London-based architecture studio Holland Harvey has completed the transformation of Miiro Templeton Garden, a 156-room hotel set within the Nevern Square Conservation Area of Earl’s Court, London, England — this area is characterised by its late-Victorian residential terraces and formal garden squares.

Developed for the expanding Miiro hotel group, the project breathes new life into a terrace of seven Victorian townhouses. Originally converted into a hotel in the 1970s, the buildings have now been adapted through a programme of conservation, extension, and sustainable refurbishment.

Restoring and reimagining a Victorian terrace

The scheme includes a complete renovation of all guest rooms, amenity spaces, and back-of-house areas, alongside a contemporary extension that integrates seamlessly with the hotel’s historic fabric. Holland Harvey’s vision for Templeton Garden builds upon the site’s Italianate architectural language — its stucco facades, tall arched windows, and bracketed eaves — preserving the elegant rhythmic forms of the original terrace while improving its functionality and relationship to the garden.

A contemporary orangery at the garden’s edge

At the heart of the project is a new rear extension. A contemporary reinterpretation of the Victorian orangery, it spans the basement and ground floors. This addition introduces expanded amenity spaces, improved operational areas, and a generous external terrace overlooking the verdant private gardens, with landscape design by Meeuwsen Muldoon, a landscape architecture practice operating in the UK and the Netherlands. Curved architectural elements within the extension create a gentle dialogue between the contemporary addition and the historic terrace.

Working within a conservation context

Given the site’s conservation area context, the development required close coordination with local stakeholders. Working with the Royal Borough of Kensington & Chelsea and the local community, Holland Harvey ensured that the new extension enhances its setting while remaining sensitive to its surroundings.

The external material palette features reclaimed London stock bricks, Portland stone, and painted timber windows — all selected to satisfy conservation requirements and reflect the studio’s commitment to material authenticity and craft.

An interior of understated modern luxury

Inside, Holland Harvey collaborated with London-based interior design studio Thurstan to create an interior aligned with Miiro’s understated approach to modern luxury. The reconfigured ground floor now accommodates an expanded dining and lounge area, a larger lobby, and a welcoming reception designed to serve both guests and the wider Earl’s Court community. Guest rooms have been fully refurbished with high-quality materials and a timeless aesthetic that complements the building’s heritage.

Future-proofing through electrification and efficiency

In a move to future-proof the hotel, Miiro Templeton Garden now operates entirely on electric power, eliminating gas dependency and significantly reducing operational carbon emissions. A network of air-source heat pumps and a Variable Refrigerant Volume (VRV) system provides efficient heating, cooling, and hot-water generation, with waste heat recovered to further lower energy demand. The switch to a fully electric system was enabled by a major power infrastructure upgrade, while a modest photovoltaic array on the mansard roof contributes renewable energy to the building’s supply. Advanced UV-filter glazing in the new extension mitigates overheating and glare, improving thermal comfort and reducing reliance on mechanical cooling throughout the year.

Adaptive reuse and low-carbon design

With Templeton Garden, Holland Harvey continues to explore the intersection of adaptive reuse, heritage design, and low-carbon architecture. The project reflects the studio’s ethos of designing with purpose — reimagining existing buildings to create high-performance spaces that enrich both the user’s experience and local identity.