21 Cornerstone Dr, Derby, CT 06418
Property image
Property image
OFF MARKET

$310,100

Trulia Estimate
  • 2 Beds
  • 2 Baths
  • 1,102 sqft

21 Cornerstone Dr, Derby, CT 06418

Est. Refi. Payment $2,223/mo*
Refinance Your Home
Currently Off Market - Sold Oct 16, 2009 for $189,000

Home Value

Trulia Estimate
$310K
Since last month
Decreased$300 (-0.1%)
Since last year
Increased$10K (+3.3%)
Since last sale
Increased$122K (+64.4%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +51% in the last 10 years
MonthEstimated value
2026
August 2026$311K
August 2026$310K
July 2026$311K
June 2026$326K
May 2026$322K
April 2026$307K
March 2026$314K
February 2026$313K
January 2026$318K
2025
2024
2023
2020

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
26 Summit Commons #26, Derby, CT
0.02
Condo
$325,000
12/19/25
2
1.5
1,102
88 Summit Cmns, Derby, CT
0.05
Condo
$310,000
11/19/25
2
2
1,252
63 Summit Cmns, Derby, CT
0.11
Condo
$310,000
06/15/26
2
2
1,102
63 Summit Commons #63, Derby, CT
0.22
Condo
$310,000
06/12/26
2
1.5
1,102
88 Summit Commons #88, Derby, CT
0.22
Condo
$310,000
11/14/25
2
1.5
1,252
34 Cornerstone Drive #AKA 11 Summit Commons, Derby, CT
0.22
Condo
$312,000
07/13/26
2
1.5
1,252
22 Cornerstone Drive #22 Summit Commons, Derby, CT
0.22
Condo
$320,000
08/28/26
2
1.5
1,252
34 Summit Cmns, Derby, CT
0.19
Condo
$312,000
07/14/26
2
2
1,102
7 Howard Avenue APT 3, Ansonia, CT
0.52
Condo
$230,000
01/10/26
2
2.5
1,656
273 Derby Avenue #503, Derby, CT
0.88
Condo
$210,100
05/15/26
2
1.5
1,022

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
17 Cornerstone Drive #17, Derby, CT 06418
0.02
$306,700
2
1.5
1,102
Off Market
34 Cornerstone Dr (aka Summit #34, Derby, CT 06418
0.02
$356,700
2
3.5
1,102
Off Market
21 Cornerstone Drive #21, Derby, CT 06418
0.01
$303,500
2
1.5
1,102
Off Market
14 Cornerstone Drive #14, Derby, CT 06418
0.01
$298,900
2
1.5
1,102
Off Market
17 Cornerstone Dr.(summit St), Derby, CT 06418
0.01
$312,200
2
1.5
1,102
Off Market
31 Cornerstone Drive #31, Derby, CT 06418
0.03
$309,500
2
1.5
1,252
Off Market
26 Summit Commons #26, Derby, CT 06418
0.02
$325,000
2
1.5
1,102
Recently Sold
94 Clearview Court #94, Derby, CT 06418
0.02
$341,900
2
1.5
1,402
Off Market
74 Misty Vale Lane #74, Derby, CT 06418
0.05
$313,000
2
1.5
1,252
Off Market
86 Misty Vale Lane #86, Derby, CT 06418
0.05
$298,900
2
1.5
1,102
Off Market
87 Summit Commons #87, Derby, CT 06418
0.05
$325,600
2
1.5
1,102
Off Market
97B Summit Street, Derby, CT 06418
0.05
$491,400
3
2.5
2,100
Off Market

Local Information

  • Map ViewExplore the area around 21 Cornerstone Dr.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Condo
Year Built
1990
Living Area
1,102 sqft
Price/Sqft
$281

About this House

SPACIOUS 2BR TOWNHOUSE IN SUMMIT COMMONS. THIS END UNIT INCLUDES A LARGE LIVING ROOM AND DINING ROOM, FINISHED LOWER LEVEL IS GREAT FOR A 3RD BEDROOM OR OFFICE, 1 CAR GARAGE, CENTRAL AIR, AND SLIDERS THAT LEAD TO A PRIVATE PATIO. LOW COMMON CHARGES!
21 Cornerstone Dr, Derby, CT 06418 is a 2 bedroom, 2 bathroom, 1,102 sqft condo built in 1990. It last sold for $189,000 on Oct 16, 2009. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $310,100, with a rent estimate of $2,081/month.

Home Details for 21 Cornerstone Dr

Property Information

Year Built
Year Built: 1990
Property Type / Style
Property Type: Condo

Price and Tax history

DateEventPrice
Oct 16, 2009
Source: Smart MLS #98432642
Sold
$189,000
Aug 16, 2009
Source: Agent Provided
Listed For Sale
$199,900
Nov 1, 2006
Source: Smart MLS #98296713
Sold
$220,000

Market trends in Derby

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
19
2MoM

Around this home

What Locals Say about Derby

At least 188 Trulia users voted on each feature.

