Permit stage 14, 15, and 16: what they mean for buyers of new construction in Sofia

If you've been looking at new construction in Sofia, you've probably heard sellers or brokers mention "Permit stage 14," "15," or "16" as if everyone knows what they mean. In practice, these are three specific legal steps that every new building must go through before it can officially be lived in — and they're exactly what determines whether the property you like is actually finished, safe, and legally clear, or still "on paper."

Permit stage 14 is the first step. It's issued when the building reaches what's known as the "shell and core" stage — meaning the load-bearing structure (foundation, walls, slabs, roof) is fully complete. By signing it, the construction supervisor, the designer, and the builder confirm that the structure matches the approved design and meets safety requirements. At this stage the building still has no finishing work — this is the point where developers usually say "the property is at shell-and-core stage."

The next step is Permit stage 15. It's issued once all finishing work is complete — plastering, installations, windows and doors, insulation, common areas. This permit confirms that construction is effectively finished and is being handed over from the builder to the developer. It's important to know that Permit stage 15 cannot be issued without a preceding Permit stage 14 — each document builds on the previous one rather than replacing it.

The final and most important step for the buyer is the building's final legalization. For most residential buildings in Sofia, which fall under the fourth or fifth construction category, this is a Certificate of Occupancy, issued by the chief architect of Sofia Municipality or the relevant district. For larger, more complex buildings (first to third category), the final document is a use permit issued by the National Construction Control Directorate (DNSK), based on a Form 16 protocol drawn up by a state acceptance commission — which is where the colloquial term "Act 16" comes from, used by people to refer to either type of document regardless of which exact procedure applies. In both cases the meaning is the same: without this document, the building isn't officially legalized for habitation, and its use before that point is prohibited by law.

Why does this matter to you as a buyer? First, safety. The absence of final legalization is often a sign that there are unresolved issues, delays, or discrepancies with the design in the building's paperwork. Second, practical problems: without an issued Certificate of Occupancy, it's difficult to get a mortgage secured by the property, difficult to arrange insurance, and connections to electricity, water, and heating are often only temporary. Third, liquidity: a property without legalization is much harder to resell, because most buyers (and almost all banks) want to see a finished, accepted building before they pay or lend against it.

For a quick reference, here's the sequence in brief: Permit stage 14 confirms a sound structure once the shell and core is complete, Permit stage 15 confirms finished interior work and handover of the building from builder to developer, and the Certificate of Occupancy (or use permit for larger buildings) is the final document that makes the building legally fit for habitation. Each follows the one before it in order — there's no shortcut that skips a step.

So before signing a preliminary contract for a property under construction, it's worth asking for written information on exactly what stage the construction has reached — Permit stage 14, 15, or an already-issued Certificate of Occupancy. Good practice is to tie payments to the developer to actual construction progress, rather than paying the full amount upfront. Consulting a lawyer who knows Bulgaria's Spatial Development Act and the practice of the specific municipality is one of the best investments you can make before signing anything.

At New Key Properties, we always check what legalization stage a property under construction has reached before we offer it to you — because for us, honesty toward the client isn't just a good intention, it's how we work. If you're looking at new construction in Sofia and want someone to check the paperwork on a specific property for you, call 0879 826 292 for a free consultation.