Passive House: The Ultimate in Energy Efficiency
Achieve ultimate energy efficiency with Germany's certified Passive House construction specialists who deliver buildings that virtually heat and cool themselves. AkquiVest creates Passive House and ultra-energy-efficient buildings that dramatically reduce energy consumption while providing superior comfort through advanced airtight construction and optimized building envelope design.
Explore Passive House construction for your project
90% Energy Reduction
Our Passive House buildings achieve up to 90% energy reduction compared to conventional buildings, leading to substantial long-term savings.
Superior Comfort
Experience consistent indoor temperatures year-round with exceptional air quality, free from drafts and cold spots.
Certified Expertise
AkquiVest's team possesses deep expertise in airtight construction and advanced building envelope systems, ensuring every project meets rigorous Passive House standards.
The Five Passive House Principles

Passive House construction adheres to five core principles that collectively ensure extraordinary energy efficiency and occupant comfort:
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1. Superior Insulation & Thermal Bridge-Free Design
Utilizing thick, high-quality insulation around the entire building envelope, meticulously designed to prevent thermal bridges, where heat could otherwise escape or enter.
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2. Airtight Building Envelope
An exceptionally airtight shell minimizes uncontrolled air leakage, preventing heat loss and maintaining stable indoor temperatures while enhancing sound insulation.
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3. High-Performance Windows & Doors
Triple-glazed windows and insulated frames, specifically designed for Passive House standards, drastically reduce heat transfer and ensure a comfortable indoor climate.
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4. Heat Recovery Ventilation System
A continuous fresh air supply is maintained using a heat recovery ventilation system, which recovers up to 90% of the heat from exhaust air, ensuring excellent air quality without energy loss.
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5. Optimized Solar Gain
Strategic orientation and shading optimize solar heat gains in winter while preventing overheating in summer, balancing natural light with thermal performance.
Extraordinary Energy Performance Results
AkquiVest's Passive House projects consistently deliver unparalleled energy efficiency and indoor climate superiority validated by rigorous certification standards.
Energy Consumption
≤ 15 kWh/(m²a)
Heating & Cooling Demand. This is a 90% reduction compared to conventional buildings.
Primary Energy Renewable
≤ 60 kWh/(m²a)
Total energy demand, including domestic hot water and household electricity for certified projects.

Airtightness
n50 ≤ 0.6 h-1
Air changes at 50 Pa pressure per hour, confirming an exceptionally airtight envelope.
These performance metrics translate directly into long-term cost savings, a reduced ecological footprint, and a consistently comfortable living or working environment. We ensure every project adheres to the highest Passive House certification standards.
Certified Passive House Projects
Explore some of AkquiVest's successfully completed Passive House projects, each a testament to our commitment to exceptional energy performance and sustainable design.

Harmonious Living, Minimal Footprint
This single-family Passive House in Baden-Württemberg achieves an annual heating demand of just 12 kWh/(m²a). Its thoughtful design integrates seamlessly with the natural landscape while providing year-round thermal comfort.
- Certified: Passive House Institute (PHI)
- Energy Savings: 92% vs. standard

Sustainable Workspace, Optimal Comfort
A multi-story office building in Berlin-Mitte, certified as Passive House, provides a highly productive work environment with negligible heating and cooling costs. Its advanced ventilation system ensures superior indoor air quality for all occupants.
- Certified: Passive House Institute (PHI)
- Energy Savings: 88% vs. standard office

Revitalized Heritage, Future-Proof Performance
This challenging renovation project in Hamburg transformed an older building into an EnerPHit certified Passive House, demonstrating that deep energy retrofits are achievable, significantly reducing its environmental impact and operational costs.
- Certified: EnerPHit (PHI renovation standard)
- Energy Savings: 85% vs. original building
Achieve Passive House Performance for Your Project
Considering a Passive House or an ultra-energy-efficient building? AkquiVest offers comprehensive consultation and support to bring your sustainable vision to life. Our friendly experts will guide you through every step, ensuring optimal energy savings and lasting comfort.
Feasibility & Planning
Initial assessment and detailed planning to explore the feasibility and benefits of Passive House for your specific project.
Energy Modeling & Prediction
Advanced energy modeling to predict performance, optimize design elements, and ensure your building meets the highest standards.
Certification Guidance
Full support through the Passive House certification process, ensuring all documentation and construction aspects comply with strict requirements.
Partner with AkquiVest for a building that not only lasts but excels in energy efficiency, comfort, and environmental responsibility. We are here to help you achieve long-term energy savings and a healthier living or working environment.
Request a Consultation Today