I want to split my plot in two — how much has to be left in each
A large family plot or a former industrial parcel tempts an owner to split it into several smaller ones and sell or build on them separately. How many plots actually result rarely comes down to arithmetic — it's decided by a single parameter written into the local plan, one most sellers don't know about until they file a subdivision application.
Minimum area for a newly subdivided plot
A local plan for single-family residential zoning usually sets a minimum area every newly subdivided building plot must have — in practice most often somewhere between 600 and 1,500 m², depending on the municipality and the specific zone. A subdivision creating a plot smaller than that threshold won't be approved, no matter how large the original plot is.
An 1,800 m² plot in a zone with a 900 m² minimum splits neatly into two compliant plots. The same plot in a zone with a 1,200 m² minimum no longer splits into two equal halves — one of them would have to fall below the threshold, which isn't allowed.
It's not only about area
- Every newly subdivided plot must have guaranteed legal access to a public road — a subdivision that leaves one of the resulting plots without access won't be approved unless an internal access road or right of way is created at the same time.
- The shape and frontage width of a new plot usually need to allow development compliant with the plan's other parameters — a plot that's large enough but very narrow is often rejected at the subdivision-design stage.
- If the plot isn't covered by a local plan, subdivision follows different general rules — compliance with a zoning-conditions decision, if one was issued, plays the role the plan would otherwise play.
Why check this before, not after, buying
The price of a plot advertised as 'suitable for subdivision' usually assumes a specific number of resulting smaller plots. If the plan's minimum area doesn't allow that, the whole investment's economics change — sometimes enough that the purchase stops making sense once recalculated against the number of plots actually achievable, rather than the one in the listing.
Frequently asked questions
No — every planning zone in a local plan can carry its own value for this parameter, so the same municipality can have different thresholds in different parts, depending on the character of the development.
Formally, the threshold is a hard limit — the authority approving the subdivision has no discretion to accept a plot below the set minimum, even by a small margin.
The general plan sets municipal urban-planning standards in a different scope (intensity, height, biologically active area, among others) — the specific subdivision threshold typically comes from the local plan or, in its absence, from a zoning-conditions decision covering the subdivision.
Check the plan's parameters before deciding on a split
The parcel report shows the parameters from the local plan in force for a chosen parcel, including the minimum area for a newly subdivided plot where the plan specifies one.