Rustic land in Spain, municipality by municipality › Huesca
Jaca
Huesca · Aragón · 407 km²
What rustic land in Jaca allows and holds, for the municipality as a whole. For a particular plot, open it in the map: the report answers for that exact point.
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 1996. 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 Jaca. That is not proof there is no water: ask local drillers. 14 springs are recorded.
Ground: 59% low permeability, local groundwater only; 23% practically impermeable; 8.1% porous aquifer, medium productivity; 8.1% porous aquifer, high productivity.
Choosing where to drill takes a hydrogeologist.
What to watch for
- 3 fires since 2016 reached the municipality: 18,419 ha in all, the latest in 2026.
- No mapped flood zone (only studied rivers are mapped).
- 37% of the municipality is Natura 2000: new works need the region's consent.
- 16% of the municipality is a protected natural area, whose plan limits what can be done.
- Radon zone II: new and restored homes need radon protection by law.
Living here
- 4G reaches 100% of homes; fibre 90%. Averages for the municipality.
- Rain: 764 mm a year (1971–2000), about 676 by 2041–2070.
- Summer highs: 26.2 °C, about 30.2 °C by 2041–2070.
- Frost days: 93 a year, about 63 by 2041–2070.
Around it
Castiello de Jaca · Santa Cruz de la Serós · Santa Cilia · Caldearenas · Sabiñánigo · Villanúa · Aisa · Borau
From IGME, MITECO, SNCZI, EFFIS, the SIU, the Building Code, NCSE-02, SETID and AdapteCCa; summarised 9 October 2026. Information, not a certificate: the town hall has the final word.