Big family plans deserve a home with this much room. Welcome to 123 Hidden Trail Ave in prestigious Mill Pond in Richmond Hill-an extensively renovated 4+1 bedroom & 6-bathroom residence with 3,598 sq ft above grade plus a beautifully finished basement [2022]. The grand entrance with 17-ft cathedral-ceilings & new custom entry door sets the tone for spacious interiors! Nestled on a South-West side lot, this sun-filled home features engineered hardwood on the 1st & 2nd floors; pot lights; custom bathrooms; smooth ceilings; automated blinds; modern chef's kitchen with full-height cabinetry, pantry, pull-out organizers, a waterfall island/breakfast bar, quartz & quartzite countertops & a gas cooktop with pot filler; elegant dining area with built-in cabinetry; stylish sunken formal living room with 9 ft ceilings; main-floor office; direct garage access! Offers 4 spacious & bright bedrooms & 3 full baths finished with custom cabinetry & quartz countertops! The primary 6-pc ensuite pairs a freestanding tub with a natural-stone double vanity & an oversized frameless glass shower. Downstairs, you'll find bright entertainment space, egress windows, ample storage, spacious guest suite with a walk-in closet and 4-pc ensuite bath, and a separate 2-pc powder room that serves the recreation area. Enjoy summer living on the expansive two-tier composite deck in the south-facing backyard. Bonus: Includes pre-paid professional 3D design package, showcasing future pool and walk-up basement potential (subject to approvals). Professionally landscaped w/interlock & stone walkways. Newer equipment: furnace & heat pump [2024]; windows [2018]; R60 attic insulation [2024]; 200-amp service; roof shingles [2018]; a video doorbell; an extra-height 2-car garage with new doors & smart openers. Borders onto a small & quiet elementary school that feeds into the number one ranked high school in the province. Desirable neighborhood, just steps to Yonge St!