Sanitation: Department Supports Homeowners in Gournay

A conformity certificate is required for property sales, and departmental services offer guidance and potential funding for work.

A technician from the water and sanitation department inspects the plumbing of a 1930s house in Gournay, Seine-Saint-Denis.
AI

A technician from the water and sanitation department inspects the plumbing of a 1930s house in Gournay, Seine-Saint-Denis.

In Gournay, the Department of Seine-Saint-Denis helps homeowners obtain sanitation conformity certificates, a crucial step for property sales, and offers funding for renovations.

To sell a property, a sanitation conformity certificate is now essential. Departmental services are available to guide homeowners through these procedures and can even finance part of the necessary work. This morning, Mr. Pierre welcomed a team of agents from the water and sanitation department to his 1930s house in Gournay, located on the banks of the Marne. He was awaiting this visit to obtain the valuable certificate for his property sale.
« I intend to sell my property and for that, I need a sanitation conformity certificate. I also want everything to be in order at the time of sale so the buyer is assured of a compliant installation », explains Mr. Pierre. Regulations mandate the separation of rainwater and wastewater discharge, a standard not always met in older installations, often modified over successive ownerships.
« It is possible to apply for the conformity certificate online, explains Carole Perret, head of application processing at the Department, but also by mail. We can assist users with their procedures. We first ensure that the connection in question is indeed connected to the departmental network. If not, we direct the person to the correct contact: municipality or EPT. Then, we schedule an appointment for a technician's visit for a financial contribution of €175.78 for an individual », she specifies. Annually, 400 to 500 visits are carried out.
When a control has already taken place within the five years preceding the sale, the Department can provide a copy of the certificate in the owner's name for a financial contribution of €70.31.
In Gournay, the inspection began. The agents methodically inspected the path of each gutter, checking the connections of the various bathrooms and ensuring no rainwater was discharged into the wastewater system. Methods such as listening to pipes, using fluorescein dye, or injecting smoke into the pipelines confirmed that rainwater was returning to the ground through infiltration, a sign of compliance.
« With this plan, we will update the data and the general plan of the sanitation network. It shows all existing pipelines, including those on private properties. This is important for understanding and managing the network, and mitigating flood and pollution risks », explains Alain Rozman, a technician. « I love this work, he exclaims. There's no question of cutting corners; everything must be verified! »
At Mr. Pierre's, everything was generally in order, except for one rainwater discharge. Alain Rozman informed him that he would receive a non-conformity certificate but immediately reassured him by indicating the necessary work. He also specified that up to €5,000 could be reimbursed by the Department, with an additional €1,000 if the infiltration solution is chosen. After the work is completed, a re-inspection will lead to the certificate.
Mr. Pierre expressed his satisfaction, ready to undertake the renovations to sell his house. The Department, through delegation from the Water Agency, assists homeowners with their financial aid applications.
Based on information from the official source: Département de la Seine-Saint-Denis (02/10/2026)