$1,675,000
SOLD MAR 26, 2026

17 Sunnyside Ave Darien, CT 06820

3 Beds
2.5 Baths
2,234 Sq Ft
8,276 Sq Ft Lot

Sale Details

Date Sold: March 26, 2026

$750 Per Sq Ft

11% Above List Price

14 Days on Market

Highlights

  • Beach Access
  • Open Floorplan
  • Wolf Appliances
  • Holmes Elementary School Rated A
  • Colonial Architecture
  • 4-minute walk to Woodland Park Nature Preserve

About This Home

As of March 2026

Sun-drenched and full of character, this beautifully updated English Colonial is set on a quiet, picture-perfect street in one of Noroton Heights' most desirable neighborhoods, a quick walk to the elementary school, a mile to middle school, steps to Woodland Park, and moments to shops, restaurants, and the NYC train. Blending timeless 1920s charm with thoughtful modern upgrades, the home welcomes you with an inviting foyer that opens to a gracious open plan living room with fireplace and dining room, perfect for entertaining, plus a private study that also makes a great playroom. The updated chef's kitchen includes a Wolf range and quartz countertops, and flows to an expansive entertaining patio and fully fenced backyard, complete with an irrigation system. Upstairs are three spacious bedrooms and an additional office. The finished daylight/walkout lower level offers a versatile playroom, along with a recently upgraded mudroom and laundry. New central air conditioning added in 2025. New washer and dryer in 2023. Improvements in recent years also include 2 fully renovated bathrooms, refinished hardwood floors, fresh interior paint, updated lighting, Nest thermostat, and an electric pet fence. Current owners have also added extensive plantings to the landscaping in the home's pretty and private property. City water/sewer/gas. Ask about garage and primary bath plans. Enjoy an easy and engaging lifestyle full of charm, style and easy access to all Noroton Heights has to offer!

Last Agent to Sell the Property

Cyd Hamer

William Pitt Sotheby's Int'l Brokerage Phone: (917) 744-5089 License #RES.0791190 Listed on: 01/26/2026

William Pitt Sotheby's Int'l

Last Buyer's Agent

Nancy Peter

Houlihan Lawrence License #RES.0761387

Houlihan Lawrence

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $13,756

Year Built

  • Built in 1927

Lot Details

  • 8,276 Sq Ft Lot
  • Stone Wall
  • Property is zoned R13

Parking

  • 2 Car Garage

Home Design

  • Colonial Architecture
  • Concrete Foundation
  • Frame Construction
  • Asphalt Shingled Roof
  • Stucco Exterior

Interior Spaces

  • Open Floorplan
  • 1 Fireplace
  • Mud Room
  • Finished Basement
  • Basement Fills Entire Space Under The House
  • Pull Down Stairs to Attic
  • Smart Thermostat

Kitchen

  • Oven or Range
  • Range Hood
  • Microwave
  • Dishwasher
  • Wolf Appliances
  • Disposal

Bedrooms and Bathrooms

  • 3 Bedrooms

Laundry

  • Laundry on lower level
  • Dryer
  • Washer

Outdoor Features

  • Beach Access
  • Patio
  • Shed
  • Rain Gutters
  • Porch

Schools

  • Holmes Elementary School
  • Middlesex School
  • Darien High School

Utilities

  • Central Air
  • Hot Water Heating System
  • Heating System Uses Natural Gas
  • Hot Water Circulator
  • Cable TV Available

Listing and Financial Details

  • Exclusions: See exclusions document.
  • Assessor Parcel Number 105756

Home Details

Home Type

Single Family

Est. Annual Taxes

$13,756

Year Built

Built in 1927

Lot Details

8,276 Sq Ft Lot

Listing Details

  • Neighborhood: Noroton Heights
  • Property Type: Single Family For Sale
  • Style: Colonial
  • Sq Ft Est Heated Above Grade: 1650
  • Sq Ft Est Heated Below Grade: 584
  • Total Sq Ft: 2234
  • Year Built: 1927
  • New Construction: No/Resale
  • Nearby Amenities: Library, Park, Public Rec Facilities
  • Exclusions: See exclusions document.
  • Direct Waterfront: No
  • Home Warranty Offered: No
  • Directions: Middlesex Road to Sunnyside Avenue
  • Financing Used: Cash
  • Street Type: Avenue
  • Office Attribution Contact: (203) 227-1246
  • Reserve Prospect: No
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Total Bedrooms: 3
  • Total Bathrooms: 3
  • Full Bathrooms: 2
  • Half Bathrooms: 1
  • Fireplaces: 1
  • Attic Description: Pull-Down Stairs
  • Basement Description: Full, Fully Finished
  • Interior Amenities: Cable - Pre-wired, Open Floor Plan
  • Appliances: Oven/Range, Microwave, Range Hood, Refrigerator, Dishwasher, Disposal, Washer, Dryer
  • Additional Rooms: Mud Room
  • Laundry Room Info: Lower Level
  • Attic: Yes
  • Home Automation: Thermostat(s)

Exterior Features

  • Exterior Features: Shed, Porch, Gutters, Stone Wall, Patio
  • Exterior Siding: Stucco
  • Foundation Type: Concrete
  • Roof Information: Asphalt Shingle
  • Waterfront Description: Beach Rights
  • Swimming Pool: No
  • Construction Description: Frame

Garage/Parking

  • Garages Number: 2
  • Garage And Parking: Carport

Utilities

  • Cooling System: Central Air
  • Heat Type: Hot Water
  • Heat Fuel Type: Natural Gas
  • Hot Water Description: Domestic
  • Water Source: Public Water Connected
  • Sewer: Public Sewer Connected

