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When your neighbor's sewage treatment plant threatens your property

How to defend yourself in construction proceedings

A neighbour’s wastewater treatment plant may restrict the use of your land, threaten a future well or reduce property value, so it is worth acting already in the permitting process. Objections must identify a concrete interference with your rights, such as noise, odour or infiltration risks. The article explains when you are a party to the proceedings, how to use expert reports and when to appeal.

When a neighbor's wastewater treatment plant threatens your property

Why deal with it?

  • prevent you from building a well (or other structures) on your property,
  • reduce the value of your property,
  • cause odors, noise, or waterlogged soil,
  • and disrupt the peace and comfort of your home.

Our clients often feel helpless in such situations. They feel that there is nothing they can do about it – but the law gives them clear rights.

How do you know if you have the right to object?

If the planned construction is located near your property and could affect it in any way, you have the right to participate in the building permit proceedings. You also have the right to object – for example, because the plan threatens your plans, the value of your property, or directly your health and the environment.

What can you object to?

In a specific case we recently dealt with, a client objected to a sewage treatment plant that was to be located only 2 to 4 meters from her property. She argued that:

  • she would not be able to build a well due to the protection zone,
  • the treatment plant's infiltration system had not been professionally assessed in terms of its impact on surrounding properties,
  • there could be odors, noise, aesthetic degradation of the plot, and a risk of loss of investment value,
  • there was a safer solution that the neighbor had initially promised but ultimately rejected without explanation.

Although the builder submitted a hydrogeological assessment, it completely ignored the impact on neighboring properties. This should be a matter of course—it's not just about land and water, but also about fair treatment and good neighborly relations.

What to do if this happens to you?

  1. Follow the building proceedings – you can register as a participant.
  2. Consult a lawyer – they will help you draft strong and well-founded objections.
  3. Negotiate with your neighbor – ideally, try to find a mutual solution.
  4. Don't give up – even if the builder argues with expert opinions, it is important to check their completeness and actual impact on your land.

When is it time to speak up?

As soon as possible. Objections must be submitted within short deadlines – if you miss them, it may be too late. It is best to contact a lawyer as soon as you learn of the plan.

Our specialists will help you

ARROWS law firm

Summary

Defending your rights in construction proceedings makes sense – and can often affect not only your land, but also the future of your entire investment. Even a seemingly inconspicuous structure, such as a domestic sewage treatment plant, can fundamentally change the usability and value of your property. The law is on your side – it is important to know how to apply it correctly.

Do you have a similar problem? Get in touch with us. We will discuss with you what can be done and help you protect what is yours.

DO YOU NEED LEGAL HELP?

Get in touch — we're happy to help.

ARROWS law firm

Next steps

Every situation is different and the right approach depends on the details. Tell us what you are dealing with – an ARROWS specialist will get back to you within 24 hours, assess your situation and propose the next steps.

About the author

JUDr. Lukáš Slanina
JUDr. Lukáš Slanina

Associate, partner

Lukáš Slanina as one of the partners and attorney at ARROWS focuses mainly on providing legal support to real estate agencies and their preparation for the new real estate law. He leads a team that deals with contractual documentation for real estate transfers, all contractual matters related to the functioning of real estate agencies and successfully represents real estate agencies in court disputes with dishonest clients. He regularly provides legal training for real estate agents.

Disclaimer:

The information contained in this article is for general informational purposes only and serves as a basic guide to the issue as of 2026. Although we strive for maximum accuracy, laws and their interpretation evolve over time. We are ARROWS Law Firm, a member of the Czech Bar Association (our supervisory authority), and for the maximum security of our clients, we are insured for professional liability with a limit of CZK 350,000,000. To verify the current wording of the regulations and their application to your specific situation, it is necessary to contact ARROWS Law Firm directly (consultation@arws.cz). We are not liable for any damages arising from the independent use of the information in this article without prior individual legal consultation.

Is an adjacent construction infringing on your rights?

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Your case will be handled by:JUDr. Lukáš Slaninaassociate, partner

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