Does replacing a flat's flooring need a building notice or permit?

Why flooring is a more sensitive topic in a block of flats than other renovation

In a house, the floor is entirely yours to change as you like. In a block of flats, the floor slab and its covering form part of a shared structure, because impact sound (footsteps, dragged chairs, dropped objects) travels through the slab into the flat below. Removing carpet or a floating floor and replacing it with tile or solid timber can change how much of that sound gets through, even if nothing about the layout changes.

This is why floor replacement sits in a different category to repainting a wall or fitting new kitchen units. The work itself is straightforward, but it touches something the whole building relies on: reasonable quiet between floors. Soviet-era panel buildings and older wooden houses in Kalamaja or Nõmme behave differently here, and it is worth knowing which situation you are in before you order materials.

When telling the apartment association is enough

For most straightforward jobs, a message to the korteriühistu board covering what you plan to do and roughly when is sufficient. This applies when you are replacing like-for-like flooring without altering the floor's structure or its height: swapping worn laminate for new laminate, replacing carpet with vinyl, or refreshing parquet on the same base.

The board mainly wants to know the timing, so they can tell other residents if drilling or hammering is likely, and to confirm the building has no specific house rule about floor coverings in older or listed buildings. Noise hours matter here too: keep loud work to normal daytime hours and avoid Sundays and public holidays if the house rules mention them, since this is a common source of complaints even for permitted work.

• Tell the board what material you are laying and roughly when
• Check the house rules for any existing floor-covering requirement
• Keep drilling and hammering to reasonable daytime hours
• Ask if there is a preferred underlay standard used elsewhere in the building

When you need to contact the building register or the city

Floor replacement moves into permit territory when it changes the structure itself, not just the surface. Raising the floor level significantly, removing a screed layer to install underfloor heating, or altering the build-up in a way that affects the slab's soundproofing performance can count as a change that the building register or the city needs to know about.

This also applies if the flooring work is part of a wider renovation that touches load-bearing elements or reconfigures rooms, since that combination usually needs its own notice regardless of the floor. We do not work on load-bearing walls ourselves, so if your project touches one, that part needs a specialist regardless of what happens with the floor.

Because the boundary between a straightforward refit and a notifiable change depends on the specific building and its existing documentation, always confirm with the building register or the city's building department before ordering materials for anything beyond a like-for-like swap.

What to consider about impact-sound requirements when choosing new materials

Impact sound insulation is usually addressed with an underlay layer beneath the visible flooring, and the choice of underlay matters more than the choice of surface material. A dense floating floor with a proper acoustic underlay can perform reasonably well; the same surface laid directly on the slab without one often performs worse than what was there before.

Tile and solid timber transmit impact sound more readily than soft coverings unless paired with the right underlay, so if you are switching from carpet to a harder surface, budget for an acoustic mat or screed layer as part of the job rather than an afterthought. This is a common point of disagreement between neighbours after a renovation, and it is far cheaper to address before laying than after a complaint.

Where to ask when the situation is unclear

If you are unsure whether your plan needs a notice, the apartment association board is the first place to ask, since they often know what previous owners in the building have done and whether the city required anything for similar work. For anything involving the building register, the city's building department can confirm what documentation exists for your building and what a given change would require.

We handle flooring jobs from 15 € per job, and can advise on suitable underlay and materials once we see the space and the existing floor build-up. For a fuller renovation including flooring alongside other work, flat renovation is priced from 180 € per job with a fixed quote given after we know the scope, so timing and permit questions can be sorted out before work starts rather than during it.