Premium Passive Premium "Casa De Lângă Lac" opens its doors at the International Passive House Open Days 2025

Ion and Daniela Iosif will open the doors of their home on November 8, 2025 at 11:00 am during the International Passive House Open Days event. Organized by the iPHA (International PassiveHouse Association) together with the Passive House Association of Romania, the event offers the public the chance to visit one of the houses certified at the Passive House Premium level.

A success story about efficiency and comfort

“House by the lake”, built by Litarh, located in Pantelimon, near Bucharest, is not just a house, but an example of vision, meticulous planning and execution. Built between 2020-2022, the house demonstrates that the passive standard is not just about saving energy but also about superior living comfort.

"We didn't start with the idea of building a passive house," explains Ion Iosif, the owner of the house. "We wanted to have a very comfortable house that would be easy to maintain in the future. That's how we ended up with the passive standard, and now, after more than three years of living here, I can say that it was the best decision."

The 236 square meter (ground floor + attic) prefabricated wooden structure house was built according to the highest energy efficiency standards:

• Superior thermal insulation: 30 cm mineral basaltic mineral wool on the walls and 40 cm on the roof
• Controlled mechanical ventilation with heat and moisture recovery
• Underfloor heating and ceiling cooling using a ground-to-water heat pump
• Internorm triple windows strategically oriented to maximize solar gain
• Exceptional tightness, verified by specialized tests
• Photovoltaic system that covers your home's energy needs
• Innovative finishes such as epoxy resin flooring

Living experience: extreme comfort at minimal cost

After more than three years of living in the house, the Josephs can confirm the benefits of a premium passive house with hard facts.

"The consumption for heating and cooling does not exceed 5 kW per day for the 170 square meters of living space," explains Ion. "With the photovoltaic system we installed, we are practically energy independent for the whole year."

Ion adds that, in addition to the financial savings, the quality of life has increased significantly: "We have a constant optimal temperature, controlled humidity, constantly filtered fresh air and great acoustic comfort. No rain on the roof, street noises or noise from other rooms."

An interesting aspect is that the family has not encountered the typical problems of new houses: "We have no cracks in the plaster, even though it is a timber frame house. Everything behaves exactly as it was designed, even after the seasons."

How to register for the visit

The application process includes the following steps:

1. Fill in online application form
2. Wait for confirmation of your participation
3. The exact house address will only be communicated to selected participants one day before the event

Important: The number of places is limited and participation is based on confirmation from the organizers.

Special guests: professionals behind the scenes

The event will be attended by several specialists who contributed to the realization of this exemplary house:

• Vlad Liteanu (Litarh Wooden Houses) - responsible for the prefabricated wooden structure
• Ovidiu Țifui - specialist in technical systems installed in the home
• Cătălin Petre (Kulttur/Internorm) - expert in high-performance joinery
• Adriana Sîngeap - energy consultant and certification expert, representative of the organizers

They will provide specialized technical information and answer visitors' questions about the solutions implemented.

Agenda of the November 8 visit

The program of the visit will include:

• Introducing the passive house concept and its benefits
• House tour with technical explanations
• Introducing technical cameras and smart systems
• Discuss costs, challenges and solutions
• Q&A session with the owner and invited experts

About International Passive House Open Days

The event, organized annually by iPHA, gives the public the chance to visit passive houses from all over the world and talk directly with owners and specialists. It is an excellent opportunity for those who:

• Interested in building a passive house
• Want to better understand the benefits of this concept
• Looking for sustainable solutions for their homes
• They want to see how a near-zero energy home works in practice

In Romania, the event is coordinated by the Romanian Passive House Association and will take place from November 7-9, 2025.

"The House by the Lake" is a concrete example that the passive house standard is affordable in Romania as well, offering concrete benefits to owners in the long term. The visit on November 8 is a unique chance to see what the future of efficient and comfortable residential construction looks like, together with the professionals who have contributed to the realization of this remarkable project.

Visit registration form