For sale

$449,000

11 William Street, Ansonia, CT 06401

3beds

2,624sqft

$3,204/mo

Get pre-qualified

Single Family Residence

Built in 1883

0.3 Acres Lot

$-- Zestimate^®

$171/sqft

$-- HOA

What's special

Office roomFamily roomCathedral ceilingPlenty of off-street parkingSpacious bedroomsLevel private yard

Spectacular! One of a kind reminiscent of NYC/ Boston Brownstone townhouse Style home built in the 1800's. Tons of charm. This unique end unit home offers 5 levels of living space. Impressive woodwork on the stair way. There is a full kitchen with plenty of built ins as well as a Butler's Kitchen. 2 fireplaces. Enclosed outdoor patio/sitting room. Gas heat. Detached carriage/barn. Plenty of off-street parking with level private yard. Spacious bedrooms, office room, den, family room. Cathedral ceiling. Located on a Cul de sac. Seller to find suitable housing.

21 days
493
39

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 3
Bathrooms: 2
Full bathrooms: 1
1/2 bathrooms: 1

Rooms

Room types: Bonus Room

Primary bedroom

Features: Ceiling Fan(s), Fireplace, Laminate Floor
Level: Upper
Area: 306 Square Feet
Dimensions: 17 x 18

Bedroom

Features: Ceiling Fan(s), Laminate Floor
Level: Upper
Area: 182 Square Feet
Dimensions: 13 x 14

Bedroom

Features: Ceiling Fan(s), Laminate Floor
Level: Upper
Area: 150 Square Feet
Dimensions: 10 x 15

Dining room

Features: High Ceilings, Hardwood Floor
Level: Main
Area: 195 Square Feet
Dimensions: 13 x 15

Family room

Features: Tile Floor
Level: Lower
Area: 204 Square Feet
Dimensions: 12 x 17

Kitchen

Features: Built-in Features, Pantry, Patio/Terrace, Tile Floor
Level: Lower
Area: 165 Square Feet
Dimensions: 11 x 15

Living room

Features: High Ceilings, Fireplace, Hardwood Floor
Level: Main
Area: 285 Square Feet
Dimensions: 15 x 19

Office

Features: Hardwood Floor
Level: Upper
Area: 56 Square Feet
Dimensions: 7 x 8

Other

Features: Patio/Terrace
Level: Lower

Other

Features: Breakfast Nook, Wet Bar
Level: Main

Rec play room

Features: Cathedral Ceiling(s), Vaulted Ceiling(s), Half Bath, Hardwood Floor
Level: Upper
Area: 391 Square Feet
Dimensions: 23 x 17

Heating

Hot Water, Natural Gas

Cooling

Window Unit(s)

Appliances

Included: Gas Range, Microwave, Range Hood, Refrigerator, Dishwasher, Washer, Dryer, Wine Cooler, Electric Water Heater, Water Heater
Laundry: Lower Level

Features

Basement: Full,Partially Finished
Attic: Finished,Walk-up
Number of fireplaces: 2

Interior area

Total structure area: 2,624
Total interior livable area: 2,624 sqft
Finished area above ground: 2,624

Property

Parking

Total spaces: 4
Parking features: Off Street

Features

Patio & porch: Patio
Exterior features: Sidewalk
Fencing: Partial

Lot

Size: 0.3 Acres
Features: Level, Cul-De-Sac

Details

Parcel number: 1047626
Zoning: B

Construction

Type & style

Home type: SingleFamily
Architectural style: Other
Property subtype: Single Family Residence

Materials

Brick
Foundation: Block
Roof: Asphalt

Condition

New construction: No
Year built: 1883

Utilities & green energy

Sewer: Public Sewer
Water: Public
Utilities for property: Cable Available

Community & HOA

Community

Features: Health Club, Library, Park, Playground, Shopping/Mall

HOA

Has HOA: No

Location

Region: Ansonia

Financial & listing details

Price per square foot: $171/sqft
Tax assessed value: $242,410
Annual tax amount: $7,141
Date on market: 9/16/2026

Estimated market value

Not available

Estimated sales range

Not available

Price history

Date	Event	Price
9/16/2026	Listed for sale	$449,000-3.4%$171/sqft
Source: Smart MLS #24205552 Report a problem
5/2/2025	Listing removed	$465,000$177/sqft
Source: Smart MLS #24075902 Report a problem
3/20/2025	Listed for sale	$465,000+55.1%$177/sqft
Source: Smart MLS #24075902 Report a problem
3/17/2020	Listing removed	$299,900$114/sqft
Source: Frank A Hoinsky Real Estate Inc. #170243546 Report a problem
10/10/2019	Listed for sale	$299,900$114/sqft
Source: Frank A Hoinsky Real Estate Inc. #170243546 Report a problem
9/8/2019	Listing removed	$299,900$114/sqft
Source: Frank A Hoinsky Real Estate Inc. #170192340 Report a problem
5/7/2019	Listed for sale	$299,900+154.2%$114/sqft
Source: Frank A Hoinsky Real Estate Inc. #170192340 Report a problem
9/12/2003	Sold	$118,000$45/sqft
Source: Agent Provided Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$6,921 +7.8%	$242,410
2024	$6,421 +0.9%	$242,410
2023	$6,361 +5.5%	$242,410 +52%
2022	$6,029	$159,500
2021	$6,029	$159,500
2020	$6,029	$159,500
2019	$6,029 +1.3%	$159,500
2018	$5,953 +5.2%	$159,500 +5.2%
2017	$5,658	$151,600
2016	$5,658 -0.5%	$151,600
2015	$5,688 -2.8%	$151,600
2014	$5,853 -1.9%	$151,600
2013	$5,964 +34.4%	$151,600 -5.5%
2012	$4,438 +5.3%	$160,500
2011	$4,213 +1.9%	$160,500
2010	$4,133 +2%	$160,500
2009	$4,053	$160,500
2008	$4,053 +43.2%	$160,500 +83.2%
2007	$2,831 +0.1%	$87,600
2006	$2,829 +4.7%	$87,600
2005	$2,703 +107.1%	$87,600 +97.3%
2003	$1,305 -7.3%	$44,400 +2.1%
2001	$1,408	$43,470