3311 La Costa Ave Exquisite 5-Bedroom, 3-Bathroom La Costa Retreat with Two Permitted Bonus Living Spaces. Nestled in the heart of La Costa-one of Carlsbad's premier neighborhoods-this exceptional residence sits on a generous large lot, offering rare privacy, beautifully landscaped grounds, and remarkable versatility for multi-generational living, extended family, guests, home offices, or creative studios. The elegantly updated main home features 5 bedrooms and 3 bathrooms, graced with new hardwood flooring throughout, a gourmet kitchen appointed with premium stainless steel appliances, custom cabinetry, and French doors that open seamlessly to an expansive entertainer's patio-perfect for sophisticated indoor-outdoor gatherings. Adding extraordinary value are two fully permitted bonus living spaces. Each is thoughtfully attached yet independently accessible with their own private entrances, kitchens, bathrooms, and comfortable 1-bedroom layouts-ideal for in-laws, adult children, long-term guests, a private office, gym, or any lifestyle need requiring separate, self-contained quarters. The expansive master suite offers a serene sanctuary with generous proportions, abundant natural light, and direct access to a large private patio-an intimate retreat for morning coffee or evening relaxation. This home is designed for effortless entertaining, with seamless flow from indoor spaces to the sprawling outdoor patios and grounds. Located just moments from La Costa's finest restaurants, top-rated schools, pristine beaches, and amazing amenities.