Fifteen minutes from Seville lies the estate of Spanish singer and TV presenter Bertin Osborne - the Hacienda San Jose. It was once an old mill. Today it's an Andalusian cortijo, a country estate with a stately look that has nonetheless kept its rustic soul. Osborne bought it more than 30 years ago and made it the centre of family life: his daughters Alejandra, Eugenia and Claudia come back here whenever their schedules allow, to escape the pace of the city.

Six buildings, 50 hectares and olive groves

The estate covers 50 hectares, 8 of them olive groves, and the built area is over 2,000 square metres. There are also storerooms, henhouses, stables, a chapel and a wine cellar. The house isn't one building but six, linked by inner Andalusian courtyards. The courtyards are the backbone of the whole property: light and ventilation flow through them, and the walls are covered in climbing plants and bougainvillea that add colour and create shade - a small microclimate in every corner.

Architecture that keeps the heat out

In a city whose summers are among the hottest in Europe, the cortijo defends itself with tools older than any air conditioner: whitewashed walls, high ceilings and cool materials - terracotta and stone. What architects today call passive design, the old builders around the Mediterranean and the Balkans knew without needing a term for it. A thick wall, a high ceiling, shade in the courtyard. How many of our new flats would pass that test in July?

An interior made for gatherings

The indoor rooms, like the outdoor ones, are designed for get-togethers and celebrations. The dining room stands out, with a wine cellar, a wine display cabinet and an open kitchen, arranged so that every space connects into one open view and everything is close at hand. Wood is everywhere - beams, furniture, surfaces - and gives the rooms warmth. One of the living rooms houses a games room, with a billiard table displayed almost like a sculpture.

The real treasure, though, is outside: the pool among the olive trees and several open-air lounges built for the Andalusian climate. The story this house tells isn't about luxury but about coming back. An estate bought three decades ago that wasn't knocked down and rebuilt but reshaped over time - and a place the kids still want to come to. That, in the end, is the only measure of a family home that really counts.