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Off Market

4321 Neptune Dr

Mount Vernon VA 22309

4
3
2
2475 sq. ft.
22750 sq. ft.
Single-Family
Last sold for $880,000
Rachel KnappRachel Knapp, last sold this property on 20 August 2025 after 61 days on market.

Overview

It’s like Walking on Sunshine... and Into Your New Home! Yacht Haven invites you to experience the charm of its coveted Mount Vernon enclave—tucked into a quiet peninsula along the Potomac River, just 40 minutes south of Washington, D.C, with NO HOA. This sunlit home stands out with its unique four-level split layout, offering comfort and versatility. Rich wood floors, timeless ceramic tile, and soft neutral carpeting are in just the right places for both elegance and everyday ease. Classic bay windows in the living and dining rooms fill the home with warm, natural light, while the open-concept kitchen fosters easy entertaining and daily connection. A tiled bonus room off the dining area expands upon flexible space for a home office, playroom, or gym, and opens to a newer rear deck. Upstairs, you’ll find three bedrooms, including a bright primary suite, and two bathrooms. On the lower level, an expansive family room flows into a private bedroom with its own en suite bath—perfect for guests, extended living, or a quiet retreat. One more level below, a fully finished basement features a game room, large laundry/utility space, and abundant storage. Outside, a fully fenced half-acre yard offers a massive retreat—whether it’s morning yoga, a weekend party, or a backyard soccer match. Lovingly cared for and recently updated with fresh paint, a newer HVAC system, water heater, deck, driveway, windows, and basement waterproofing, this home is truly move-in ready. Located just minutes from Fort Belvoir’s Walker Gate and major bus routes, Yacht Haven is also home to the Mount Vernon Yacht Club, Riverside and Fort Hunt Parks, and George Washington’s historic Mount Vernon Estate. Come see 4321 Neptune Drive at our Public Open Houses on June 21st & 22nd from 2–4 PM.

Features

4 bedrooms
3 bathrooms
2 carspaces
2475 sq. ft. floor area
22750 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 4 bedroom single-family properties sold in Mount Vernon over the last 12 months, the estimated median property value of 4321 Neptune Dr is $824.95k.

Median value
$824.95k
Estimated value range
$500k - $1.8m
Median days on market
12
Estimated value trend
2%
increase over the last 12 months
Average days on market is based on recent, comparable sales in Mount Vernon. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 4321 Neptune Dr

2025
Sold
$880,000
20 Aug 2025 by Rachel Knapp, of Coldwell Banker Realty
2009
Sold
$435,000
08 May 2009 by Manuel Tagle, of Fairfax Realty Select

Happy sellers in Mount Vernon

92%
92% of sellers in Mount Vernon reported that their sale price either exceeded or met their price expectations.

Mount Vernon stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 5 reviews in Mount Vernon over the last 12 months.

Local market activity for 4 bedroom single-family properties in Mount Vernon

In the last 12 months, 104 four-bedroom single-family properties similar to 4321 Neptune Dr, have been sold.

This represents a 12% increase in four-bedroom single-family properties sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Mount Vernon

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Rachel Knapp

Rachel Knapp is a recommended agent for Mount Vernon.  They have 2 local sales and collected 1 local review across the last 12 months.

  •   5   (17 reviews)
  •  1 Review in Mount Vernon
  •  2 Sales in Mount Vernon
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Wes Stearns

Sellers who recommend Wes Stearns have praised them for being local expert, clear communication, supportive, responsive, reliable, friendly, and great negotiation

  •   5   (284 reviews)
  •  1 Review in Mount Vernon
  •  2 Sales in Mount Vernon
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Amanda Jordan

Sellers who recommend Amanda Jordan have praised them for being local expert, clear communication, dedicated, reliable, empathetic, honest, and supportive

  •   5   (35 reviews)
  •  1 Review in Mount Vernon
  •  1 Sale in Mount Vernon
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Katie Wethman

Sellers who recommend Katie Wethman have praised them for being local expert, responsive, supportive, clear communication, patient, honest, and well-prepared

  •   5   (145 reviews)
  •  1 Review in Mount Vernon
  •  1 Sale in Mount Vernon
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