INVESTMENT OPPORTUNITY IN MAYFAIR! Looking for a property that can help offset your mortgage while building long-term equity? Welcome to 4221 Cottman Avenue, a 1+1 duplex in the heart of Mayfair offering an excellent opportunity for an investor, first-time buyer, or savvy owner-occupant. The property does need some work and updating, but the potential is here to create value while taking advantage of rental income from the second unit. One unit is currently owner occupied, while the other unit is vacant and ready for a new tenant or owner. The first-floor unit features a comfortable 1-bedroom, 1-bathroom layout with the added benefit of a full basement exclusively dedicated to the first floor. The basement provides valuable additional living and storage space and includes the potential to be utilized as a second bedroom, along with a full bathroom and separate laundry room. The second-floor unit offers another 1-bedroom, 1-bathroom layout, providing a straightforward rental setup. All appliances are included. The electric and gas are separately metered, making this property especially appealing for an owner looking to have tenants contribute directly toward their utility costs. Mayfair continues to be a popular Northeast Philadelphia neighborhood known for its convenient location, established residential streets, shopping, restaurants, services, and easy access to major roadways. Cottman Avenue puts you close to Frankford Avenue and the area's many shopping and dining options, including the Mayfair Shopping Center and the extensive commercial corridor along Frankford Avenue. Mayfair Shopping Center Mayfair Business Improvement District The location also provides convenient access throughout Northeast Philadelphia and surrounding communities, with connections to major routes and regional destinations. Residents enjoy nearby parks, recreation, neighborhood businesses, restaurants, supermarkets, and everyday conveniences, while Center City Philadelphia and surrounding suburbs are accessible by major transportation routes. For investors, the 19135 rental market provides an established pool of rental housing and current rental pricing that makes the area attractive for buyers looking at income-producing properties. As of September 2026, Realtor.com reports a median rent of approximately $1, 300 per month for 19135, while Zillow reports an average of approximately $1, 150 for one-bedroom rentals and $1, 400 across all bedroom types and property types. Actual achievable rent for these units will depend on condition, finishes, size, and amenities. Whether you're looking to live in one unit and rent the other, expand your investment portfolio, or take on a property with upside potential, 4221 Cottman Avenue offers an opportunity to create value in an established Northeast Philadelphia neighborhood. Property is being offered in its current condition and does require work—bring your vision and take advantage of the possibilities!