Castejón de Sos

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 2002. 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 Castejón de Sos. That is not proof there is no water: ask local drillers. One spring is recorded.

Ground: 39% low permeability, local groundwater only; 31% porous aquifer, medium productivity; 14% practically impermeable; 12% karstic or fissured aquifer, medium productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• One fire since 2016 reached the municipality: 37 ha, in 2021.
• 2.7% of the municipality lies in the 100-year flood zone; 2.7% in the 500-year one.
• 2.7% of the municipality is preferential flow zone, where new building is generally banned.
• 14% of the municipality is Natura 2000: new works need the region's consent.
• Radon zone II: new and restored homes need radon protection by law.

Living here

• 4G reaches 100% of homes; fibre 80%. Averages for the municipality.
• Rain: 971 mm a year (1971–2000), about 893 by 2041–2070.
• Summer highs: 22.4 °C, about 26 °C by 2041–2070.
• Frost days: 153 a year, about 115 by 2041–2070.

Around it

Chía · Sesué · Villanova · Bisaurri · Seira · Sahún · Laspaúles · Benasque