Bespoke Passive House & Timber Homes in London and the Southeast

If you are looking for a Passivhaus builder or eco house builder in London and the South East, Path-50 builds bespoke, high-performance homes in London, Surrey, Berkshire, Buckinghamshire, Hertfordshire and Oxfordshire. Our fabric-first approach treats the house as a complete system, with insulation, airtightness, thermal bridging, ventilation and building services planned together. We manage and coordinate the design, engineering and construction process, so one team looks after the whole project.

Path-50 is led by a Certified Passive House Tradesperson and is a member of AECB and the Passivhaus Trust.

Speak to Path-50 about your project. No obligation

Where we work

  • London
  • Surrey
  • Berkshire
  • Buckinghamshire
  • Hertfordshire
  • Oxfordshire

London is our base, and our projects span the Southeast. If you are not sure whether your site is in range, get in touch.

What we build

  • Bespoke new-build homes – Designed around your self-build plot, brief and performance goals.
  • Passive House and low-energy homes – Where a project is going through Passive House certification, we build to that target.
  • Timber and CLT construction – Timber construction can help reduce embodied carbon compared with conventional structural systems.
  • Whole-house retrofit – Particularly for London homes.

Fabric first, from design to site

  • Airtightness is part of the construction process, not only a test at the end.
  • Insulation continuity and thermal bridges are addressed from the design stage.
  • Critical junctions are coordinated before they reach site and checked repeatedly during the build.
  • Quality of execution on site is fundamental to the performance that was designed.

Building on a custom build or self-build plot in the Southeast

Many Southeast projects are custom or self-build plots with more space than a London site. That gives more freedom over orientation, form and construction method, and those early decisions affect both performance and cost. Planning requirements also vary between local authorities, so we look at the site and its constraints at the start.

How it works

Consultation

Discuss your vision and explore all possibilities together.

Design

Tailored designs created to match your preferences and goals.

Technical Stage

Engineers produce detailed technical designs for your home build.

Contract Signing

Finalise your project timeline with approved designs and costs.

Construction

Efficiently building or retrofitting your home while keeping you updated.

Common Questions

Do you work outside London?

Yes. We work across London and the South East, including Surrey, Berkshire, Buckinghamshire, Hertfordshire and Oxfordshire

 No. Certification is specific to each project. Where a project is going through certification, we build to that target. Other projects follow the same fabric-first principles.

 Ideally before the design is fixed. Decisions on form, orientation and construction system affect performance, so early conversations help

Path-50 is led by a Certified Passive House Tradesperson and members of AECB and Passivhaus trust .

See our accreditations page here

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