Lozoyuela-Navas-Sieteiglesias

Can you build a house on rustic land?

The Madrid region allows no new houses on rustic land. Restoring an existing or listed building is the way.

Ley 9/2001, art. 29. A town plan can be stricter.

Plan in force: Normas Subsidiarias (an older, simpler 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?

IGME records 4 wells and boreholes in Lozoyuela-Navas-Sieteiglesias. Half of the 4 with a depth found water at 5–6 m.

Ground: 96% practically impermeable.

Choosing where to drill takes a hydrogeologist.

What to watch for

• One fire since 2016 reached the municipality: 862 ha, in 2026.
• No mapped flood zone (only studied rivers are mapped).
• Radon zone II: new and restored homes need radon protection by law.

Living here

• 4G reaches 100% of homes; fibre 58%. Averages for the municipality.
• Rain: 537 mm a year (1971–2000), about 496 by 2041–2070.
• Summer highs: 27.6 °C, about 31.7 °C by 2041–2070.
• Frost days: 78 a year, about 52 by 2041–2070.

Around it

Puentes Viejas · Garganta de los Montes · La Cabrera · El Berrueco · Valdemanco · Buitrago del Lozoya