Castejón de Valdejasa

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: Delimitación de Suelo Urbano (only marks the town's edge), from 1987. 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?

IGME records 11 wells and boreholes in Castejón de Valdejasa. Half of the 10 with a depth found water at 10–20 m. 5 springs are recorded.

Ground: 59% low permeability, local groundwater only; 27% practically impermeable; 8.7% porous aquifer, high productivity; 5.4% porous aquifer, medium productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• One fire since 2016 reached the municipality: 6 ha, in 2024.
• No mapped flood zone (only studied rivers are mapped).
• 34% 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 82%. Averages for the municipality.
• Rain: 370 mm a year (1971–2000), about 328 by 2041–2070.
• Summer highs: 29.1 °C, about 33.3 °C by 2041–2070.
• Frost days: 39 a year, about 20 by 2041–2070.

Around it

Sierra de Luna · Tauste · Ejea de los Caballeros · Zuera · Luna · Zaragoza