One of the country’s fastest-growing interior design firms is launching an architecture service built on a single premise: the building and the life inside it should be designed by the same hand.

In a finished home somewhere on the Lekki corridor, an air conditioning unit hums directly in front of a window.

Above it, a ceiling recess sits empty, built for a curtain that can never be hung, because there is now nowhere for the curtain to fall.

A few rooms away, a structural column stands in the dead centre of the kitchen, swallowing a full run of cabinetry that appeared on no plan. None of it was anyone’s fault, exactly. It was simply the predictable result of a building designed by one firm and furnished by another, years apart, neither in conversation with the other.

For more than a decade, La Maison Douillet (LMD) has been the firm that arrives second.