3 Bedroom Apartments for Rent in Mountainside, NJ (47 Rentals)

How Many Bedrooms?Done
Select your price rangeDone
to
Note: Properties with the Total Monthly Price badge include all required fees. Hover over the badge for details.
Lifestyle Matching SearchDone
Learn more about Lifestyle Search
By AmenitiesDone
By Community TypeDone
Features and AvailabilityDone
Done

Renting with Roommates: Realistic Expectations for Shared Lease

Sharing a lease? Learn how to set clear expectations with your roommates on routines, bills, and cleaning to ensure a successful and peaceful shared living arrangement.

Read Article
close
View Me
1832 E 2nd St, Unit 2Fl
$2,850
Total Monthly Price

Total Monthly Price

Base Rent
$2,850
Total Monthly Price
$2,850
3 Bedroom Apartment Available Now

1832 E 2nd St, Unit 2Fl

1832 E 2nd StScotch Plains, NJ 07076
close
View Me
91 Broad St, Unit 2
$3,250
Total Monthly Price

Total Monthly Price

Base Rent
$3,250
Total Monthly Price
$3,250
3 Bedroom Apartment Available Now

91 Broad St, Unit 2

91 Broad StSummit, NJ 07901
property at 3115 Park Pl

$4,900

Total Monthly Price

Total Monthly Price

Base Rent
$4,900
Total Monthly Price
$4,900

3 Bedroom, 4 Bath Townhome for Rent

Available Now

3115 Park Pl

SpringfieldNJ07081

Roommate Matching: Finding the Right Fit and Avoiding Pitfalls

When searching for a roommate, follow this list of essential steps and set clear expectations to create a solid foundation for a harmonious living situation.

Read Article

Renting Smart: Lease Basics Every Renter Needs

Demystify Your Rental Lease. Learn the basics about renting, deposits, and tenant/landlord responsibilities. Rent smart and avoid surprises. | Renter University at ApartmentHomeLiving.com

Read Article
close
View Me
27 Diven St
3 Bedroom Apartments

27 Diven St

27 Diven StSpringfield, NJ 07081
close
View Me
14 Euclid Ave
3 Bedroom Apartments

14 Euclid Ave

14 Euclid AveSummit, NJ 07901
close
View Me
71 Morris Ave
3 Bedroom Apartments

71 Morris Ave

71 Morris AveSummit, NJ 07901
close
View Me
616-618 Stirling Pl
3 Bedroom Apartments

616-618 Stirling Pl

616-618 Stirling PlWestfield, NJ 07090
  • Smoke Free
close
View Me
78 Orchard St
3 Bedroom Apartments

78 Orchard St

78 Orchard StSummit, NJ 07901
close
View Me
Villas on the Park
3 Bedroom Apartments

Villas on the Park

25-51 Springholm DrBerkeley Heights, NJ 07922

How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide

Finding the right apartment starts with three things: location, cost, and amenities. Get the insider perspective from a real estate professional on how to nail all three.

Read Article
close
View Me
900 South Ave W
3 Bedroom Apartments

900 South Ave W

900 South Ave WWestfield, NJ 07090
close
View Me
100 E Broad St
3 Bedroom Apartments

100 E Broad St

100 E Broad StWestfield, NJ 07090
close
View Me
Pineview Gardens
3 Bedroom Apartments

Pineview Gardens

884 S Springfield AveSpringfield, NJ 07081
  • Utilities Included
close
View Me
Worthington House
3 Bedroom Apartments

Worthington House

160-174 Summit AveSummit, NJ 07901
  • Utilities Included

The Art of the Rental Viewing: What to look for during a property tour

Touring a rental? This guide helps you know exactly what to look for, from safety features to hidden flaws, so you can confidently sign your lease or keep searching.

