"Perhaps the biggest impact on both the home's ground and first floors is the introduction of large-scale windows to replace the smaller window frames popular 40 years ago when the house was built," says de Luis. "Door apertures were expanded and floor-to-ceiling glazed doors now open onto a new concrete veranda at the front of the home and out to a new wooden veranda at the back."
The larger doors and windows and reconsidered verandas all provide a strong indoor-outdoor feel for the house. In addition, they fulfil the owners' requirements for the living spaces to be flooded with natural light. Skylights, set in a symmetrical grid of four above the dining area, allow even more natural light into the home.
With the removal of walls there naturally comes a removal of wall space, says the architect.
"Spot lights and stretches of wall space were carefully considered so the owners could display their extensive art collection, which includes many large-scale works."
The open-plan interiors also allow the diverse antiques, artworks and furniture to occupy their own immediate spaces avoiding a cramped look when viewed as a collective whole.
"Symmetry is another feature running through the house," says de Luis. "The interior spaces are uniformly set to the left and right of the central stairs, for example, and this sense of balance can be seen even as you approach the residence.
"The relocated front door sits to right of centre, but exterior shutters mask this, visually implying the entrance is still situated in the middle of the home's facade."