aux prompt rear extension replacement render create a photorealistic architectural visualisation using the supplied rear elevation photograph as the base image retain the existing victorian townhouse exactly as shown including existing brickwork fa ade existing sash windows existing stone window surrounds and architectural detailing existing roofline and upper floors existing neighbouring properties existing garden layout and boundary conditions where visible extension replacement completely remove the existing white conservatory single storey rear extension and replace it with a contemporary glazed garden room matching the supplied design reference the new extension should feature symmetrical gable ended form full width glazed front elevation minimalist anthracite grey aluminium frame system ral 7016 deep anthracite grey aluminium clad perimeter frame wrapping the roof and side elevations contemporary architectural appearance with crisp clean detailing slim aluminium mullions and transoms large format glazing panels front elevation full height sliding glass doors spanning the majority of the extension width anthracite grey aluminium sliding door system narrow sightlines central vertical structural mullion aligned with the apex above floor to ceiling glazing to maximise transparency roof design pitched gable roof matching the reference image feature glazed apex panel beneath the ridge large rooflight integrated into the roof plane behind the front gable glazing slim anthracite grey aluminium framing around all roof glazing clean contemporary roof detailing with concealed drainage where possible materials main house existing brickwork retained exactly as existing existing windows retained exactly as existing new extension anthracite grey powder coated aluminium cladding and framing ral 7016 high performance clear architectural glazing minimal visible frame thickness premium contemporary residential finish architectural intent the extension should feel modern yet respectful to the victorian building lightweight and highly glazed high end residential architecture elegant and understated similar to contemporary uk architect designed rear extensions rendering style ultra photorealistic architectural photography quality realistic glazing reflections accurate material textures natural daylight soft realistic shadows high detail premium residential visualisation real world construction proportions camera composition match the exact camera position and perspective of the original photograph maintain the same garden viewpoint preserve the relationship between the extension and existing house ensure the extension sits naturally against the retained victorian brick fa ade important constraints do not alter the existing victorian house do not change the brickwork upper storey windows or neighbouring buildings only replace the existing single storey conservatory structure maintain realistic construction detailing and proportions extension must match the supplied reference design with anthracite grey aluminium framing glazed apex sliding doors and integrated rooflight
