Upper Mountainside Homes for Sale

**Discover the Charm of Upper Mountainside, NJ**

Nestled in the picturesque borough of Mountainside, Union County, Upper Mountainside is a hidden gem that offers a perfect blend of suburban tranquility and vibrant community life. Known for its stunning natural landscapes, this charming subdivision boasts a variety of homes for sale that cater to diverse lifestyles, making it an ideal destination for families, professionals, and retirees alike.

Upper Mountainside is characterized by its serene environment, with tree-lined streets and spacious lots that provide a peaceful retreat from the hustle and bustle of city life. Residents enjoy access to a range of outdoor activities, including hiking trails and parks, making it a haven for nature enthusiasts. The community is also conveniently located near top-rated schools, shopping centers, and dining options, ensuring that everything you need is just a short drive away.

The homes for sale in Upper Mountainside reflect a range of architectural styles, from charming single-family residences to modern townhouses. Each property offers unique features, with many boasting spacious interiors, updated kitchens, and beautiful outdoor spaces perfect for entertaining or relaxing. Whether you’re searching for a cozy starter home or a luxurious retreat, Upper Mountainside has something for everyone.

Join a welcoming community that values connection and quality of life. If you’re ready to find your dream home in Upper Mountainside, explore our listings today and discover the perfect place to create lasting memories in this enchanting New Jersey neighborhood. Your ideal home awaits!

Newest Upper Mountainside Homes for Sale

$1,299,000

3 Beds ⋅ 2.2 Baths ⋅ 4032392 MLS

You are invited. If you are looking for an "Italian Inspired Villa" this one owner custom built ranch is for you. Situated on a quiet cul-de-sac close to the Watchung Reservation this impressive brick ranch is positioned to take full advantage of all Mountainside has to offer. Tall trees and mature shrubbery artfully frame the exterior. The property offers a tranquil setting while shopping, recreation, school and NYC Summit commuter trains are only a few minutes away. Inside elegant spaces are arranged in an effortless flow as sunlight makes its way in through large windows. On the first floor 3 bedrooms, 2 full baths, powder room, kitchen, dining room, living room, family room with fireplace. Lower level offers large rec room with wet bar, office, powder room and much much more. A Must See!

1080 Prospect Ave, Mountainside Boro

Start Your Search

The data displayed relating to real estate for sale comes in part from the IDX Program of Garden State Multiple Listing Service, L.L.C. Real estate listings held by other brokerage firms are marked as IDX Listing.
The information being provided is for the 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.
Copyright 2026 Garden State Multiple Listing Service, L.L.C. All rights reserved.

Updated: