Can you build a dome home without a permit in Lithuania?

Updated 2026-10-30

Short answer: in Lithuania you cannot build a dome as a permanent home without a building permit. Today, only a small garden house on a garden plot can go up without one: up to 50 m² of floor area and up to 5 m high (LRT, 2026-09-24). The Seimas is considering a return to the earlier limit of 80 m² and 8.5 m, but for now that is only a proposal.

The dome shape changes nothing here. The rules look at a building's use, area, height and plot, not at the shape of its roof. Below is what applies now, what may change, and what it means if you dream of a small dome on a country plot.

Does a dome home need a building permit in Lithuania?

Yes. The State Territorial Planning and Construction Inspectorate (VTPSI) states that a permit document is always required to build a residential house (2023-06-13). That applies to a dome just as it does to a rectangular house.

The permit process is manageable when experienced people handle it. We walk through it step by step in “Permits for a dome home: what to expect”.

When no permit is needed: a garden house up to 50 m²

From 1 November 2024 the permit-free limits for garden houses were reduced. The then environment minister changed them by order, amending a construction technical regulation (LRT, 2026-09-24). Before that, up to 80 m² could be built without a permit; now the limit is 50 m².

Two things matter. First, this is a garden house on a garden plot, not a residential house on any plot. Second, “without a permit” does not mean “without rules”. The plot's permitted use, distances to the boundary and other requirements still apply. Protected areas and heritage sites may have stricter rules, so check the plot before you commit.

What is the Seimas proposing, and when could it apply?

Linas Jonauskas, chair of the Seimas Environment Protection Committee, has proposed restoring the rules that applied before 1 November 2024. Single-family homes and garden houses on garden plots up to 80 m² and 8.5 m high would then need no building permit (alkas.lt, 2026-09-25).

1. September 2026. After presentation, 82 members voted for the bill, none against, 10 abstained (LRT, 2026-09-24).
2. 1 December. The Seimas is scheduled to consider the bill.
3. 1 January 2027. The proposed date of entry into force, if the amendments pass (alkas.lt, 2026-09-25).

Until a vote, plan by the current rules. We will update this article after the 1 December debate.

Can a small dome fit within the garden-house limits?

By area, it can. The smallest REEDOME model, the Retreat dome, is about 50 m². That is right at the current limit, with no margin to spare.

For a dome the harder limit is height, not area. Height depends on the diameter and shape, and a sleeping mezzanine adds floor area. So an architect checks each case: how the area is counted with the mezzanine, and how high the top will be with the reed layer. Only then can we say whether a design fits as a garden house or needs a permit.

If the Seimas restores the 80 m² and 8.5 m limit, the choice widens a lot, and some larger domes on garden plots would fit too.

What not to do

• Don't start building “under the future law”. Until the amendments pass, the 50 m² and 5 m limits apply.
• Don't call a family home a garden house. Building without the required document counts as unauthorised construction, with costly and lengthy consequences.
• Don't buy a plot without checking it. Permitted use, protected areas and buffer zones matter more than house size. See “A plot for a dome”.

Frequently asked questions

Can I live permanently in a dome garden house built without a permit?

In law, a garden house and a residential house have different uses. If you plan to live there all year, plan a residential house with a permit from the start.

Do different rules apply to a dome than to an ordinary house?

No. The rules look at use, area, height and plot, not shape. A dome can be built without a permit on the same terms as any other garden house.

Can I already build an 80 m² garden house without a permit?

No. The 80 m² and 8.5 m limit is only a proposal before the Seimas. It is scheduled for debate on 1 December, with entry into force proposed for 1 January 2027.

Who handles the permit if I build with REEDOME?

We do. We arrange the surveyor, provide the architect, prepare and submit the documents, and then build to turnkey. See the whole journey to the keys.

Want to know whether a dome on your plot will need a permit? Fill in a short enquiry and our architect will look at your case.

Sources

• LRT, “Seimas to consider allowing larger garden houses without a building permit”, 2026-09-24 – lrt.lt (in Lithuanian)
• Alkas.lt, “Proposal to again allow larger houses on garden plots without a permit”, 2026-09-25 – alkas.lt (in Lithuanian)
• VTPSI, “What buildings may be built on an agricultural plot?”, 2023-06-13 – vtpsi.lrv.lt (in Lithuanian)

This is general information, not legal advice. An architect always checks the requirements for your plot.