3251 Mountainside Drive Located in one of Corona's most desirables neighborhoods - Sierra del Oro. Closest to orange county, close access to 91 and 71 freeways and shopping. This is a very comfortable floor plan with a formal living and dining room open kitchen with breakfast area and family room with a fireplace. Laundry area and guest bathroom are downstairs. The back yard is great for entertaining, party covered. This home has had the following upgrades. Waterproof luxury vinyl flooring in two of rooms upstairs. Solar panels - the maximum amount that fits the property's roof - Solar was purchased and own free and clear. Artificial grass – in the front and part of the back yard, Pavers in the front of the house instead of the cement. All new exterior paint is new about 2 years old. All wood trim around the windows and eaves replaced with a high quality wood when house was painted approx. 2 years ago. Kitchen upgraded, wet bar and a counter removed, creating more open transition into the breakfast area and family room. Beautiful French doors to the backyard. Alumawood patio cover in the backyard (brings more shade into the family room, keeping it cooler during summer).New dual pane windows in the family room, in the master bedroom and in the master bathroom. Solar screens on the windows in the three bedrooms upstairs. New AC and furnace unit - about 2 years old.