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237 Mountainside Rd, 
Mendham Twp., NJ 07945

$3,248,000


7

Beds


8

Baths


7,100

Sq Ft


Single Family

Active

Listed by

Jacqueline Haynes

Century 21 The Crossing

973-227-7000

Last updated:

September 14, 2026, 01:29 AM

MLS#

4045766

Source:

NJ GSMLS

About This Home

237 Mountainside Rd

A rare opportunity to own a newly constructed luxury estate where timeless architecture meets modern living. Set on 3.607 private acres in a coveted Mendham setting, this exceptional 7-bedroom, 7 full and 1 half bath residence offers over 7,000 sq ft of beautifully finished living space. A grand foyer welcomes you to elegant formal living and dining rooms, while the chef's kitchen with an oversized center island opens to the breakfast area and impressive great room, creating an ideal space for everyday living and entertaining. The 1st floor also includes a private en-suite bedroom, suited for guests, extended stays or a home office. Upstairs, the primary suite offers dual walk-in closets and a spa-inspired bath, along with four additional en-suite bedrooms. Each bedroom has its own walk-in closet as well as a full bath. There is a spacious laundry room and an open gallery which overlooks the foyer. The finished lower level provides exceptional flexibility with a recreation room, additional bedroom, full bath and abundant storage, offering endless possibilities for a home theater, fitness studio or guest accommodations. A generous sized 3-car garage, with access to the lower level along with exceptional craftsmanship and quality finishes throughout complete this remarkable home. Brand new, never occupied and move-in ready, this residence combines the elegance and character of a traditionally inspired estate with the comfort, efficiency and peace of mind of new construction.

Home Facts

Single Family

8 Baths

7 Bedrooms

Built in 2026

Price Summary

3,248,000

$457 per Sq. Ft.

MLS #:

4045766

Last Updated:

September 14, 2026, 01:29 AM

Added:

a month ago


Rooms & Interior

Bedrooms

Total Bedrooms:

7

Bathrooms

Total Bathrooms:

8

Full Bathrooms:

7

Interior

Living Area:

7,100 Sq. Ft.


Structure

Structure

Architectural Style:

Colonial

Year Built:

2026


Lot

Lot Size (Sq. Ft):

156,816


Finances & Disclosures

Finances

Price:

$3,248,000

Price per Sq. Ft:

$457 per Sq. Ft.

Source:NJ GSMLS
The data relating to real estate for sale on this website 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. Information deemed reliable but not guaranteed. 2026 Garden State Multiple Listing Service, L.L.C. All rights reserved. Notice: The dissemination of listings on this website does not constitute the consent required by N.J.A.C. 11:5.6.1 (n) for the advertisement of listings exclusively for sale by another broker. Any such consent must be obtained in writing from the listing broker. This information is being provided for 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. Date Last Updated September 14, 2026

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.