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Looks Before you build

The most useful brief lists behaviour rather than style. How many people eat outside on a Friday night, whether you swim in April, whether you work from a room that needs cool white light at nine in the morning, how many vehicles charge overnight, whether deliveries arrive while the house is empty. Each of those answers changes geometry, and geometry is far harder to change later than a colour.

Once behaviour is documented, style becomes a set of constraints instead of a mood board. Curved sculptural volumes suit a household that wants one dramatic gesture and calm interiors; stacked horizontal planes suit a sloping site and a household that wants terraces at several levels. Both can carry the same neon and LED language, but they are not interchangeable once the structure is engineered.

Three things have moved from experimental to ordinary in the last few years. Digital fabrication has removed most of the cost penalty on curves, so sprayed shells and formed panels now appear on suburban blocks rather than only on cliff-top budgets. Addressable LED has become cheap and reliable enough to be specified as a building element rather than a novelty. And energy hardware — rooftop solar, a wall battery, a bidirectional charger — has become a normal part of a residential electrical design rather than an add-on.

The consequence is that a custom home now has an energy plan as detailed as its floor plan. Panel area, battery capacity, inverter location, cable runs to the garage and the pool plant, and the switchboard space needed for future upgrades all belong on the drawings. Retrofitting any of it is expensive, and in a home designed to glow it is the difference between a spectacular electricity bill and a house that largely runs itself on what its own roof collects.

Environmentally conscious specification has stopped being a compromise. Low-carbon concrete blends with supplementary cementitious materials, mass timber and cross-laminated panels, recycled aluminium framing, hempcrete and rammed earth walls, recycled-content glass and reclaimed hardwood all now have real supply chains. Each one also brings a look: mass timber gives warm ribbed ceilings that take cove lighting beautifully, rammed earth gives a striated wall that grazing light turns into geology.

Durability is the quiet part of sustainability. A finish that lasts thirty years beats a recycled finish that fails in five, particularly on coastal or high-UV sites. Marine-grade stainless fixings, powder-coated aluminium with a proper warranty, sealed concrete and porcelain rather than soft stone in wet zones — these choices keep the embodied carbon of the first build from being spent again on repairs.

Prefabrication is reshaping how custom homes are delivered. Bathroom pods, factory-built wall cassettes, pre-wired service spines and modular pool shells arrive with tolerances a site crew cannot match, and they compress the weather-exposed part of a build dramatically. For a home full of concealed lighting details, factory accuracy is not a luxury; a shadow gap that varies by ten millimetres along a wall reads as a mistake from thirty metres away.

Sequence discipline protects the design. Coves, shadow gaps, step nosings, pool niches, conduit for garden lighting, chases for a future charger and the framing for a parcel hatch all have to be set out at frame stage. Every one of them costs a fraction of its retrofit price if it appears on the plans, and none of them look as crisp when they are cut into finished work.

Vehicle charging has become a planning question rather than an electrical one. Two charger positions, generous conduit, load management so the house does not trip when the car, the pool heat pump and the oven all draw at once, and a driveway lit for safe night arrival is the baseline. Bidirectional charging then turns the car into household storage, which is why the cable route between the garage and the switchboard deserves the same attention as a plumbing riser.

Control belongs on the phone but never only on the phone. Scenes for evening, entertaining, work and away should be few and named, with a physical switch on every circuit so the house remains usable when the network drops or a guest arrives. The same platform can hold irrigation by soil moisture, motorised shading tracking the sun, pool chemistry and camera access, which is where automation genuinely improves comfort rather than adding chores.

Delivery is the newest piece of residential planning. A clear four-by-four metre landing zone with a lit perimeter, no overhead branches and a hard, drained surface makes drone drop-off possible; a lockable, insulated parcel hatch through a garage or utility wall makes it useful, and a chilled compartment turns a food delivery into something you can collect an hour later. Designing these into the custom brief now costs almost nothing and saves a retrofit that will be awkward on nearly every house built before this decade.