421 Union Ave , Mount Vernon, NY 10550
$570,000
- 3
- beds
- 1 full · 1 half
- baths
- 5,227
- sqft
- 1921
- year built
$570,000
421 Union Ave , Mount Vernon, NY 10550
- 3
- beds
- 1 full · 1 half
- baths
- 5,227
- sqft
- 1921
- year built
- Status:
- Active
- MLS #:
- 1054921
- County:
- Westchester
- Listed By:
- Dominique Freeman - Prominent Properties Sotheby's
- Office Phone:
- (201) 768-9300
- Agent Email:
- dominiquef103@gmail.com
Sponsoring Broker: Steven Domber, Berkshire Hathaway HomeServices Hudson Valley Properties
Charming and full of character, this inviting home offers a wonderful blend of classic details, comfortable living spaces, and a beautifully open outdoor setting. The front exterior creates an appealing first impression with its gabled roofline, welcoming entry, mature landscaping, and a broad front window that brings natural light into the home. A large tree and neatly maintained lawn add to the established feel, while the front walkway leads to a covered entry that feels warm and approachable. One of the standout features is the enclosed front porch or sunroom, a bright transitional space with abundant windows, rich wood flooring, a wood ceiling, and a hanging light fixture that enhances the home's timeless personality. This area provides a pleasant spot to enjoy morning light, set up a reading nook, or create an additional sitting space. From there, French doors open into the main living area, where natural light, tall ceilings, and dark wood floors create a comfortable atmosphere with a classic look. The living room offers a spacious central gathering area with multiple windows, ceiling fan lighting, and an easy flow into adjacent rooms. French doors add visual interest and separation while still keeping the layout open and connected. Just beyond, the dining room is generous in length and well suited for everyday meals, larger gatherings, or a flexible combination of dining and workspace needs. Large windows brighten the room, and the continued wood flooring helps tie the main level together. The kitchen presents a stylish contrast of dark cabinetry, light countertops, and a mosaic tile backsplash. Recessed lighting and a window above the sink add brightness, while the layout provides good cabinet storage and practical work areas. An adjoining breakfast nook or casual dining corner is surrounded by windows, creating a cheerful place for coffee, meals, or extra prep space. The bedroom shown is filled with natural light and features wood flooring, multiple windows, and a simple, comfortable layout that feels airy and efficient. The bathroom has been updated with clean finishes, including a modern vanity, bright wall tile detail, and a window that adds natural light and ventilation. Outside, the backyard is a major highlight. The lot opens to a large lawn framed by mature trees and established hedges, offering a peaceful backdrop and a sense of openness. A substantial paved area provides room for outdoor seating, entertaining, or other uses, while the expansive green space offers flexibility for recreation, gardening, or simply enjoying the setting. The deep yard and surrounding greenery make this outdoor area especially memorable. Throughout the home, the combination of classic architectural touches, bright windows, wood flooring, and updated kitchen and bath spaces creates an appealing opportunity for someone looking for character and functionality in one property. This home offers inviting indoor spaces, a welcoming front presence, and an exceptional backyard that adds meaningful room to spread out and enjoy the outdoors.
Highlights
- Residential
- Single Family Residence
- Built in 1921
- 0.12 Acre Lot
- 51 days on Market
-
- Bedrooms
- 3
-
- Bathrooms
- 1 full · 1 half
-
- Year Built
- 1921
-
- Architectural Style
- A-Frame
-
- Construction Materials
- Stucco
-
- Parking Features
- On Street
-
- Living Area
- 5227.0
-
- Appliances
- Refrigerator, Range, Oven
-
- Cooling
- Ductless
-
- Heating
- Other
-
- Basement
- Full
-
- Acres
- 0.12
-
- Utilities
- Electricity Available
-
- Water
- Public
-
- County
- Westchester
-
- City
- Mount Vernon
-
- Zip Code
- 10550
-
- High School
- Mt Vernon High School
-
- Middle School
- Benjamin Turner Middle School
-
- Elementary School
- Edward Williams
-
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Price History
| 09/24/2026 | Listed | $570,000 |
| Source: OneKey MLS #1054921 | ||
| 05/12/2026 | Off Market | — |
| Source: OneKey MLS #998865 | ||
Source: MLS Data
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There are currently 296 properties available in Mount Vernon, with 0 under contract to close soon. Properties in the city have an average sale price of $465,976 and typically spend 181 days on the market before being sold.
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Source: ez Home Search, MLS Data
Frequently Asked Questions
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How do I get more information about 421 Union Ave?
Click Ask a Question to talk with our team. You already know it is a 3 bed, 1 bath, listed for $570,000. We can talk through recent upgrades, potential seller motivation, how this single family residence compares to others in Mount Vernon, and can even get you in to see the property quickly.
How do I get a virtual tour of 421 Union Ave?
Yes! A virtual tour is available for 421 Union Ave. Click here to view the full walkthrough and explore every room at your own pace. If you would like a guided virtual showing or have questions along the way, we can connect you with our local expert to walk you through it live.
How much is the monthly mortgage payment for 421 Union Ave?
With a 20% down payment and a 30-year fixed loan at an illustrative 7.25% rate, the ez Mortgage Calculator estimates the monthly payment for 421 Union Ave at around $4,103. This includes estimated property taxes and insurance.
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How do I get pre-approved to buy 421 Union Ave?
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Can I negotiate the asking price for 421 Union Ave?
In most cases, yes. Whether 421 Union Ave is priced competitively or not, your best offer depends on your personal situation, the seller's timeline, and recent activity in Mount Vernon's market. Our preferred local partner will help you craft a strategy—factoring in comparable properties that have sold, timing, and deal structure—to make a smart, strong offer. Click here to ask about negotiation opportunities.
How do I make an offer on 421 Union Ave?
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What is the price per square foot for this home?
This home is listed at $570,000 with 5,227 sqft of space—that comes out to approximately $109 per square foot.
How long has this property been on the market?
421 Union Ave was listed on September 24, 2026, which means it's been on the market for 51 days.
Want to keep tabs on it? Click the ♥ to favorite this home and get notified of price drops or changes.
When was this house built?
This home was built in 1921, making it approximately 105 years old.
What is the lot size of this property?
421 Union Ave sits on a 0.12-acre lot, which is 5,227 square feet.
What schools are assigned to this property?
Based on MLS info, this home is zoned for:
- Elementary: Edward Williams
- Middle: Benjamin Turner Middle School
- High: Mt Vernon High School
Want to see how these schools compare? Check out our Westchester County School Guide to see ratings, reviews, and more for the schools in the area.
What are the property taxes for 421 Union Ave?
The most recent public record shows annual property taxes for 421 Union Ave were approximately $10,312. This may change with reassessment or exemptions. Our local partner can verify current tax amounts and help you estimate future costs based on your situation.
Is 421 Union Ave still available for sale?
Yes, this home is still available! Click the ♥ to favorite it so you don't miss any changes—or ask our local expert to schedule a time to see it in person.
Source: ez Home Search, MLS Data
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Listing information provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information deemed reliable but not guaranteed by the MLS. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. Copyright 2026, OneKey MLS. All rights reserved.
Last Updated: November 14, 2026 at 01:43AM | Source: OneKey MLS | MLS#: 1054921
