3121 Alan Shepard St, Herndon, VA 20171
OFF MARKET

$778,200

Trulia Estimate
  • 4 Beds
  • 4 Baths
  • 2,604 sqft

3121 Alan Shepard St, Herndon, VA 20171

Sully Square
Est. Refi. Payment $4,710/mo*
Refinance Your Home

Home Value

Trulia Estimate
$778K
Since last month
Decreased$2K (-0.2%)
Since last year
Increased$12K (+1.6%)
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$779K
August 2026$778K
July 2026$780K
June 2026$796K
May 2026$787K
April 2026$794K
March 2026$789K
February 2026$786K
January 2026$786K
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

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
3179 John Glenn St, Herndon, VA
0.12
Townhouse
$805,000
08/31/26
4
3.5
2,635
3122 Alan Shepard St, Herndon, VA
0.04
Townhouse
$840,000
03/31/26
4
4
2,268
3055 Alan Shepard St, Herndon, VA
0.19
Townhouse
$795,000
12/03/25
4
4
2,692
13650 Air And Space Museum Pkwy, Herndon, VA
0.05
Townhouse
$801,000
02/10/26
3
4
2,874
3157 John Glenn St, Herndon, VA
0.13
Townhouse
$765,000
10/16/25
5
4.5
2,090
3092 Alan Shepard St, Herndon, VA
0.21
Townhouse
$825,000
10/28/25
4
4
2,662
3072 Alan Shepard St, Herndon, VA
0.16
Townhouse
$832,000
06/30/26
4
4
3,190
13598 Air And Space Museum Pkwy, Herndon, VA
0.20
Townhouse
$810,000
08/21/26
4
4
2,845
3023 McMaster Ct, Herndon, VA
0.54
Townhouse
$470,000
04/30/26
3
3
1,260
13584 Cedar Run Ln, Herndon, VA
0.74
Townhouse
$750,000
10/06/25
4
3.5
2,540

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
13757 Air And Space Museum Pkwy, Herndon, VA 20171
0.07
$577,100
3
2.5
2,516
Off Market
13761 Air And Space Museum Pkwy, Herndon, VA 20171
0.07
$597,200
3
2.5
2,633
Off Market
3122 Alan Shepard St, Herndon, VA 20171
0.04
$840,000
4
4
2,268
Recently Sold
13767 Air And Space Museum Pkwy, Herndon, VA 20171
0.09
$623,400
3
2.5
2,516
Off Market
13719 Air And Space Museum Pkwy, Herndon, VA 20171
0.05
$584,300
3
2.5
2,516
Off Market
13650 Air And Space Museum Pkwy, Herndon, VA 20171
0.05
$801,000
3
4
2,874
Recently Sold
13707 Air And Space Museum Pkwy #12J, Herndon, VA 20171
0.06
$532,600
3
2.5
1,522
Off Market
13731 Endeavour Dr, Herndon, VA 20171
0.09
$550,000
3
2.5
1,522
Off Market
13721 Endeavour Dr #3-K, Herndon, VA 20171
0.09
$592,500
3
2.5
2,516
Off Market
13740 Endeavour Dr #206, Herndon, VA 20171
0.08
$446,900
2
2
1,237
Off Market
13740 Endeavour Dr #402, Herndon, VA 20171
0.08
$462,700
2
2
1,333
Off Market
13748 Atlantis St, Herndon, VA 20171
0.12
$599,900
3
2.5
2,516
Recently Sold

Local Information

  • Map ViewExplore the area around 3121 Alan Shepard St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Townhouse
Built in 2019
2,604 sqft
$299/sqft

About this House

Entry level includes a spacious bedroom and full bathroom. Main level is open concept with large kitchen island functioning as a command center for the home. Upstairs the owner's suite features a huge closet, dual vanity bathroom and a large shower with a seat. Fourth level loft with powder room and rooftop terrace included!
3121 Alan Shepard St, Herndon, VA 20171 is a 4 bedroom, 2 bathroom, 2,604 sqft townhouse in Sully Square, built in 2019. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $778,200, with a rent estimate of $3,568/month.

Home Details for 3121 Alan Shepard St

Interior Features

Levels, Entrance, & Accessibility
Stories: 4
Interior Details
Types of Rooms: Dining Room, Family Room
Heating & Cooling
Air Conditioning

Exterior Features

Exterior Home Features
Roof: CompositionExterior: Wood, Brick
Parking & Garage
Parking Spaces: 2

Property Information

Year Built
Year Built: 2019
Property Type / Style
Property Type: TownhouseArchitecture: townhouse

Lot Information

Lot Area: 1195 sqft

Price and Tax history

DateEventPrice
Aug 27, 2019
Source: Agent Provided
ListingRemoved
$700,782
Aug 24, 2019
Source: Agent Provided
Listed For Sale
$700,782

Market trends in Herndon

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$735K
$1.97KMoM
Sale-to-List Price
100.1%
Price per sq ft
$333
$5MoM
Available listings
187
23MoM

Around this home

Neighborhood Overview

Sully Square
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Sully Square

At least 1 Trulia users voted on each feature.

  • 100 % Say it's quiet

  • 100 % Say it's walkable to grocery stores

  • 100 % Say streets are well-lit

  • 50 % Say neighbors are friendly

Sourced by Trulia users. Learn more about our methodology.

LGBTQ Local Legal Protections

Frequently asked questions about 3121 Alan Shepard St

  • What is 3121 Alan Shepard St estimated to be worth?
    Trulia's estimated value for 3121 Alan Shepard St in Herndon, VA is $778,200.
  • Is Herndon a buyer's or seller's market?
    Herndon is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Herndon?
    The median sale price in Herndon is $735K. That is up $1.97K from the prior month.
  • What are the closest schools to 3121 Alan Shepard St?
    The closest schools to 3121 Alan Shepard St in Herndon, VA are Carson Middle School (rated 9/10), Floris Elementary School (Pre-K, rated 9/10), Westfield High School (rated 5/10).
  • Does 3121 Alan Shepard St have parking?
    Yes, 3121 Alan Shepard St in Herndon, VA has on-site parking.

Explore by feature - Pet Friendly

84 pet-friendly rentals in Herndon, VA

Explore by feature - Garage

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Explore by feature - Air Conditioning

148 rentals with air conditioning in Herndon, VA

Explore by feature - Pool

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Explore by feature - Washer/dryer

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Explore by feature - Outdoor Space

25 rentals with an outdoor space in Herndon, VA

Apartments for Rent

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Off Market Homes Near 3121 Alan Shepard St

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