Buying a New Apartment in Sofia: When to Bring in an Interior Designer Before Act 16

If you are buying a new apartment in Sofia from a developer, especially from abroad, one of the most useful decisions you can make is also one of the earliest: when to involve an interior design studio. The short answer is before the finishing works start, and ideally while the building is still moving through its construction stages, before Act 16. Here is why timing matters so much, what to decide first, and how the process works when you are not in the country.

What Act 16 means for you as a buyer

New buildings in Bulgaria are signed off in stages, and buyers will hear the terms Act 14, Act 15 and Act 16 from developers and agents. Act 16 is the commonly used name for the final sign-off that allows the building to be put into use. Many new apartments are handed over in a basic state, often with plastered walls and screed but without finished floors, bathrooms, doors or fixtures, so the owner completes the interior. Handover conditions differ from one developer to another, so confirm yours in the sales contract and with your lawyer. This article is general guidance about the design side of the process, not legal advice.

Why the design decisions come first

While walls and floors are still open, deciding where things go is simple. Once plaster, screed and tiles are in, every change turns into demolition and repair, with the extra cost and delay that come with it. These are the decisions that should be made on paper first:

• Positions of sockets, switches, lighting circuits and data points, based on where furniture will actually stand
• Plumbing for the bathrooms, kitchen and laundry: taps, drains, shower, washing machine
• Heating and cooling: air conditioning units, underfloor heating, a heat pump with its indoor unit, the boiler
• Interior partition walls: opening or closing doorways, joining or splitting rooms
• Ceilings and storage: ceiling levels for lighting, curtain boxes, built-in wardrobes and niches

A note on walls: structural walls cannot be moved. Many interior partition walls in new buildings are not structural, but always ask the developer and the building's architect what is allowed before you plan any change, and until which stage changes are accepted.

Common mistakes new-apartment buyers make

• Accepting the standard layout of sockets and fixtures. A standard plan is drawn for an average apartment, not for how you live. A bed, a desk or a kitchen island that lands on the wrong wall is hard to fix later.
• Buying furniture and appliances before the layout is final. Sizes decide where sockets, water points and extraction go. Choosing them after the walls are finished means compromises.
• Hiring tradespeople first and design second. Without drawings, every decision is made on site, quickly, by whoever is available. Drawings let you compare quotes on equal terms.
• Waiting for the keys. The most flexible time to change a layout is before the finishing works, and that is often before the apartment is formally handed over.

Questions to ask the developer before you plan

1. In what state will the apartment be handed over, and what exactly is included?
2. Which changes to the layout, partition walls and installations are accepted, and until which stage of construction?
3. Can the developer share the floor plan and the technical plans for electrical and plumbing installations?
4. Are heating and cooling prepared in the apartment, or does the owner install them?
5. Can the owner or their designer visit the site, and when?

A simple timeline for foreign buyers

1. Before or right after signing, get the developer's floor plan and ask what the handover state includes.
2. Start the layout and concept straight away, so the designer can test furniture layouts and propose changes while they are still possible.
3. Approve 3D visualizations, so you see the result before anything is built.
4. Receive technical drawings for electrical, plumbing, lighting and ceilings that you can hand to the trades.
5. Decide how to execute: with your own contractors, or turnkey.

Why this matters even more when you live abroad

If you cannot be on site, every decision that is not on paper becomes a phone call, a photo and a guess. A complete set of drawings and approved visualizations replaces most of those calls. You see the result in advance, the tradespeople work from the same documents, and the only questions left for the site are execution questions, not design questions.

How COZY. works with buyers abroad

COZY. is an interior design studio in Sofia, founded in 2019 by Geya Antonova. Interior design projects and consultations are available for all of Bulgaria and can run fully online, so you can start planning while you are still abroad. A project covers the concept, 3D visualizations, technical drawings, a budget and supplier coordination. Turnkey execution is carried out in Sofia, where the studio manages contractors, deliveries and inspections on site, so the owner does not need to be in the country.

COZY. works in the upper-middle to upper end of the interior design market, and its rates reflect the on-site experience and technical precision behind every project. Its portfolio includes private homes, the Silver Court retail chain, the VivaDental clinic and offices for Hyperzon, Evolution and Smartico.

Frequently asked questions

Can I start the interior design before the building receives Act 16? Yes, and it is usually the best moment, because the layout, installations and partition walls can still be discussed with the developer. Always confirm with the developer which changes are accepted and until when.

Do I need to be in Bulgaria to start? No. The layout, concept, visualizations and technical drawings can all be prepared online. A site visit helps, but it is not required to begin.

Does the studio also manage the construction? In Sofia, yes: COZY. offers turnkey execution there. For apartments elsewhere in Bulgaria, the studio provides the design and consultations, and you work with your own contractors using the drawings.

If you are buying a new apartment in Sofia and want the interior decided before the finishing works begin, a design consultation at this early stage is usually the most valuable one. More information is available at cozydesign.bg.