Classified eighteenth-century stone in the UNESCO perimeter comes with Architecte des Bâtiments de France constraints on facades, windows and roofs — a cheap renovation quote is usually a quote for the wrong works.
A decade of tax-incentive new-build left an identifiable stock of small investor flats in Bègles, Bassins à Flot and the Bastide. They rent, but they compete with each other. Bordeaux applies encadrement des loyers and runs a low-emission zone.
The Garonne floodplain is mapped. Ask for the Plan de Prévention des Risques before you treat riverside frontage as free upside.