Alcázar de San Juan

Can you build a house on rustic land?

Castilla-La Mancha requires at least 1.5 ha for a new house on rustic land.

Other cases: 3 ha on protected rustic land.

Orden 4/2020, art. 5. A town plan can be stricter.

Plan in force: Plan General (a full town plan), from 1992. 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 240 wells and boreholes in Alcázar de San Juan. Half of the 231 with a depth found water at 24–96 m.

Ground: 39% karstic or fissured aquifer, high productivity; 28% porous aquifer, high productivity; 13% practically impermeable; 9.3% karstic or fissured aquifer, medium productivity; 8.8% porous aquifer, medium productivity.

Choosing where to drill takes a hydrogeologist.

What to watch for

• 2 fires since 2016 reached the municipality: 54 ha in all, the latest in 2025.
• 15% of the municipality lies in the 100-year flood zone; 16% in the 500-year one.
• 4.2% of the municipality is preferential flow zone, where new building is generally banned.
• 8.8% of the municipality is Natura 2000: new works need the region's consent.
• 1.9% 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 100%. Averages for the municipality.
• Rain: 308 mm a year (1971–2000), about 284 by 2041–2070.
• Summer highs: 32.9 °C, about 36.9 °C by 2041–2070.
• Frost days: 54 a year, about 32 by 2041–2070.

Around it

Herencia · Campo de Criptana · Llanos del Caudillo · Villafranca de los Caballeros · Quero · Argamasilla de Alba · Manzanares