Lot Info

  • Acres: 0.19
  • Lot Description: Level Lot Professionally Landscaped
  • Flood Zone: No
  • Zoning: R13
  • Parcel #: 105756

Tax Info

  • Tax Year: July 2025-June 2026
  • Property Tax: 13756

MLS Schools

  • Elementary School: Holmes
  • Middle Jr High School: Middlesex
  • High School: Darien

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Jan 31, 2018
Closed on
May 18, 2018
Sold by
Ott Robert and Ott Cara
Bought by
Westling Per and Bohling Ashlyn
Seller's Agent
Deborah Hidy
Houlihan Lawrence
Buyer's Agent
Jillian Klaff
Coldwell Banker Realty
List Price
$1,025,000
Sold Price
$997,000
Premium/Discount to List
-$28,000
-2.73%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
5.36%
Original Mortgage
$797,600
Outstanding Balance
$680,824
Interest Rate
4.4%
Mortgage Type
Purchase Money Mortgage
Estimated Equity
$822,674

Purchase Details

Listed on
Jul 29, 2015
Closed on
Sep 21, 2015
Sold by
Fay Sean P and Fay Amy N
Bought by
Ott Robert and Ott Cara
Seller's Agent
Eileen Hanford
Brown Harris Stevens
Buyer's Agent
Deborah Hidy
Houlihan Lawrence
List Price
$939,000
Sold Price
$945,000
Premium/Discount to List
$6,000
0.64%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
2.04%

Purchase Details

Listed on
Mar 18, 2015
Closed on
May 29, 2015
Sold by
Biolsi Daniel W and Biolsi Karen A
Bought by
Fay Sean P and Fay Amy N
Seller's Agent
Deborah Hidy
Houlihan Lawrence
Buyer's Agent
Kim Swift
Houlihan Lawrence
List Price
$939,000
Sold Price
$939,000

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
2.01%

Purchase Details

Closed on
Apr 17, 2006
Sold by
Langeveld Kerrie and Langeveld Nicholas H
Bought by
Blolsi Daniel W and Blolsi Karen A

Purchase Details

Closed on
Nov 12, 2003
Sold by
Murphy Bryan P and Murphy Sara
Bought by
Langeveld Nicholas H and Langeveld Kerrie

Purchase Details

Closed on
Apr 16, 1999
Sold by
Wellings James F and Wellings Renate
Bought by
Murphy Bryan P and Murphy Sara

Purchase Details

Closed on
May 30, 1989
Sold by
Mcgregor Paul
Bought by
Wellings James
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

Not Available

Collateral Analytics does not have data for the current month. Please view the chart for historical values.

ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

Not Available

ICE Mortgage Technology does not have data for the current month. Please view the chart for historical values.

First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

Not Available

First American does not have data for the current month. Please view the chart for historical values.

Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

Not Available

Quantarium does not have data for the current month. Please view the chart for historical values.

Average Value
Not Available
List Price
Sold Price
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area

Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Purchase History

Date Type Sale Price Title Company
Warranty Deed $997,000 --
Warranty Deed $945,000 --
Warranty Deed $939,000 --
Warranty Deed $850,000 --
Warranty Deed $761,600 --
Warranty Deed $450,000 --
Deed $370,000 --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Open $797,600 Purchase Money Mortgage
Closed $99,700 Credit Line Revolving
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft Prior Sale
03/26/2026 03/26/26 Sold $1,675,000 +10.9% $750 / Sq Ft
02/12/2026 02/12/26 Pending -- -- --
01/28/2026 01/28/26 For Sale $1,510,000 +18.4% $676 / Sq Ft
04/23/2021 04/23/21 Sold $1,275,000 +8.5% $717 / Sq Ft View Prior Sale
02/18/2021 02/18/21 For Sale $1,175,000 +17.9% $661 / Sq Ft
05/18/2018 05/18/18 Sold $997,000 -2.7% $523 / Sq Ft View Prior Sale
03/09/2018 03/09/18 Pending -- -- --
01/31/2018 01/31/18 For Sale $1,025,000 +8.5% $538 / Sq Ft
09/22/2015 09/22/15 Sold $945,000 +0.6% $628 / Sq Ft View Prior Sale
08/23/2015 08/23/15 Pending -- -- --
07/29/2015 07/29/15 For Sale $939,000 0.0% $624 / Sq Ft
05/29/2015 05/29/15 Sold $939,000 0.0% $624 / Sq Ft View Prior Sale
04/29/2015 04/29/15 Pending -- -- --
03/18/2015 03/18/15 For Sale $939,000 -- $624 / Sq Ft
Source: SmartMLS

Tax History

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 $13,756 $888,650 $743,190 $145,460
2024 $13,054 $888,650 $743,190 $145,460
2023 $11,041 $626,990 $495,460 $131,530
2022 $10,803 $626,990 $495,460 $131,530
2021 $10,259 $626,990 $495,460 $131,530
2020 $10,239 $626,990 $495,460 $131,530
2019 $10,327 $626,990 $495,460 $131,530
2018 $9,909 $632,100 $453,040 $179,060
2017 $10,215 $632,100 $453,040 $179,060
2016 $9,968 $632,100 $453,040 $179,060
2015 $9,703 $632,100 $453,040 $179,060
2014 $9,488 $632,100 $453,040 $179,060
Source: Public Records

Agents Affiliated with this Home

  • Section Image
  • Section Image
  • Section Image
  • Section Image
  • Section Image
  • Section Image
See All Agents

Map

Source: SmartMLS

MLS Number: 24151138

SmartMLS

APN: DARI-000027-000000-000086

Your Personal Tour Guide

Ask me questions while you tour the home.