Isaba / Izaba

Can you build a house on rustic land?

Navarre allows a new house on rustic land only where the town plan provides for it, on at least 1 ha.

DFL 1/2017, art. 115. A town plan can be stricter.

Plan in force: Plan General (a full town plan), from 2018. The region's planning viewer ↗

The SIU does not map land classes here: the town plan is the source.

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

Is there water?

No well or borehole is recorded in Isaba / Izaba. That is not proof there is no water: ask local drillers. 36 springs are recorded.

Ground: 64% practically impermeable; 20% karstic or fissured aquifer, medium productivity; 7.7% karstic or fissured aquifer, high productivity; 5.6% porous aquifer, high productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• 4 fires since 2016 reached the municipality: 70 ha in all, the latest in 2026.
• No mapped flood zone (only studied rivers are mapped).
• 57% of the municipality is Natura 2000: new works need the region's consent.
• 23% of the municipality is a protected natural area, whose plan limits what can be done.
• Not a radon zone.

Living here

• 4G reaches 100% of homes; fibre 94%. Averages for the municipality.
• Rain: 1,494 mm a year (1971–2000), about 1,302 by 2041–2070.
• Summer highs: 21 °C, about 24.6 °C by 2041–2070.
• Frost days: 104 a year, about 70 by 2041–2070.

Around it

Uztárroz / Uztarroze · Urzainqui / Urzainki · Roncal / Erronkari · Garde · Ansó