Mountainside Boro Real Estate

Mountainside Boro Real Estate

Welcome to Mountainside Boro, a charming town nestled in Union County, New Jersey. This picturesque city offers a perfect blend of small-town charm and modern convenience, making it an ideal place to call home.

Mountainside Boro is known for its beautiful tree-lined streets, well-maintained parks, and friendly community atmosphere. Residents here enjoy a peaceful suburban lifestyle while still being within easy reach of the bustling city of New York. The town's convenient location provides easy access to major highways and public transportation, making commuting a breeze for residents.

In Mountainside Boro, you'll find a variety of housing options, from cozy single-family homes to spacious townhouses. The real estate market in this area is diverse, catering to individuals and families of all sizes and preferences.

Outdoor enthusiasts will appreciate the town's proximity to Watchung Reservation, a sprawling green space offering hiking trails, picnic areas, and scenic views. Additionally, Mountainside Boro boasts top-rated schools, making it an excellent choice for families looking to settle down in a safe and welcoming community.

Whether you're a first-time homebuyer, a growing family, or a retiree looking for a peaceful retreat, Mountainside Boro has something for everyone. Come and discover all that this charming town has to offer – you may just find your perfect place to call home.

Newest Listings in Mountainside Boro

$1,199,000
4 Beds ⋅ 2.1 Baths
Nestled in the heart of Mountainside, this beautifully updated 4-bedroom, 2.5-bath classic Colonial with Hardie Board siding radiates timeless charm while offering the perfect balance of small-town close knit community living and everyday convenience, minutes from Summit and Westfield, with easy access to the direct bus to Manhattan, local library, community pool, & the Watchung Reservation/trails & Watchung Stables, The main level is thoughtfully designed for both daily living & entertaining, with newly renovated white kitchen open to mudroom and laundry area, French sliders lead to large new paver patio overlooking the beautifully private landscaped property, ,ringed by mature trees , grill area & grill gazebo, this backyard oasis is ideal for relaxed evenings or gatherings. 2nd level Boosts large primary ensuite w/vaulted ceiling, 3 add bedrooms & main bath. The full basement offers a spacious recreation room,workroom, playroom & storage. Thoughtful updates completed in recent years make this home truly move-in ready. Highlights include a repaved driveway, new patio & improved drainage, a new garage door system, dedicated EV charging outlet, a renovated basement, refreshed upstairs bathrooms, a custom mudroom w/built-ins, smart switches and updated lighting, a new upstairs AC unit, enhanced landscaping & privacy plantings, front irrigation, a sensor kitchen faucet, fresh interior paint. The fireplace has also been converted to gas, Generator Hook-Up This home is a gem!

1349 Birch Hill Rd, Mountainside Boro

Listing Courtesy Of COLDWELL BANKER REALTY, Contact: 908-623-7828

$959,000
2 Beds ⋅ 3 Baths
Discover this spacious 2-bedroom, 3-bathroom home with 2,378 sq ft on the main floor plus approximately 1,000 sq ft of finished basement space. The home features a renovated kitchen with granite countertops, updated cabinets, appliances, and tile flooring. A full-length attic offers exciting potential for additional bedrooms and a bathroom. The roof is approximately 10 years old, while the HVAC and water heater are less than 5 years old. Property sold AS-IS

456 Bayberry Ln, Mountainside Boro

Listing Courtesy Of YOUR TOWN REALTY, Contact: 855-600-2465

$749,999
3 Beds ⋅ 1.1 Baths
Welcome to 271 Summit Road, a 3 Bedroom, 1.5-Bath ranch set on a corner lot in Mountainside. The single-level layout offers easy, efficient living with Eat in Kitchen, Livingroom, Dining room, Enclosed Porch, Three Bedrooms and Bathroom. The unfinished basement with a 1/2 Bathroom is a blank canvas full of potential for a future rec room, home gym, office, or extra storage, giving the next owner room to make this home their own. Located in Mountainside, residents enjoy easy access to major highways and shopping

