Exceptional investment property or owner-occupant opportunity in desirable Westville! This fully vacant duplex at 428 Summit Ave offers immediate flexibility for investors seeking rental income or buyers looking to live in one unit while generating income from the other. The property features two separate units - one 1-bedroom apartment and one 2-bedroom apartment - both ready for new tenants or occupancy. The main-floor 1-bedroom unit offers modern flooring, neutral paint, vinyl windows, a kitchen with stainless steel appliances, and an updated full bathroom, along with direct access to the full unfinished basement, with the washer and dryers. The 2-bedroom unit offers comfortable living space and its own basement access as well. The first floor of this unit has a large living room, a dining area, plus a spacious kitchen. Upstairs are the two bedrooms and a sitting area. Gas and electric utilities are split, allowing tenants to maintain their own accounts and helping keep operating costs manageable for the owner. The property also includes a detached garage ideal for storage or potential additional rental income, plus additional basement storage space. Located just 10 minutes from Philadelphia, less than 5 minutes to I-295 and Route 42, and close to major commuter routes, shopping, dining, and local amenities, this property offers strong rental demand and long-term investment potential. Whether you're searching for a South Jersey duplex for sale, an income-producing property near Philadelphia, a house hack opportunity, or a multi-family investment property in Westville, this one checks all the boxes. Contact the listing agent today for additional details or to schedule a private showing.