Read Article
close
View Me
Beechwood at Summit
3 Bedroom Apartments

Beechwood at Summit

43 Woodland AveSummit, NJ 07901
  • Utilities Included
close
View Me
501 South
3 Bedroom Apartments

501 South

501 South Ave WWestfield, NJ 07090
Showing Results 1-47, Page 1 of 1

Mountainside, NJ Local Guide

Largest Available Mountainside 3 Bedroom Apartments

The largest available 3 Bedroom apartment unit in Mountainside, NJ is found at Providence Place in the Benders Corner neighborhood and is 1,724 square feet priced from $4,850. Vermella Garwood Station in the Wychwood neighborhood has the second largest 3 Bedroom, which is sized at 1,555 square feet and currently listed start at $5,254. Here is today’s list of the largest available 3 Bedroom units in Mountainside:

Apartment ListingModel NameSquare FootagePriced From
Providence Place$2.81/sq.ft. - Residence 3B1,724 Sq Ft$4,850
Vermella Garwood StationC21,555 Sq Ft$5,254
Lakeside at Briant Park$2.71/sq.ft. - Three Bedroom1,215 Sq Ft$3,700
123-127 Summit Ave3 Bed 2 Bath1,200 Sq Ft$5,600

Cheapest Available Mountainside 3 Bedroom Apartments

As of June 16, 2026 the lowest priced 3 Bedroom apartment unit in Mountainside, NJ is the $2.71/sq.ft. - Three Bedroom Model starting from $3,700 at Lakeside at Briant Park in the South Mountain neighborhood. The second most affordable Mountainside 3 Bedroom is the $2.81/sq.ft. - Residence 3B Model at Providence Place starting at $4,850 in the Benders Corner neighborhood. The average price for all 3 Bedroom apartments in Mountainside is currently $4,363. Here is today’s list of the cheapest available 3 Bedroom options in Mountainside:

Apartment ListingModel NamePriced From
Lakeside at Briant Park$2.71/sq.ft. - Three Bedroom$3,700
Providence Place$2.81/sq.ft. - Residence 3B$4,850
Vermella Garwood StationC3$5,254
123-127 Summit Ave3 Bed 2 Bath$5,600

Real Estate and Rental Term Glossary | ApartmentHomeLiving.com Renter University

From the letter A all the way to the letter Z, the Real Estate and Rental Term Glossary from the content team at ApartmentHomeLiving.com provides our visitors and shoppers with a little clarity and helpful guidance in navigating the real estate world through definitions and explainers for the top subjects and terms that someone may come across during the leasing, buying, or selling process.

Read Article
Decorative image

Quick Rent Budget Calculator

How much rent can you afford?

The common "Rule of Thumb" is that rent should be no more than 30% of your income. How much is that? Enter your monthly income and click "Calculate My Budget" to find out.

decorative image of people with a giant lease agreement

Remember the 3 Rules of Real Estate:
Location, Location, Location!

Explore Mountainside, NJ Rentals by Map

Decorative image of map

See the most popular apartments and homes in Mountainside, NJ

View Map
Mountainside, NJ Apartments Map
View Map
Mountainside, NJ Rental Homes Map

Frequently Asked Questions about 3 Bedroom Mountainside Apartments

How much is the average rent for a 3 Bedroom Mountainside Apartment?

The average rent for a 3 Bedroom Apartment in Mountainside is $4,363.

What is the largest available 3 Bedroom Mountainside Apartment for rent?

Today's apartment with the most square footage in Mountainside is a 1,724 square feet unit starting from $4,850 at Providence Place.

What is the average size for Mountainside 3 Bedroom Apartments for rent?

The average size for a 3 Bedroom rental in Mountainside is currently 1,633 sq ft.

Expert Rental Resources

The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.

Articles, How-To's, and Tips

decorative image for How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide article

How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide

Written by: Robin Stewart

Evaluating rental properties for clients draws many parallels to house-hunting. Whether an apartment, loft, townhouse, or other rental, finding the right place means finding “home” for your client.

decorative image for Pet-Friendly Renting: Everything You Need to Know Before You Move article

Pet-Friendly Renting: Everything You Need to Know Before You Move

Written by: Christine Leonard, Esq.

For so many of us, pets are the best companions and a big part of our lives. For this reason, a pet-friendly house or apartment is often a very important - and nonnegotiable - part of a move.

decorative image for Creative Ways Developers Reimagine Retail Spaces as Residential Units article

Creative Ways Developers Reimagine Retail Spaces as Residential Units

Written by: Robin Stewart

Adaptive reuse is when a commercial property is converted and repurposed. The real estate industry has embraced a growing number of these projects.

decorative image for Neighborhood and Market Insights: How to Choose the Right Area to Rent article

Neighborhood and Market Insights: How to Choose the Right Area to Rent

Written by: Robin Stewart

Apartment-hunting can be a gargantuan task. Renters have a wish list of items—some luxuries, some necessities—but finding what you seek in the right place is perhaps the most important part of the journey.