  • 82 % Say car is needed

  • 77 % Say it's dog friendly

  • 67 % Say there are sidewalks

  • 67 % Say parking is easy

  • 66 % Say there's holiday spirit

  • 62 % Say streets are well-lit

  • 57 % Say yards are well-kept

  • 56 % Say it's walkable to restaurants

  • 56 % Say kids play outside

  • 54 % Say people would walk alone at night

  • 50 % Say it's quiet

  • 48 % Say it's walkable to grocery stores

  • 48 % Say neighbors are friendly

  • 47 % Say they plan to stay for at least 5 years

  • 38 % Say there's wildlife

  • 26 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Krystal
    "School district is crap. Kids run the streets at all hours of the night and cars have gotten stolen not to mention parts off of cars have disappeared and cops have done nothing about it."
    1
    Flag
  • Tashima
    "There are no sidewalks which makes it difficult to walk your dog. You have to walk on someone’s property or in the street. Walking in the street is very dangerous. "
    1
    Flag
  • Edwin Portillo
    "Keep dogs under their control and not let them run loose in the streets especially when they’re pit bulls "
    0
    Flag
  • Sheema
    "It is a safe and boring town. Close to grocery stores. No major attractions. Neighboring towns are nice. "
    0
    Flag
  • Thabushfamily
    "lived here 3 years typically quiet good schools and close to transit and shopping centers. river walk trails and parks!!"
    0
    Flag
  • Belinda.rone
    "The area is nice and quiet. You really need a car, but public transportation is accessible. The shopping area is good, with a variety of stores to choose from."
    0
    Flag
  • Francis M.
    "Very quiet & safe area to live in. Will sure miss it when I leave next month but highly recommend families to raise a family in this town "
    0
    Flag
  • Jeremey.lombard
    "I’ve lived in this city all my life. It’s small, and everything you need is no more than a 20 minute drive. Quant and cute!"
    0
    Flag
  • Maritza H.
    "Lived here one year. It’s quiet and secluded but it’s ok. Good for my granddaughter to grow up in. Thank you"
    0
    Flag
  • Cyntia A.
    "it's a hassle for parking when its December, january, February and march. quiet neighborhood. great to have pets here."
    1
    Flag
  • Lubna A.
    "It’s quite and there’s nice people here it feels safe. There’s really nothing to do out here which sucks but if you like quiet and peace this the neighborhood to be at "
    0
    Flag
  • Soquendo777
    "ive lived here for 14 years love tgis little town just wish there was more to due to keep me in town as far as parks playground i have to take them out of town so means spending money outside of derby instead of contributing to my town ."
    0
    Flag
  • Oya2019
    "Yes it’s ok people don’t know how to pick up dog poop up kids stepping in it they don’t pay attention otherwise good"
    0
    Flag
  • Jeremey.lombard
    "I’ve lived here all my life, it’s quiet and peaceful, beautiful scenery, and it’s easy to get anywhere. Great little city. "
    0
    Flag
  • Thabushfamily
    "I live walking distance from the train station. Great parks and trails. Close to shopping and the highways. "
    0
    Flag
  • Mikhail M.
    "it's a good starter neighborhood but not to stay long term. it has great potential and one day it will a bustling city. "
    0
    Flag
  • Mikhail M.
    "my neighbor is great, schools movies hospitals are only minutes away. shopping is easy with target and big Y close by as well."
    0
    Flag
  • Richard R. J.
    "Great neighborhood. I’ve been here for two years now. Love the lake view and being around a good amount of restaurants and hiking trails. "
    0
    Flag
  • Barbara
    "Too many drugs and violence,and police don’t care, taxes are too high, town has too much Violence and Crime rate is very high "
    1
    Flag
  • Francis
    "Heavy drug area rodents pest problems area is very low income run garbage everywhere houses sidewalks. House not maintained unsafe to walk at night"
    7
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 21 Cornerstone Dr

  • What is 21 Cornerstone Dr estimated to be worth?
    Trulia's estimated value for 21 Cornerstone Dr in Derby, CT is $310,100.
  • What is the price history for 21 Cornerstone Dr?
    21 Cornerstone Dr in Derby, CT last sold for $189,000 in October 2009.
  • Is Derby a buyer's or seller's market?
    Derby is currently a seller's market, based on recent for-sale activity.
  • What do residents say about Derby?
    Residents describe Derby, CT as dog-friendly, pedestrian-friendly, and easy to park in. See recently sold homes in Derby, CT.

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