271 Summit Rd, Mountainside Boro

Listing Courtesy Of COLDWELL BANKER REALTY, Contact: 908-403-4734

$3,600,000
4 Beds ⋅ 3.1 Baths
Exceptional custom Tudor by architect Hildie Lazar and builder Tom Colicchio (Oct 2020 - Jan 2022) on 1.02 acres at the end of a quiet, private dead-end road. Nearly 4,500 sq ft on three levels:4 bedrooms, 3.5 baths. First floor (2,356 sq ft) designed for aging in place, no steps or level changes. Stone arched entry & open porch lead to a vaulted foyer/dining room & sun-filled living space. Gourmet kitchen w/ top-line appliances, Edgecomb gray cabinetry, & a large quartzite island. Living room w/ built-in bar (wine & beverage refrigerators), remote gas fireplace & built-in bookshelves. 280 sq ft English glass conservatory with remote blinds & backyard access. Mudroom/laundry w/ counters, sink, & custom storage; two-car garage w/underfloor heat & EV charging. First-floor primary suite: vaulted ceilings, patio access, second gas fireplace, spa bath with skylights, rain shower, soaking tub, and marble double vanity. Two walk-in closets connect by secret door to an office w/vaulted ceiling, third gas fireplace, & blue-gray cabinetry. Underfloor heat throughout. Second floor (1,077 sq ft): three bedrooms including a custom bunk room that sleeps 5, reading nook, and two full baths. Finished basement (1,033 sq ft): gym, billiard room, & climate-controlled wine cellar (200 bottles, glass lockable doors). Whole house gas generator. All-native woodland garden w/ 120+ species on winding paths. Wild lawn & remote gas fire pit off patio. 120 sq ft outbuilding could serve as a studio

151 Wild Hedge Ln, Mountainside Boro

Listing Courtesy Of COLDWELL BANKER REALTY, Contact: 908-956-3532

$3,600
pacious and freshly updated combined office space at 917 Mountain Avenue in Mountainside. Located in a building constructed in 1985, Suites 1 and 2 offer approximately 2,328 square feet with six private offices, two conference and reception areas, a kitchenette, lobby, two private bathrooms, storage and new flooring throughout. The flexible layout is ideal for a variety of professional uses and includes ample onsite parking. Conveniently located with easy access to major highways, nearby businesses and surrounding communities.Room dimensions include:Office 1, 10'8" x 14'11"Office 2, 10'8" x 8'11"Office 3, 12'1" x 14'1"Office 4, 9'5" x 10'2"Office 5, 11'4" x 21'0"Office 6, 11'4" x 17'4"Conference and reception area 1, 9'10" x 28'2"Conference and reception area 2, 15'5" x 13'3"Kitchenette, 8'8" x 15'3"Lobby, 15'11" x 6'7"Storage closet, 15'11" x 6'2"

917 Mountain Avenue, Mountainside Boro

Listing Courtesy Of PROMINENT PROPERTIES SIR, Contact: 732-742-3263

$1,680
Bright and freshly updated Suite 2 office space at 917 Mountain Avenue in Mountainside. Located in a building constructed in 1985, this approximately 1,339 square foot suite features two spacious private offices, a conference and reception room, kitchenette, lobby, foyer, new flooring, a private bathroom and ample onsite parking. The flexible layout is ideal for a variety of professional uses, with convenient access to major highways, nearby businesses and surrounding communities. Office 1, 11'3" x 17'2", Office 2, 11'3" x 21'2", Conference and reception room, 15'3" x 12'11", Kitchenette, 8'10" x 15'0",Foyer, 15'11" x 6'4"

917 Mountain Avenue, Suite 2, Mountainside Boro

Listing Courtesy Of PROMINENT PROPERTIES SIR, Contact: 732-742-3263

$1,725
Bright and freshly updated Suite 1 office space at 917 Mountain Avenue in Mountainside. This approximately 1,185 square foot suite features four private offices, a spacious reception and work area, new flooring, a private bathroom and ample onsite parking. The flexible layout is well suited for a variety of professional uses. Conveniently located with easy access to major highways, nearby businesses and surrounding communities.Room dimensions include: Office 1, 12'0" x 13'10", Office 2, 9'6" x 10'1", Office 3, 10'6" x 9'3", Office 4, 10'6" x 14'7", Reception and work area, 15'0" x 27'10"

917 Mountain Avenue, Suite 1, Mountainside Boro

Listing Courtesy Of PROMINENT PROPERTIES SIR, Contact: 732-742-3263

$999,000
5 Beds ⋅ 2.1 Baths
Welcome to this spacious 5-bedroom, 2.5-bath home situated on an almost half acre in desirable Mountainside. Offering an abundance of living space, this residence features generously sized rooms, hardwood floors, two fireplaces, and a finished basement providing additional living and recreation space. The main level offers a comfortable layout with formal living and dining areas and a spacious family room. Outside, enjoy a private backyard with an in-ground pool and deck, ideal for summer entertaining and relaxing. Additional features include a two-car attached garage, circular driveway, central air, and ample storage. Conveniently located near shopping, dining, parks, major highways, and transportation. An excellent opportunity to update and personalize a spacious home in a sought-after Mountainside neighborhood.

