856 | $718,200 | $97,020 | $621,180 |
| 2022 | $16,677 | $718,200 | $97,020 | $621,180 |
| 2021 | $11,027 | $412,680 | $105,950 | $306,730 |
| 2020 | $11,027 | $412,680 | $105,950 | $306,730 |
| 2019 | $11,336 | $412,680 | $105,950 | $306,730 |
| 2018 | $11,336 | $412,680 | $105,950 | $306,730 |
| 2017 | $11,336 | $412,680 | $105,950 | $306,730 |
| 2016 | $10,768 | $415,920 | $156,180 | $259,740 |
| 2015 | $10,494 | $415,920 | $156,180 | $259,740 |
| 2014 | $10,203 | $415,920 | $156,180 | $259,740 |
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 08/14/2026 08/14/26 | Price Changed | $2,195,000 | -6.6% | $593 / Sq Ft | |
| 06/14/2026 06/14/26 | For Sale | $2,350,000 | +80.8% | $635 / Sq Ft | |
| 10/25/2021 10/25/21 | Sold | $1,300,000 | -7.0% | $362 / Sq Ft | View Prior Sale |
| 09/03/2021 09/03/21 | Pending | -- | -- | -- | |
| 06/24/2021 06/24/21 | For Sale | $1,398,000 | +16.5% | $389 / Sq Ft | |
| 05/11/2012 05/11/12 | Sold | $1,200,000 | -4.0% | $293 / Sq Ft | View Prior Sale |
| 03/08/2012 03/08/12 | Pending | -- | -- | -- | |
| 02/13/2012 02/13/12 | For Sale | $1,250,000 | -- | $305 / Sq Ft |
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Warranty Deed | $1,300,000 | None Available | |
| Warranty Deed | $1,200,000 | -- | |
| Warranty Deed | $605,000 | -- |
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $1,040,000 | Purchase Money Mortgage | |
| Previous Owner | $1,080,000 | Adjustable Rate Mortgage/ARM |
Source: SmartMLS
MLS Number: 24183296
APN: KILL-000015-000000-000042
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