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Darras Hall: Designing for Performance, Adaptability, and Real Life

  • Writer: Ian McMillan
    Ian McMillan
  • 1 hour ago
  • 2 min read

This project in Darras Hall began with a clear but demanding brief: to transform an existing house into a high-performing, future-ready home for a client living with MND.

It was never about surface-level change. The focus was on how the building performs, adapts, and supports day-to-day life over time — both now and as needs evolve.


The Brief

The key drivers were:


  • long-term accessibility and adaptability

  • energy efficiency and running cost control

  • spatial clarity and ease of use

  • a calm, robust material palette


These weren’t separate ambitions. They had to be resolved together — without compromise.

Crucially, accessibility wasn’t treated as an add-on. It informed the spatial planning from the outset: circulation, thresholds, room relationships, and the way spaces are approached and used.


The Approach

A fabric-first strategy underpinned the design.

The existing building was reworked to significantly improve thermal performance and airtightness, with systems carefully integrated to support this:


  • MVHR for controlled ventilation

  • Air source heat pump with underfloor heating

  • Photovoltaics with battery storage

  • Careful detailing to reduce thermal bridging


Externally, aluminum and timber cladding were used to give the building a clear, durable identity.

Internally, the focus was on legibility and ease of movement — spaces that are intuitive, generous where needed, and efficient without feeling constrained.


Before and After


The transformation is significant, but the real success isn’t visual.

It’s in how the house now functions:


  • consistent internal comfort

  • low energy demand relative to size

  • clear, navigable spaces

  • systems that work together rather than compete


Living with the Building

Now occupied, the project has moved beyond design intent.

The feedback has been clear:


  • environmental systems are working effectively

  • energy performance is close to EnerPHit-level expectations

  • the house supports daily life without friction


This is where architecture is tested — not in drawings or photographs, but in use.

In projects like this, small decisions matter: door widths, turning circles, levels, sightlines, storage, and how services are integrated.

Get them right, and the building disappears into the background. Get them wrong, and the impact is felt every day.


Design, Performance, and Evidence

Projects of this nature highlight that buildings are not just visual objects — they are systems that need to perform over time.

Accessibility, usability, and environmental performance are measurable. They can be assessed, tested, and — where necessary — challenged.

This same understanding underpins expert witness work: reviewing how buildings are intended to function, how they have been designed or constructed, and how they perform in reality.

It requires a combination of technical knowledge, spatial judgement, and an understanding of lived experience.


Closing

This is a project that rewards not just how it looks, but how it works —and how it continues to support the person living in it.

It reflects a broader approach to architecture: designing buildings that are robust, adaptable, and grounded in real life.

 
 
 

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GET IN TOUCH:

Tel: 07484 638858

Email: ian@studiomcmillan.com

Studio McMillan Architects

32 Bath Street

Edinburgh EH15 1HD

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