Passive houses (Passivhaus standard)

Energy, comfort, and sustainability—the home of the future

Passive houses are not just a modern trend, but the highest standard for energy efficiency in construction. They provide a healthy microclimate, low energy costs, and maximum comfort throughout the year—without compromising on design and architecture. TimberTech Bulgaria uses CLT, BSH, and KVH technologies to create passive houses that meet the German Passivhaus standard and exceed European requirements for sustainable construction.

What is the Passivhaus standard?

Passivhaus is an internationally recognized standard developed in Germany that ensures that a building is so well insulated and airtight that it requires almost no active heating or cooling. The main principles include:

Exceptional thermal insulation of walls, roof, and floor.

Air tightness and absence of thermal bridges.

Triple glazing and orientation towards the sun for passive heating.

Controlled ventilation with air recovery.

Benefits for owners and investors:

Up to 90% lower energy costs compared to traditional construction.
Constant temperature and fresh air in all rooms.
Higher property value and long-term sustainability.
Minimal carbon footprint – wood construction captures and stores CO₂.
Suitable for any climate – from mountainous to coastal areas.

How does TimberTech build passive houses?

At TimberTech, we integrate architecture, engineering, and materials right from the project concept stage.
Our CLT and BSH structures provide precise insulation, airtightness, and exceptional energy efficiency.
We work with certified Passivhaus designers to ensure that every detail—from the foundation to the windows—meets the standard.

Types of passive buildings:

Single-family and multi-family dwellings
Hotels and holiday villages
Public buildings and offices
Educational and healthcare facilities