We are pleased to share the results of the record-breaking energy analysis of a Lignodesign house that we recently completed. The Energy Performance Certificate (APE) revealed an extraordinary figure: an overall non-renewable energy performance index (EPgl,nren) of just 2.86 kWh/m² per year (as visible in the image below).
This value is not just a number, but tangible evidence of how high-quality wood construction is redefining housing standards.

1. A Nearly Zero Energy Building (nZEB) Energy Consumption.
The value of 2.86 kWh/m² per year is outstanding. To understand its magnitude, consider that the highest energy class in Italy is Class A4.
- Above Standard A4: Class A4 houses generally have a much higher benchmark consumption (in the example in the image, 30.59 kWh/m² per year for a similar newly constructed building). Our result is about ten times lower than this benchmark, placing us at the absolute top of energy efficiency.
- nZEB building: This index configures the dwelling as a near-zero energy building(nZEB), where the extremely low energy demand is covered to a significant extent by locally produced renewable sources.
2. Immense Value for the Environment: The Sustainable Choice of Wood
The choice of wood as a building material is intrinsically linked to environmental sustainability.
- Renewable Material: Wood is a renewable resource that absorbs CO2 as it grows, contributing to the reduction of greenhouse gases in the atmosphere.
- Efficiency and Insulation: Wood houses are distinguished by exceptional thermal insulation, which dramatically reduces energy requirements for heating and cooling. This results in minimal environmental impact and almost total independence from fossil fuels.
- Sustainable Construction Process: In-plant prefabrication reduces material waste, construction time and logistical impact compared to traditional construction.
3. Catalyzing Real Estate Investment in Future Perspective
Investing in a Lignodesign house is not only an ecological choice, but also a smart financial transaction.
- Savings in Utility Bills: The most immediate economic benefit is the drastic reduction in energy costs for the owner.
- Increased Market Value: Energy performance is an increasingly valued and determining factor in real estate valuation. As new European directives on “green homes” come into effect, properties with high energy efficiency (such as Class A4) are seeing a significant increase in their market value compared to those in lower classes.
- Resilience to Future Regulations: Such a high-performing home is already aligned with future regulatory requirements, ensuring that the investment maintains its value over time and does not require costly retrofitting.
This record-breaking achievement demonstrates how innovation and sustainability can go hand in hand, creating homes that offer superior living comfort, tangible financial savings, and a greener future.