What is a Passive House?

Simply put it is a home with very low energy consumption by incorporating:
Quality design and craftsmanship paired with superior windows, high level of insulation and heat recovery ventilation. In terms of appearance, they look like any other house.

How do you build a Passive House? To achieve a Passive House building standard your property must meet the specific energy demand targets. To find out what these are speak to you builder, architect or contact our Passive House Consultant at QTF Homes (

What is so special about Passive House?

The following elements create a Passive House, which are designed to be the highest energy efficiency homes, saving home owners thousands on living costs and are extremely sustainable.

  • Exceptionally high levels of insulation
  • Well insulated window frames and glazing
  • Thermal bridge free design and consultation
  • An Airtight building envelope
  • Ventilation with highly efficient heat or energy recovery

What are the benefits for me as a self-builder?

More Comfort, Less energy

With a Passive House from QTF Homes, careful planning and execution are essential. The attention to detail we put in will overall determine and ensure the minimal energy demand. Let’s put it this why: 10 Tea Lights or even a body heat of 4 people could keep a 20 Metre Square Passive house warm in the middle of winter, even in extremely cold climates. In reality of course, Passive houses are not heated with tea lights; they use efficient heating systems and draw ventilation that is in any case needed to ensure high indoor air quality.

What about in warmer summer months? Passive House Buildings provide impressive levels of comfort in the summer as well, making air conditioning needs obsolete. Passive House are designed to keep the total energy needed for heating and cooling a home extremely low.

Passive house are characterised by consistent temperatures on all interior surfaces and constant indoor climates without temperature swings or draughts – during cold winter months as well as hot summer periods. The Passive House Buildings superior ventilation system ensures ample fresh air at room temperature and makes for high indoor air quality.

Adapted to the local climate

The Passive House standard can be implemented all over the world. QTF Homes have worked on Passive House in UK and Ireland including Mallusk, Co Antrim and Dublin.

Where are the Cost Effective savings?

Energy efficiency lies at the heart of the Passive House Concept. Over the course of a year, a Passive house building uses no more than the equivalent of 1.5 litres of oil or 1.5m3 of natural gas (15kWh) to heat each square metre of living space that can equate to a more than 90 percent reduction in space heating and cooling energy use as compared to consumption in typical building stock.  In comparison a conventional new build which still requires 6 to 10 or even more litres of oil per years and square metre of living space, depending on building quality and location.

Use no more than 1.5 litres of oil per year to each square metre of your home


Passive house is a modern building standard that opens up the completely new perspectives for architects and engineers. You can be as creative as you wish or conventional as desired.

Passive house don’t require user manuals to operate, the benefits such Na as pleasant temperatures, No draughts and ample fresh air result from their very design. No Complicated technology need.


Passive house buildings are higher quality buildings, As Such the investment costs are often slightly higher as a result of the more intensive planning and superior components involved. Over the lifespan of the building, however Passive Houses come out on top; due to their extremely low running costs, Passive House are more cost effective than conventional neighbours on heating and running costs.

Save thousands on living costs with an energy efficient home

What are the advantages of living in a Passivhaus?

An officially certified Passivhaus home or workplace, designed and built to Passivhaus standards, can provide:

  • Lower energy bills and protection from fuel price rises.
  • Warm, snug rooms without any draughts or cold spots in winter, and cooler rooms in summer.
  • Cleaner, healthier air quality inside.
  • Low maintenance costs.
  • Less technology to go wrong, so there are fewer heating emergencies and expensive repairs.
  • Peace and quiet when the windows are shut.
  • More wall space, as you don’t need any radiators – giving you more choice of where to place pictures, pianos or sofas.

Is it true you can’t open the windows in a Passivhaus?

No, it’s not true. In summer, a Passivhaus needs to have openable windows, to release any heat that’s accumulated during the day. In winter, it’s still possible to open the windows but, depending on where the house is sited, the air might feel fresher inside than out, so residents prefer to keep them shut.

Keeping the windows open all night, every night, can reduce the internal temperature slightly and add a minimal amount to a Passive House’s energy use.

Who can help me design my Passive House?

Our Consultant at QTF Homes can help you with all yourself build passive house requirements and questions.

If you are interested to learn more about building a Passive House please send us an email for more information to and our Passive House Design Consultant will be in touch.

Learn more about Passive House Design on our website at