Rare opportunity in the heart of Yorba Linda! This beautifully remodeled property at 17841 & 17843 Buena Vista Ave offers two fully separate homes on one lot, perfect for multi-generational living, rental income, or investment. The main residence spans approx. 2,861 sq.ft. and features 4 bedrooms, 3 bathrooms, an open-concept floor plan with high ceilings, and a designer kitchen with quartz countertops, island, and stainless-steel appliances. The brand-new, fully permitted ADU adds approx. 1,200 sq.ft. with 2 bedrooms, 2 bathrooms, and a den, offering a private modern living space for family or tenants — complete with separate address, water, and electricity meters. Additional highlights include a 2-car attached garage, expansive 13,440 sq.ft. lot, smart home features, central HVAC, and stylish finishes throughout. Located in a prime Yorba Linda neighborhood near top-rated schools, parks, shopping, and dining. This is a rare turnkey home or income-producing property you won’t want to miss!