472 Summit Rd, Mountainside Boro

Listing Courtesy Of M. DONATO AND COMPANY, Contact: 718-351-8900

$979,000
4 Beds ⋅ 2.1 Baths
Location & Space! 4BRM,2.5BA home located in a sought-after Mountainside quiet neighborhood/spread out upper Central Ave. Leveled big private yard where you can watch the town fireworks. Sunlight-filled rooms, open concept design for today's lifestyle, and gleaming hardwood floors throughout! Inside, you'll find an impressive Living room with a large picture window; the dining room opens to a stylish, updated kitchen w/quartz countertops, center island, abundant cabinetry, S/S appliances, pantry, and access to deck, patio, and a large private wooded backyard. Upstairs offers three BRM/2 baths, incl. a comfortable primary suite with an en-suite bath & WIC. Ground level features a home/office, a powder room, & a large Family room w/views of the deck, backyard, and Balcony. The lower level has an unfinished basement w/high ceilings, perfect for storage today and future potential tomorrow. Recent improvements include a lawn sprinkler system, a reflective natural sunlight device in the kitchen & second-floor hallway, and new HVAC in October 2024. Just minutes from top schools, house worship, shopping, restaurants, parks, major highways, Express bus to Midtown NYC & nearby NJ Transit stations to NYC. Close to Watchung Reservation's scenic trails & local horseback riding. Enjoy the great flow and layout of this home for everyday living and entertaining both indoors and outdoors with location and Nature!

340 Central Ave, Mountainside Boro

Listing Courtesy Of PROMINENT PROPERTIES SIR, Contact: 908-507-9104

$1,750,000
Attractive 5580 SF Of Office Space With High Visibility Signage Opportunity In The Coveted Town Of Mountainside. Currently Used As A Prestigious Law Office, This Spacious Two Story Office Building Features Six Spaces Offices, Two Conference Areas, Four Smaller Offices, An Admin Area, A Tech Room, Kitchenette Area, And Three Bathrooms. Ample Parking Surrounds This Building And Both Front And Rear Entrances Complement The Offering. Convenient To Major Highways, Mass Transit & Amenities. An Ideal Location For Your Commercial Investment!!!

1299 Us Highway 22, Mountainside Boro

Listing Courtesy Of COLDWELL BANKER REALTY, Contact: 908-759-6729

$4,500,000
REDEVELOPMENT OPPORTUNITY! 3 VERY LARGE LOTS FOR SALE: LOT 1 IS A HALF-ACRE RESIDENTIAL LOT IN THE GARDENS SECTION OF WESTFIELD. IT IS LOCATED ON THE CORNER OF MOUNTAIN AVENUE AND MOUNTAINVIEW TERRACE. THE ADJOINING LOTS 2 AND 3 ARE FACING MOUNTAIN AVENUE IN DOWNTOWN MOUNTAINSIDE. IT CURRENTLY HAS A 12,000 SQUARE FOOT BANK BUILDING THAT HAS 3 LEVELS WITH ELEVATOR AND HANDICAP ACCESS. THE COMMERCIAL BUILDING IS SURROUNDED BY PARKING AREAS AND VACANT LAND. THIS IS A VERY RARE OPPORTUNITY TO BUILD A HOME IN ONE OF WESTFIELD'S MOST SOUGHT AFTER LOCATIONS AND REDEVELOP THE MOST VISIBLE LOCATION IN DOWNTOWN MOUNTAINSIDE!!!

855 Mountain Ave, Mountainside Boro

Listing Courtesy Of COLDWELL BANKER REALTY, Contact: 908-812-3000

Start Your Search

board logoThe data relating to the real estate for sale on this web site comes in part from the Internet Data Exchange Program of the NJMLS. Real estate listings held by brokerage firms other than Century 21 AG Realty Group are marked with the Internet Data Exchange logo and information about them includes the name of the listing brokers. Some properties listed with the participating brokers do not appear on this website at the request of the seller. Listings of brokers that do not participate in Internet Data Exchange do not appear on this website. All information deemed reliable but not guaranteed. Last date updated: . Source: New Jersey Multiple Listing Service, Inc. “2026 New Jersey Multiple Listing Service, Inc. All rights reserved.”