Case Studies – Future-Proof Homes Across London & the UK

Our portfolio demonstrates how future-proofing transforms homes — from listed heritage buildings to contemporary residences. Each case study highlights how we combine sustainable retrofit strategies, intelligent design, and renovation expertise to improve comfort, protect long-term value, and elevate environmental performance.

Retrofit Case Studies (Completed)

WESTMINSTER FIRE STATION, SW1

Address: 4 Greycoat Place, London, SW1

BREEAM Rating: Very Good

Restoration of a Grade II listed Edwardian fire station into 17 residences, including sustainable upgrades such as solar panels, advanced heat recovery, and modern energy-efficient systems.

- 60% reduction in overall carbon emissions.
- 10% decrease in unregulated emissions via smart appliances/thermostats.
- 80% recovery of waste heat through advanced recovery units.
- Annual saving of 2.9 tonnes of carbon from solar panels.

55 VICTORIA STREET, SW1

Address: 55 Victoria Street, London, SW1

BREEAM Rating: Excellent

Transformation of a 1980s office building into loft-style apartments, gym, and sky garden. Achieved EPC B ratings through sustainable products, efficient services, and renewable technologies.

- BREEAM Excellent overall.
- FSC-certified wood flooring (PEFC chain of custody).
- WRAS-approved taps and water-saving fixtures.
- MVHR (Mechanical Ventilation with Heat Recovery).
- A-rated appliances throughout.

Explore landmark developments by Alchemi Group

LEINSTER SQUARE, W2

Address: 7-12 Leinster Square, London, W2

BREEAM Rating: Very Good

Forensic restoration of Grade II listed Victorian stucco-fronted homes into five townhouses and six apartments, upgraded with eco-friendly systems and sustainable materials.

- BREEAM Very Good overall.
- EPC B ratings achieved.
- FSC wood flooring, WRAS-approved taps.
- Solar panels, LED lighting, low-VOC paint, bamboo carpeting.
- MVHR ventilation for clean, efficient airflow.

Retrofit Case Studies (In Progress)

HAMPSTEAD, NW6

Address: Hampstead, London

Size: 5,000 ft2 with indoor pool

Existing EPC: Band E (53 Points)

A late-1970s residence requiring its first major upgrade since construction. Full retrofit in progress, addressing outdated windows, doors, insulation, and moisture remediation, alongside sustainable design improvements.

- Window and door replacement for high-performance glazing.
- Cavity wall insulation and loft insulation.
- Air source heat pump integration.
- Mould remediation and improved ventilation.
- Long-term goal: EPC A rating.

ISLINGTON, EC1

Address: Islington, London

Size: 2,000 ft2

Existing EPC: Band D

Grade II listed, five-storey Georgian townhome situated above historic water streams. Currently rated EPC D, the goal is to elevate performance to a minimum EPC B rating through phased energy upgrades.

- Loft insulation and LED lighting installed.
- Custom thermal curtains to reduce heat loss.
- Planned upgrades: solar PV, air source heat pump, and internal wall insulation.

Kenning Road retrofit casestudy of Outdoor balcony with a wooden table and six matching chairs, overlooking a cityscape with buildings, greenery, and a construction crane under a mostly clear sky.

KENNINGTON, SE11

Address: Kennington, SE11 London

Size: 1,500 ft2

Existing EPC: Band “D”

First- and second-floor flat above commercial premises, currently undergoing a deep retrofit to address numerous energy and layout inefficiencies plus its environmental impact.

- Target improvement: EPC C rating.
- Loft and cavity wall insulation.
- Replacement of four single-glazed sash windows with custom double glazing.
- Low-VOC paint, refurbished joinery/woodwork.
- Biodegradable flooring upgrades.

Interiors Case Studies

Sustainable interior by Studio L London in Westminster Fire Station

DINING & KITCHEN

- FSC® and PEFC-certified herringbone oak flooring.
- Low-VOC paints and natural microplastic-free wall finishes.
- Salvaged vintage dining furniture and chandelier, repurposed for long-term use.
- Repurposed buffet server adapted as a kitchen island.
- Locally crafted tap in unlacquered brass, plus quartz stone worktops.
- Locally purchased vintage accessories and art.

BATHROOM

- Locally sourced ceramic tiles and sanitaryware, made in England.
- Unlacquered brass fixtures designed to age naturally.
- Natural marble stone finishes.
- WRAS-approved taps with flow restrictors.
- LED downlighting and wall lights for energy efficiency.

BEDROOM

- Deep pile bamboo carpeting.
- Natural paper weave wallcoverings, with one tree planted per roll purchased.
- Bedding with Butterfly Mark accreditation, made from recycled fibres.
- LED decorative lighting.
- Custom upholstered bed in tencel velvet, transported plastic-free.

See more award-winning interiors at Studio L London

Address: 4 Greycoat Place, London, SW1

Size: 2 bed, 1436 ft2

A fully restored and modernised Grade II listed apartment within Westminster Fire Station, renovated with an emphasis on sustainable materials and timeless interior detailing.

Address: 55 Victoria Street, London, SW1

Size: 3 bed, 1800 ft2

Part of the 55 Victoria Street development, this “family bathroom” design was replicated across multiple apartments to combine practicality with eco-conscious detailing.

Address: 7-12 Leinster Square, London, W2

Size: 3 bed, 2400 ft2

A guest bedroom within a Grade II listed Victorian townhouse at Leinster Square, renovated with a focus on comfort, low-carbon choices, and elegant detailing.

Leinster Square, W2 —

Sympathetic Grade II Retrofit

Before → After:

From derelict interiors to restored heritage detailing.

The Leinster Square retrofit demonstrates how a forensic interior restoration guide sympathetic renovation. We reinstated cast-iron stair spindles, restored plaster detailing, and introduced discreet upgrades like secondary glazing and LED lighting. The result: a home that retains its historic charm while meeting today’s comfort and efficiency standards.