Stunning East Simi Valley Estate located at the end of a culdesac, backing open space and sitting on a sprawling approximately 25,000 Sq Ft. Lot. This elegant Silverthorne home contains 5 bedrooms (one bedroom down) 4 bathrooms and over 4300 square feet of open living space. As you approach the home you will find beautiful curb appeal with mature palm trees, exterior lighting, private front sitting area, and gorgeous hardscapes with room for additional parking as well as HUGE Gated RV access. Upon entry you will notice the high ceilings and natural light entering the home as well as the spectacular custom railings and tile staircase. Near the entry you will find the guest bedroom and a full bath with a shower over tub set up and attractive stone tile from bath to ceiling. Down the entry corridor you will find the spacious formal living room with crown moldings, and extenuated by the attractive fireplace with large white mantle. Across from the Formal living is the formal dining room which fits a large table, has crown molding and contains a niche area for a serving space. This leads to the expansive chefs kitchen with maple cabinets, granite countertops with backsplash, stainless steel appliances including gas cooktop with range, built in microwave and double ovens. Large island and breakfast bar, a breakfast nook with space for a table and a roomy walk in pantry! The kitchen is open to the family room which features a fireplace, tons of natural and recessed lighting surround sound speakers, along with multiple doors to access your entertainers dream yard! Upstairs contains 3 nice sized secondary rooms all featuring ceiling fans with two of the bedrooms having a jack and jill set up with private sinks. You will also find an additional living space upstairs with ceiling fan and recessed lighting. Huge Primary retreat has travertine flooring, a sitting area with fireplace and built in book shelves, access to balcony and an en suite bath. The grand bathroom has dual vanities, large walk in closet, a soaking tub and separate shower stall. Additionally, upstairs is a walkway to a private study/ studio. Extremely Private Resort like backyard has a built in barbecue, gated pool and spa with '' beach entry'', a firepit, loads of sitting areas, mature trees and landscaping, exterior lighting covered patio area, along with very large grassy area and MORE!