gardmi 🇪🇸 Garden site planner
Septic tank / treatment unit
Sanitation facility

Septic tank placement rules

Spain · Auxiliary · usually permanent

A septic tank is typically placed about 5–6 m from the dwelling and around 30 m from any drinking-water well (recommended figures), should keep a protective distance from the neighbour's boundary, and its discharge requires administrative authorization under the Water Law.

Use in planner All objects

Placement rules

One of the most important objects in a site plan: it affects the house, well, boundary and service access.

Sanitary zone

Sanitary protection distances to wells, drinking water and dwellings.

Septic tank distances
Distance to drinking-water well At least ~30 m (recommended) Septic tank distances: ~5–6 m to dwelling, ~30 m to potable water well (recommended)
Distance to dwelling About 5–6 m (recommended) Septic tank distances: ~5–6 m to dwelling, ~30 m to potable water well (recommended)
Discharge of treated water Requires administrative authorization (Water Law RDL 1/2001) Septic / wastewater discharge regulated by Water Law (RDL 1/2001), requires administrative authorization

Important limitation

The catalog is a planning aid, not a legal opinion. Before construction, check the land plot category, local land-use and development rules, easements, utility protection zones and neighbour buildings.

Sources

The editor will use the same source-backed passport for short in-canvas hints.

Other objects

Compare nearby planning objects before fixing the site layout.

Garden shed Garden shed Outbuilding Greenhouse Greenhouse Garden structure Swimming pool Swimming pool Garden structure