In north London, Mortimer Road is the renovation and extension of a post-war terraced house that demonstrates how thoughtful design interventions can improve the environmental performance and liveability of an existing home. Working within the constraints of a limited budget and the original building fabric, Fanis Anastasiadis Architecture’s approach combines a rear extension, loft conversion, and comprehensive interior reconfiguration to create a brighter, more energy-efficient dwelling.

Rather than relying on extensive reconstruction, the design enhances the performance of the existing structure through targeted upgrades that extend its lifespan and reduce the need for future interventions.

Improving performance through refurbishment

The project prioritises the retention and improvement of the existing building, reducing the material impacts associated with demolition and new construction. Upgrades to the building envelope, including improved insulation, enhance thermal performance by reducing heat loss during winter while limiting overheating during summer heatwaves. Natural ventilation forms an important part of the environmental strategy, allowing fresh air to circulate through the house and reducing reliance on mechanical cooling. Together, these passive measures create a more comfortable indoor environment while lowering operational energy demand.

Bringing daylight into the home

A key objective of the redesign was to overcome the limitations of the original layout, where the centre of the house received little natural light. Carefully positioned internal and external windows introduce daylight deep into the plan, reducing dependence on artificial lighting while improving the quality of the interior spaces. The reconfigured ‘broken-plan’ ground floor maintains visual connections between living spaces while creating distinct zones for different activities. This approach balances openness with privacy and supports flexible patterns of family life.

Durable materials and long-term comfort

The interior employs a restrained palette of natural, durable materials chosen for longevity and occupant comfort. Reflective Baxab flooring helps distribute daylight throughout the ground floor, enhancing brightness without increasing energy use. Rounded corners, timber elements, and simple finishes contribute to a calm interior designed to age well. A centrally positioned double-sided biofuel fireplace provides an additional heat source while acting as a shared focal point between adjoining living spaces.