The Energy Performance Certificate (PENB)

Updated 29 July 2026 · 4 min read

The short version: the Energy Performance Certificate — PENB in Czech — is one of the few property documents that is genuinely and unambiguously mandatory. You must produce one when you sell or let. It is normally valid for ten years and may only be issued by an authorised energy specialist. Without it, your advertisement has to state the worst energy class, and a fine is possible.

Most Czech maintenance duties turn out to be softer than people claim. This one is the opposite: it is clear, enforceable, and routinely left to the last minute.

What it is

The certificate rates how energy-hungry the building is, placing it on a scale from A (most efficient) to G (worst). It is prepared by an authorised energy specialist listed in the register kept by the Ministry of Industry and Trade — nobody else may issue one, and you can check the register yourself.

When you need it

Selling — you present it to the buyer, in practice from the first viewing onwards.
Letting — you present it to the tenant.
New build — it forms part of the documentation.

Validity, and why timing matters

A certificate is generally valid for ten years, or until the building undergoes a substantial change. Get it before photographing and advertising the property, not after you have a buyer. A house shown in a better energy class sells faster and for more — and the number in the advertisement is one of the first things Czech buyers filter on.

Do not leave it to the estate agent

Agents will often arrange it for you, sometimes at a markup and sometimes late. You can commission a specialist directly from the ministry’s register. It is not a complicated document to procure, and having it in hand before you list makes the whole sale smoother.

Without a valid certificate, the energy class in the advertisement must be stated as the worst (G), which devalues the property in the eyes of anyone comparing listings. Failing to produce one can also attract a fine.

If you are buying

Ask for it early. A seller who cannot produce a certificate is a seller who has not been keeping the paperwork — and the certificate is usually the easiest document of the lot to obtain. Its absence tells you something about the rest.

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Official sources

Czech-language sources. They are the authoritative texts; this page is a plain-English summary of them.

General information about Czech rules as of 2026, not legal advice. Requirements depend on your specific property and can change. Where it matters, follow the applicable regulations and consult a qualified professional.