Valle de Hecho

Can you build a house on rustic land?

Aragón requires at least 1 ha for a new house on rustic land.

DL 1/2014, art. 34.2. A town plan can be stricter.

Plan in force: Plan General (a full town plan), from 2005. 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 Valle de Hecho. That is not proof there is no water: ask local drillers. 4 springs are recorded.

Ground: 71% practically impermeable; 9% porous aquifer, high productivity; 7.9% low permeability, local groundwater only; 7.3% karstic or fissured aquifer, high productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• One fire since 2016 reached the municipality: 18 ha, in 2025.
• 0.6% of the municipality lies in the 100-year flood zone; 0.6% in the 500-year one.
• 0.6% of the municipality is preferential flow zone, where new building is generally banned.
• 94% of the municipality is Natura 2000: new works need the region's consent.
• 29% of the municipality is a protected natural area, whose plan limits what can be done.
• Not a radon zone.

Living here

• 4G reaches 92% of homes; fibre 61%. Averages for the municipality.
• Rain: 1,172 mm a year (1971–2000), about 1,024 by 2041–2070.
• Summer highs: 23.7 °C, about 27.5 °C by 2041–2070.
• Frost days: 92 a year, about 61 by 2041–2070.

Around it

Aragüés del Puerto · Ansó · Aisa · Puente la Reina de Jaca · Canal de Berdún · Santa Cilia · Jaca