Strolling through a meadow of sunflowers and olive trees, 77-year-old interior designer/architect Jacques Grange, wearing a pink linen shirt and cotton-gingham trousers, is in his natural habitat. “I created everything here, but I’m lucky. I found this cabana 30 years ago through my friend, Vera Iachia,” says Grange of his restored fisherman’s cottage, perched on the sandy soil amid the pines and dunes in Comporta, Portugal. “I bought it immediately from Vera’s mother.” Over the decades, Grange expanded his retreat, adding and restoring further single-storey cabanas with their typical thatched roofs, and landscaping the grounds with boardwalks and a swimming pool surrounded by wildflowers to blend with the wild, meandering…