Centrally located in the heart of San Diego County with convenient access to I-805 and other major freeways, this unique Serra Mesa property was utilized by the current owner as a primary, private residence while also producing income as it has four separate living quarters! The four living areas include the following: 1) a 3 bedroom, 2 bathroom main home complete with a fireplace, a bright, open kitchen, and an attached two-car garage, 2) a large bedroom with no shared walls, a bathroom, a walk-in closet, balcony, and a private entrance, 3) a permitted studio Companion Unit (ADU) with a private bathroom, full kitchen and a private entrance, and 4) an additional bright, private living area with a private entrance! Property features include a newer roof (2017), new water heater, owned solar (19 panels), 5 skylights (2 that are remote-controlled and solar-powered), and a bright sunroom with a steam sauna that conveys with the sale. Additional features include fresh paint and new LVP flooring and baseboards in the main living area, central AC in the main living area, a mini split in the upstairs bedroom, and ample storage. The backyard is turfed and fenced, has an aesthetically pleasing stone patio, a propane-fueled fire pit, two raised garden beds, and is adorned with calla lilies, dragon fruit plants, lemon, orange, and banana trees! The front and side yards are adorned with hydrangeas, azaleas, lilies, roses, and a queen palm.