3 Bedroom Apartments for Rent in Mountainside, NJ (44 Rentals)

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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.

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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.

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27 Diven St
3 Bedroom Apartments

27 Diven St

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

14 Euclid Ave

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

71 Morris Ave

71 Morris AveSummit, NJ 07901

Smart Renter's Guide: Calculating Affordable Rent & Housing Costs

Wondering how to determine your rental budget? This comprehensive guide covers everything from the 30% rule to hidden fees and effective budgeting strategies.

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616-618 Stirling Pl
3 Bedroom Apartments

616-618 Stirling Pl

616-618 Stirling PlWestfield, NJ 07090
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78 Orchard St
3 Bedroom Apartments

78 Orchard St

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

Villas on the Park

25-51 Springholm DrBerkeley Heights, NJ 07922
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900 South Ave W
3 Bedroom Apartments

900 South Ave W

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

100 E Broad St

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

Pineview Gardens

884 S Springfield AveSpringfield, NJ 07081
  • Utilities Included

Navigating the Rental Market: Tips for First-Time Renters

Entering the rental market? Learn these simple tips and strategies to avoid common pitfalls and make confident choices. Rent with peace of mind.

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Beechwood at Summit
3 Bedroom Apartments

Beechwood at Summit

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

501 South

501 South Ave WWestfield, NJ 07090
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Worthington House
3 Bedroom Apartments

Worthington House

160-174 Summit AveSummit, NJ 07901
  • Utilities Included
Showing Results 1-44, 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 StationC31,555 Sq Ft$5,254
Lakeside at Briant Park$2.71/sq.ft. - Three Bedroom1,215 Sq Ft$3,295
123-127 Summit Ave3 Bed 2 Bath1,200 Sq Ft$5,600

Cheapest Available Mountainside 3 Bedroom Apartments

As of May 02, 2026 the lowest priced 3 Bedroom apartment unit in Mountainside, NJ is the $2.71/sq.ft. - Three Bedroom Model starting from $3,295 at Lakeside at Briant Park in the Downtown 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 $4,718. 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$3,295
Providence Place$2.81/sq.ft. - Residence 3B$4,850
Vermella Garwood StationC3$5,254
123-127 Summit Ave3 Bed 2 Bath$5,600

A Seasoned Property Manager's Step-by-Step Guide to Getting Your Deposit Back

Learn the property manager's true secrets to a zero-deduction move-out. Use this step-by-step guide on documentation, cleaning, and lease-reading to reclaim your security deposit.

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10 Hidden Costs of Renting You Should Budget for Before Signing a Lease

Avoid financial stress when renting. Learn about the 10 most common hidden costs—from pet fees to utilities—you must budget for before you sign a lease.

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Don't Settle: How to Negotiate Your Apartment Lease and Save Money

Discover the insider tips from an attorney and real estate agent on how to negotiate your next apartment lease. Find out what's on the table and what's not, so you can save money and get the best terms possible.

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The Ultimate Long-Distance Moving Checklist: Tips from a Real Estate Pro

Moving is tough, especially long-distance. Learn how to minimize stress & expenses with proven strategies from a real estate pro, covering everything from logistics to finances.

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Cash or credit? Understanding the Importance of Credit Score in Real Estate and Renting

Discover how your credit score impacts your ability to lease or buy a home. Learn how credit scores are determined, how to check yours, and strategies to improve it for real estate success.

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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.

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

Explore Mountainside, NJ Rentals by Map

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See the most popular apartments and homes in Mountainside, NJ

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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 $4,718.

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 1,000 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

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A Seasoned Property Manager's Step-by-Step Guide to Getting Your Deposit Back

Written by: Lauren Harrington

I’m going to talk with you as a seasoned property manager and friend. So, let’s start with your security deposit. I want you to think about this guide as insider information. You deserve your deposit back.

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Expert Solutions for Creating the Perfect Work-From-Home Apartment Layouts

Written by: Lauren Harrington

This article is based on first-hand experience managing apartment communities and helping renters adapt to their spaces after moving in.

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What Does “Rent Burdened” Mean? How Much Rent Is Too Much

Written by: Lauren Harrington

This article draws from first-hand renter experiences and recurring financial challenges reported after moving in.

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Maximizing Your Refund: Essential Tax Tips for Renters

Written by: Christine Leonard, Esq.

Other than tax professionals, I can’t think of anyone who looks forward to tax season. For everybody else, April is a stressful month to collect information and meet deadlines.