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$380,000
STUNNING NEWLY RENOVATED OFFICE BUILDING ON HISTORIC NEWTON SQUARE (EST. 1890), THIS EXCEPTIONAL PROPERTY OFFERS 3 FLOORS CONSISTING OF 4 OFFICE SUITES WITH FLEXIBLE CONFIGURATION OPTIONS, PRIVATE ENTRANCES, AND EXCELLENT VISIBILITY LOCATED IN THE T-6 ZONE. THIS WOULD MAKE IT IDEAL FOR A MULTITUDE OF USES. THE LOWER LEVEL FEATURES ONE SUITE WITH 3 PRIVATE OFFICES ALONG WITH A BATHROOM AND UTILITY ROOM. THE MAIN STREET LEVEL INCLUDES 4 LARGE OFFICES, A KITCHENETTE, 2 BATHROOMS AND CAN FUNCTION AS ONE LARGE SUITE OR BE DIVIDED INTO 2 SUITES WITH SEPARATE PRIVATE ENTRANCES. THE UPPER LEVEL OFFERS 2 LARGE OFFICES, A FULL BATHROOM, AND ITS OWN PRIVATE ENTRANCE. ENJOY DOWNTOWN VIEWS AND WALK TO TO DOWNTOWN NEWTON. 4 SEPARATE ELECTRIC METERS MAKING MULTI-TENANT LEASING SIMPLE AND EFFICIENT. IDEALLY LOCATED NEAR THE COURTHOUSE AND THE DOWNTOWN BUSINESS DISTRICT WHICH INCLUDES RESTAURANTS, SHOPPING, THE COUNTY COLLEGE AND ACESS TO MAJOR ROUTES 94 AND 206. THIS IS A MUST-SEE OPPORTUNITY! CURRENTLY THE SELLERS IS SEEKING APPROVAL FROM TOWN TO CONVERT THE 2ND FLOOR UNITS INTO 2 APARTMENTS. SELLERS DOES NOT HAVE APPROVALS AT THIS POINT. THIS IS AN "AS IS" SALE, NOT CONDITIONED UPON APPROVALS. OPPORTUNITY AWAITS YOU !

11 High St, Newton Town

Listing Courtesy Of RE/MAX SELECT, Contact: 973-625-0450

$600,000
Prime Downtown Newton Redevelopment Opportunity. Exceptional investment and development opportunity in the heart of thriving downtown Newton, the County Seat. Prominently located on desirable Spring Street, this commercial building is ready for a complete rehabilitation, offering a rare chance to reimagine a cornerstone property in one of Northwest New Jersey's most active and walkable business districts. Surrounded by established restaurants, boutiques, professional offices, the courthouse, and in close proximity to Sussex County Community College property, this location benefits from steady foot traffic and strong community presence. Ideal for mixed-use transformation, the property lends itself to a dynamic redevelopment concept featuring three street-level retail spaces with residential apartments on the upper floors (subject to approvals), creating an attractive blend of commercial vitality and residential demand in the downtown core. Whether you're an investor, developer, or business owner seeking a signature downtown presence, this is a blank canvas with substantial upside potential. The included conceptual rendering reflects one vision for honoring the historic character of the site while maximizing modern commercial and residential appeal through thoughtfully designed upper-level apartments positioned above vibrant ground-floor retail. Property requires total rehabilitation. Buyer responsible for all due diligence, inspections, zoning verification, and approvals.

132 Spring St, Newton Town

Listing Courtesy Of WEICHERT REALTORS, Contact: 845-742-6647

$799,000
Exceptional opportunity to own an updated, approximately 3,680 sq ft single-story commercial building just one block from the center of Newton. Recently renovated throughout, this versatile property offers multiple exterior doors, allowing for flexible use configurations and multiple units if desired. With 26 dedicated parking spaces, it easily accommodates clients, staff, and high-traffic operations. Inside, the building features two reception areas, waiting rooms, multiple private offices, treatment or conference rooms, a large open room that can be divided to suit your needs, and a kitchen area for staff convenience. The layout supports a wide range of professional, medical, or commercial uses. The building is handicapped accessible and includes two bathrooms, public water/sewer, and natural gas services. Exterior signage provides excellent visibility on a well-traveled street, ensuring strong exposure for any business. An additional bonus building in the rear offers even more possibilities use for storage or refurbish it into another functional office, professional space, or medical facility. This is a rare chance to secure a spacious, modern, single-floor commercial building with exceptional adaptability in the heart of Newton.

80 Mill St, Newton Town

Listing Courtesy Of KISTLE REALTY, LLC., Contact: 973-250-3299

$2,000
First Month is FREE! Versatile Office & Warehouse Space in T4 Mixed-Use Zone. This flexible unit is ideal for a variety of business needs, featuring a front office with store front presence, parking in front and back, a half bath with a spacious warehouse that includes a small kitchen and a back garage door 9ft 5.5" that offers added convenience for staff or operations. A tall bay door makes loading and unloading products or storage items effortless, while a window AC unit provides comfort. Zoned T4 Mixed-Use, the property allows for multiple potential business opportunities (must confirm with the Town for approved uses). Restrictions include: no mechanic or auto body shop, no used car sales lot (requires planning board approval), and no detailing, mechanical, or truck repair businesses. As with all businesses in this zone, Town approval is required prior to lease signing to ensure zoning compliance. With a practical layout, functional features, and an unbeatable price point, this space is a great opportunity to establish or expand your business in a desirable mixed-use area.

2026 Diller Ave, Newton Town

Listing Courtesy Of WEICHERT REALTORS, Contact: 917-686-1202

$1,500
First Month is FREE! This 696 sq. ft. space is an excellent opportunity for the perfect launchpad for your next product or business venture. Featuring a street-facing bay door 9ft 7in in height, it offers effortless pick-ups, drop-offs, and easy access for deliveries. Ceiling is approx 11ft in Height. The interior is clean, functional, and move-in ready and designed to support your next adventure with convenience and flexibility. Located in the T4 Mixed-Use zone, the property allows for a variety of potential uses (must be confirmed with the Town). Restrictions include: no mechanic or auto body shop, no used car sales lot (requires planning board approval), and no detailing, mechanical, or truck repair businesses. Whether you're looking for a practical storage solution or a launch point for your business, this space combines accessibility, versatility, and value in one convenient package.

2026 Diller Ave, Newton Town

Listing Courtesy Of WEICHERT REALTORS, Contact: 917-686-1202

$634,900
Upgraded 3-story brick building ready for use change of continued as offices. Great investment opportunity. Possible owner/user, or change use to a variety of options permitted under T6 Core zoning standards. Duplex converted to offices by Sussex County in the 1960's to professional office. Renovated in 2007, with additional work in 2017, 2019 & 2021. Computer switching system creates secured individual offices. New mini split HVAC and natural gas boiler. Easily split for owner/user, multiple professional use tenant, daycare, senior care, multi-family or mix use. Spring Street, Sussex County Courts, Administration Buildings, Sussex Community College, Thor Labs and Newton Medical Center. First floor tenant vacating July 2026 - perfect opportunity for owner/user with supplemental 2nd&3rd floor income.

14 Church St, Newton Town

Listing Courtesy Of FAIRCLOUGH REALTORS, Contact: 973-726-7800

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.”