Ayala / Aiara

Can you build a house on rustic land?

The Basque Country allows a new house on rustic land only when a farm needs it. Otherwise it has to go in a village, or restore a building.

Ley 2/2006, art. 28. A town plan can be stricter.

Plan in force: Normas Subsidiarias (an older, simpler plan), from 2006. The region's planning viewer ↗

The national urban information system (SIU) maps the land class for 100% of the municipality.

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

Is there water?

No well or borehole is recorded in Ayala / Aiara. That is not proof there is no water: ask local drillers. 38 springs are recorded.

Ground: 61% practically impermeable; 21% low permeability, local groundwater only; 13% karstic or fissured aquifer, high productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• One fire since 2016 reached the municipality: 94 ha, in 2026.
• 0.6% of the municipality lies in the 100-year flood zone; 0.6% in the 500-year one.
• 20% of the municipality is Natura 2000: new works need the region's consent.
• Not a radon zone.

Living here

• 4G reaches 100% of homes; fibre 89%. Averages for the municipality.
• Rain: 932 mm a year (1971–2000), about 783 by 2041–2070.
• Summer highs: 24.2 °C, about 26.9 °C by 2041–2070.
• Frost days: 23 a year, about 10 by 2041–2070.

Around it

Urduña / Orduña · Artziniega · Gordexola · Amurrio · Laudio / Llodio · Okondo · Junta de Villalba de Losa · Valle de Losa