Casa Islay

Near Zero Energy House (nZEH)

Transforming space, reducing energy consumption

This little Moorish style holiday home was originally built in the eighties. In 2011, it was acquired by a German medical specialist looking for a comfortable holiday home that would meet his high living standards, while complying with German build standards and relying on healthy and natural building material. Working closely within these strict guidelines, CORE team was able to offer an ecologically sustainable design that exceeded expectations.

High thermal insulation and Schüco triple panel windows were used with Nordic oak for the bespoke internal doors, kitchen and bathroom cabinets – all of which were matching. Previously, due to small windows, vegetation and wrong orientation of the view lines, it was not clear how stunning the sea view could be. By changing the layout and adding a new floor, the small-looking Moorish style villa we started with was transformed into a highly energy-efficient holiday home that became comfortable during all seasons and suitable for holiday rentals all year long. The use of ecological materials such as clay plaster, wall heating, solar panels as well as a biomass boiler for heating, plus cooling by ventilation, helped transform this house into a self- sufficient, low-energy building.

Before & After

Use the arrows |

Plot Size
943 m²
Plot Classification
Build Area
182 m² extended to 265 m²
Number of Rooms
4 & 3 bathrooms
Project Type
Refurbishment and extension