** BACK ON MARKET AT NO FAULT OF SELLERS ** 2 Bed / 2 Bath Casita | Pool & Spa | Usable Land & So much opportunity.... Experience the best of Temecula Wine Country living at 36350 Calle Poco... An expansive, infrastructure-rich estate offering privacy, flexibility, and exceptional multi-generational potential just 1 mile from the Rancho California Wine Trail. Spanning approximately 4,166 square feet, this upgraded 6 bedroom, 5.5 bath property blends rural charm with modern systems and long-term functionality. The main residence offers 3,198 square feet across two levels, while the renovated lower sub-level (968 sq ft) transforms a former walk out basement and garage into two private guest suites with en-suite baths, plus a laundry room and half bath. While one guest suite features commercial-grade sound-dampening and each includes its own energy-efficiant mini-split system, this home is ideal for extended family or income potential. Set on 3.33 acres, this private, fenced and gated lot includes a secure rear pad and offers an abundance of near-flat useable land, designed for flexibility and expansion. Outdoor features include a saltwater pool, a newer Hot Springs 7-person Spa, outdoor hot/cold shower, mature landscaping, pool safety fencing, and a large Alumawood-covered patio area. Storage shed, three RV hookups (50-amp electric, water, septic and CAT5/WIFI connections), and a large flat rear buildable area ideal for a future garage, workshop, ADU, guest house, pickleball court, or additional RV parking. 2 Tesla EV chargers and parking for 20+ vehicles accommodate large gatherings with ease. Extensive upgrades include 400-amp electrical service, dual septic systems (2018 & 2020, sized for future expansion), two tankless water heaters, dual-zone HVAC with 2 new AC units,1 new furnace and all new ductwork, reverse osmosis system, updated staircase to code, safety balcony glass, partial roof tile reset, and interior/exterior repaint. Improvements completed between 2018–2025. Whether seeking a private retreat or multi-generational compound with income potential, 36350 Calle Poco presents a rare turnkey opportunity in one of Temecula's most desirable locations.