Which Costa del Sol urbanisations sit in the wildfire interface

Spanish fire services use the term interfaz urbano-forestal — the wildland–urban interface. It describes any place where buildings meet unmanaged vegetation. It is not a label for remote countryside; most of the desirable residential coast west of Málaga qualifies.

What puts a property in the interface

• Pine, eucalyptus or dense scrub within roughly 30 metres of the structure
• The house sits above a slope or at the head of a valley — fire accelerates uphill
• One access road, often narrow, shared with the emergency services trying to come in
• Neighbouring plots that are undeveloped or unmaintained
• Timber pergolas, cane screens, thatch, planted terraces and cushions close to the façade

Where this describes the Costa del Sol

The hills behind Marbella, San Pedro and Estepona — Benahavís, La Zagaleta, El Madroñal, Marbella Club Golf Resort, Los Flamingos, Parque Botánico, Istán, Ojén, La Mairena — sit against Sierra Bermeja and Sierra Blanca. Further west, Sotogrande's upper zones and the hillsides towards Casares share the same exposure. East of the city, Mijas, the Axarquía and the slopes above Nerja face it from the other direction. The common factor is not the municipality; it is slope plus fuel plus a single road.

What actually reduces the risk

• Legally required and genuinely maintained clearance around the structure
• Closing entry points for embers: gutters, vents, roof valleys, under-tile gaps
• Removing fine fuel from terraces during high-risk weeks
• Water that can be delivered onto the roof and perimeter before the front arrives, without mains supply or grid power

The first three are maintenance. The fourth is engineering, and it is the part that keeps working when nobody is at the property. We survey homes across Marbella, Benahavís, Estepona and Sotogrande and specify a system sized to the plot, the slope and the approach direction of a likely fire.