sustainable design exterior shot key transformations needed step like terracing refine the blocky stacked forms into a gradual terraced arrangement that slopes down from the highest point towards the street and waterfront this creates that cascading mountain effect seen in the second picture fa ade treatment replace the plain block fa ades with repetitive vertical modules glazing wooden or metal cladding each module should have full height windows and balcony terrace spaces integration of roof terraces flatten the tops of the stepped volumes and convert them into green roof terraces for residents echoing the second picture curved perimeter instead of sharp straight edges introduce a slightly angled or curved perimeter fa ade making the whole massing appear softer and more organic street level activation ground floor should be transparent or recessed with commercial communal space while upper floors cascade above materiality use a mix of wood cladding glass and green roof landscapes to replace the abstract gray volumes architecture