Discover a rare, ready-to-build 5,500 sq ft lot at 1003 E Mariposa St, Altadena 91001—perfect for your dream family home in a tranquil, sought-after neighborhood! This flat, rectangular parcel, second from the street with a quiet easement, offers privacy just steps from Lake Ave’s vibrant amenities. Previously a cozy 845 sq ft, 2bd/1ba home with a 2-car detached garage, the land is fully cleared post-fire through Phase 1 & 2 cleanup, primed for construction. Adjacent to St. Mark’s School, an independent Episcopal gem (PK-6) on a 5-acre campus, known for its nurturing environment, low student-teacher ratios (e.g., 15:2 in preschool), and holistic focus on intellect and character. Rebuilding after the Eaton Fire, it remains a community cornerstone, steps from your future doorstep—perfect for young learners. Enjoy Altadena’s charm with parks, hiking trails, and shops nearby, framed by San Gabriel Mountain views. Sold as-is, this blank slate invites you to craft a modern family haven with space for kids to thrive. Buyer to verify all details, including utilities, permits, and school eligibility. Seize this chance to root your family in Altadena’s foothills!