What Is Chrigat Biniya (Unauthorized Construction) in Israel?

Chrigat Biniya (חריגת בנייה) refers to construction on a property that was never approved under a valid Heter Biniya (building permit) — an extra room, an enclosed balcony, a converted storage space, or any structural change that doesn't match the municipality's approved plans.

Unauthorized construction is extremely common in Israel, especially in older apartments, but it carries real risk: the municipality can order it demolished or fine the owner, and it can complicate or block a mortgage approval, since banks want the property they're lending against to match its legal file.

Why it matters for a buyer: ask your lawyer to compare the property's actual layout against its approved plans at the local planning office before you sign. Unauthorized construction doesn't automatically kill a deal, but it needs to be priced in, disclosed, and — ideally — addressed via a legalization process before closing.

Source: Planning and Building Law 5725-1965