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Ranch-Style Duplex with Acreage
For Sale
$374,900
Pending

646 Oak Summit Road, Millbrook, NY 12545

Residential Income, Millbrook, NY

Property SizeContact for details
Lot Size1.70 Acres
Days on Market97

Property Features for 646 Oak Summit Road

General Information

Property type Residential Multi Family
Property subtype Duplex
Bedrooms 3
Bathrooms 2
Full bathrooms 2
Rooms Bedroom 2, Bathroom 2, Bathroom 1, Basement, Bedroom 1, Dining Room, Bedroom 3
Parking features Garage, Driveway, Oversize
Interior features First Floor Bedroom, First Floor Full Bath, Ceiling Fan(s), Eat-in Kitchen, Entrance Foyer, Formal Dining, Open Floorplan, Original Details
Fireplace 1
Basement Full
Elementary school Alden Place Elementary School
Middle school Millbrook Middle School
High school Millbrook High School
Elementary school district Millbrook
Middle school district Millbrook
High school district Millbrook
Standard status Pending
APN 135889-6764-03-260398-0000
Lot size 1.70 Acres

Taxes and HOA fees

Tax Year 2025
Tax Annual Amount 9002

Utilities

Sewer type Public Sewer
Heating system Baseboard
Water source Public

Amenities

fireplace
hardwood floors
deck
gazebo
shed

Building Details

Year built 1963
Number of units 2
Flooring type Hardwood, Tile
Building materials Aluminum Siding, Block, Brick
Architectural style Ranch
Listing Agency: KW MidHudson · Keller Williams Realty
Listed By: Lisa Wohlmuth
Added: Jun 22 Changed: Sep 15 Last Checked: Sep 26 at 3:06AM
MLS# 989487

Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

This ranch-style duplex, built in 1963, occupies a 1.7-acre corner parcel and includes two distinct living areas. The upper residence offers more than 2,000 square feet with three bedrooms, one full bath, a bonus room, formal living and dining rooms, an eat-in kitchen, hardwood floors, a fireplace, and a large deck. It also has an attached two-car garage. The lower residence provides 2,036 square feet, a separate entrance, and a layout described as a legal second dwelling, with renovation needed throughout the property.

Exterior features include two gazebos, a storage or garden shed, mature landscaping, an expansive yard, and a U-shaped driveway. Public water and public sewer serve the property, while baseboard heat, aluminum siding, block and brick construction, and tile and hardwood flooring are also present. The address is within the Millbrook school district and offers access to the Taconic, Millbrook Village Center, Lagrangeville, restaurants, hiking, boutiques, and other Hudson Valley amenities.

Key Highlights

  • 1.7‑acre corner lot at 646 Oak Summit Road, Millbrook, NY 12545
  • Two‑unit ranch‑style property built in 1963
  • Upper unit exceeds 2,000 sq. ft. and includes 3 bedrooms, 1 full bath, bonus room, fireplace, and attached 2‑car garage

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Kitchen & Bath Showroom Adult Day Care Travel Agency

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

42
Businesses Nearby

Demographics for 12545, NY

4,741
Population
2,492
Households
1.9
Avg Household Size
45
Median Age
41%
College-Educated
94%
High-School Grad
56.7 sq mi
ZIP Area
84
Density / Sq Mi
$77,991
Median Household Income
$46,282
Median Earnings
$1,207
Median Rent
$414,800
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two-unit ranch property with separate entrances, expansive grounds, and renovation potential in the Millbrook school district.
Where is this duplex located?
The property is located at 646 Oak Summit Road Millbrook, NY.
What is the asking price?
The asking price for this property is $374,900.
What are key features of this property?
This property features: 1.7‑acre corner lot at 646 Oak Summit Road, Millbrook, NY 12545; Two‑unit ranch‑style property built in 1963; Upper unit exceeds 2,000 sq. ft. and includes 3 bedrooms, 1 full bath, bonus room, fireplace, and attached 2‑car garage
More about this property
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