A bold reinvention of a classic workers' cottage, this striking Windsor residence - known affectionately as GTMadhouse and published in The Local Project - has been meticulously designed by Brisbane architecture studio Maytree Studios and brought to life by Petro Builders. The home celebrates light, volume and connection to its surroundings, blending preserved heritage character with a confident contemporary extension.Positioned on an elevated east-facing four hundred five square meter parcel, the home captures morning sun, cooling breezes and a peaceful outlook across a tightly held Windsor streetscape, just moments from Downey Park and the vibrant village lifestyle of the inner north.The ArchitectureThe renovation carefully preserves the charm of the original cottage while introducing a contemporary split-level addition that expands the home without compromising the outdoor garden and pool area.The restored cottage now forms a dedicated bedroom and rumpus wing, while the new architectural addition introduces a dramatic central living zone. Here, a sunken lounge and open-plan kitchen anchor the home, opening directly to the outdoor entertaining spaces and landscaped garden.A striking double-height void draws natural light deep into the plan, creating a sense of openness while maintaining intimate zones throughout. Above the living area sits a private master retreat, thoughtfully positioned to provide quiet separation from the social heart of the home.The result is a residence that flows effortlessly between levels, where every space has been carefully considered to balance architectural expression with everyday functionality.Design & Features:- Layered materials, bespoke detailing and refined finishes create a home that feels both distinctive and deeply liveable.- Architectural renovation by Maytree Studios, built by Petro Builders- Restored workers' cottage combined with contemporary split-level extension- Dramatic double-height living space and sunken lounge- Custom joinery and expressive interior detailing throughout- Layered material palette including concrete, timber and textured finishes- Handmade Popham Design splashback tiles, crafted in Morocco- Integrated Fisher & Paykel appliances with Zip tap- Astra Walker tapware throughout the home- Generous inground pool with sustainably sourced ironbark decking and built-in seating- Elevated four hundred five square meter east-facing block capturing natural light and breezesSustainability:- Sustainability and comfort were central to the design approach - Passive solar principles with north-eastern orientation and extended eaves - Cross ventilation throughout the home - eleven kilowatt rooftop solar array with twelve point six kilowatt hour battery storage - Native-planted green roof improving thermal performance and streetscape amenity Location:Windsor remains one of Brisbane's most desirable inner-north suburbs, prized for its proximity to the CBD, hospitals and vibrant café culture.From this address you enjoy:- Direct access to Downey Park and the Kedron Brook bikeway network - Minutes to Wilston Village cafés, restaurants and boutique shopping - Easy access to Brisbane CBD and Royal Brisbane & Women's Hospital - Excellent public transport connections - Close proximity to Airport Linkand major arterial roads - School catchments for Windsor State Schooland Fortitude Valley Secondary College Architectural homes of this calibre rarely come to market. Blending heritage charm with bold contemporary design, fifty-one Green Terrace presents a truly distinctive residenceand arare opportunityto securea thoughtfully designedhomeinoneofBrisbane'smost sought-after lifestyle pockets.