Ayamonte

Can you build a house on rustic land?

Andalucía requires at least 2.5 ha for a new house on rustic land.

Other cases: 5 ha on forest land.

Decreto 550/2022, art. 31. A town plan can be stricter.

Plan in force: Normas Subsidiarias (an older, simpler plan), from 1995. The region's planning viewer ↗

The national urban information system (SIU) maps the land class for 98% of the municipality.

Only the town hall can confirm it, in writing: ask for a certificado urbanístico.

Is there water?

IGME records 86 wells and boreholes in Ayamonte. Half of the 77 with a depth found water at 8–78 m.

Ground: 47% practically impermeable; 24% low permeability, local groundwater only; 18% porous aquifer, medium productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• 5 fires since 2016 reached the municipality: 195 ha in all, the latest in 2026.
• 21% of the municipality lies in the 100-year flood zone; 21% in the 500-year one.
• 13% of the municipality is preferential flow zone, where new building is generally banned.
• 23% of the municipality is Natura 2000: new works need the region's consent.
• 9.4% of the municipality is a protected natural area, whose plan limits what can be done.
• Radon zone I: new and restored homes need radon protection by law.
• Basic seismic acceleration 0.14 g: new buildings need seismic design.

Living here

• 4G reaches 100% of homes; fibre 95%. Averages for the municipality.
• Rain: 469 mm a year (1971–2000), about 397 by 2041–2070.
• Summer highs: 31.6 °C, about 34.1 °C by 2041–2070.
• Frost days: 1 a year, about 0 by 2041–2070.

Around it

Villablanca · Isla Cristina · San Silvestre de Guzmán · Lepe · Sanlúcar de Guadiana · Cartaya