Path-50 delivers deep energy retrofits for London homes using a whole-house approach, guided by Passivhaus retrofit principles. We look at the building as one system, considering insulation, airtightness, thermal bridging, windows, ventilation and heating together. The aim is a warmer, healthier home that costs less to run, while respecting the character of the property. We manage and coordinate the design, engineering and construction process, so one team looks after the project.
Path-50 is led by a Certified Passive House Tradesperson and is a member of AECB and the Passivhaus Trust.
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Upgrading one element on its own can leave problems elsewhere: a better window beside a leaky junction, or new insulation with thermal bridges left in place. We start with a whole-house plan, then sequence the work so each stage supports the next.
Victorian and Edwardian terraces, period family houses and flats across London. Many are in conservation areas, so we plan the work around planning rules and original features, often insulating from the inside.
Discuss your vision and explore all possibilities together.
Tailored designs created to match your preferences and goals.
Engineers produce detailed technical designs for your home build.
Finalise your project timeline with approved designs and costs.
Efficiently building or retrofitting your home while keeping you updated.
Yes. How far you can go depends on the building. We assess it first and tell you what is realistic, including whether the EnerPHit retrofit standard is feasible.
Yes. Staging works best when there is a plan for the whole house first, so each stage fits the next.
Not always. In conservation areas we often work from the inside and advise on any permissions needed.
Moisture is managed in the design. Materials and details are chosen so the building can cope with it.
Path-50 is led by a Certified Passive House Tradesperson and members of AECB and Passivhaus trust .
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