OS Lair Boathouse, Loch Dughaill, Achnashellach, Scotland.  

There was an existing boathouse at Os Lair with one large studio room held within an A frame. The brief was to increase the accommodation to include 3 bedrooms.


Roof structure diagram

The pitch of the roof was raised and the structure was cantilevered out at the sides to provide more usable space. 


Internal view showing both the original structure and the new raised pitch

Before and after pictures


The project was designed to make the most of the breathtaking views of the loch.


The boathouse is highly insulated and has solar panels on the south facing roof. 


OS Lair Boathouse
Loch Dughaill, Achnashellach, Scotland

Private Client 

Completed, 2008 


John Addison (Structural Engineer)