15 Trillium Terrace, Halton Hills, ONL7J 2W8

Welcome to this ULTRA-PRIVATE SECRET GARDEN - A Rare Executive Country Estate Property backing onto Blue Springs Golf Club (Home of PGA Canada) w/ the most stunning yard that will rival any luxury resort. This prestigious all-brick home features open concept living + fully finished basement. It is nestled on a stunning 1. 38-ACRE LOT (including a beautiful side lot for added privacy) in a quiet enclave of distinguished executive homes. There is a sense of space as you enter the grand foyer w/ its 9' ceilings and curved staircase. The heart of this home is the gourmet EI kitchen which overlooks the WO to the stunning yard and living room w/ vaulted ceiling, fireplace and additional WO to the yard. There is a main level office located off the front entrance and convenient main level laundry w/ tub. The upper floor has 3 generous bedrooms (there were 4 - can easily convert back), one being the primary bedroom w/ his/her closets and 5-pc ensuite. The basement features an over-sized 4th bedroom, RI for bathroom, a 2nd office, gym, family room and workshop. The dream yard will take your breath away and includes a pavilion for dining al fresco, heated pool, koi pond w/ waterfall, golf-themed bar, screened-in pergola, extensive hardscaping (2000+ SF of flagstone installed on 3 of concrete for stability) and professional low-maintenance landscaping - the ultimate space for entertaining. Additional features: 3-car garage, parking for 10+ in the driveway, garage entry to home, replaced exterior doors, no rentals, energy efficient gas pool heater (2018), new pool liner and cover (2025), furnace (2017), well pump (2024); water softener, UV system, HWT all owned; all windows replaced and home re-insulated, extensive UG sprinklers (including side lot), 12 x 16 double-sided pine Mennonite-built shed. Peaceful location close to golf, trails, lake, 15 minutes to 401. This is your opportunity to finally make a luxury move to the country. Thank You for showing our listing!

• Inside Ontario's Greenbelt plan area — Protected Countryside

  Greenbelt policy limits new development — confirm permitted uses before planning a build or severance.

  Source: Ontario GeoHub — Greenbelt Designation · as of Sep 2026

Also checked, nothing flagged at this location: conservation-regulated areas, provincially significant wetlands, the Oak Ridges Moraine, the Niagara Escarpment plan, areas of natural and scientific interest, rail corridors, hydro transmission corridors.

Not openly mapped for this area (ask the local conservation authority): flood hazard mapping.

Screened against public government mapping at this home’s location — simplified boundaries, not a survey, an appraisal or a legal determination. Confirm anything that matters with the authority named.