Case Studies — Future-Proof Homes Across London

Every project below began with a homeowner who wanted more from their property: greater comfort, stronger performance, and lasting value. What you see here is what coordinated, design-led project management actually delivers — across listed heritage buildings, period conversions, and contemporary residences.

Completed Projects

CASE STUDY 1 — Westminster Fire Station

Grade II Listed Restoration — BREEAM Very Good
Restoration of a Grade II listed Edwardian fire station into 17 residences, combining heritage conservation with a comprehensive sustainable upgrade programme.
How we achieved a 60% reduction in carbon emissions:
- 60% reduction in overall carbon emissions across the development
- 80% of waste heat recovered through advanced heat recovery units
- Annual saving of 2.9 tonnes of carbon from solar panel installation
- 10% reduction in unregulated emissions via smart appliances and thermostats

55 Victoria Street, SW1 from Alchemi Group, Stiff + Trevillion and Studio L, London

CASE STUDY 2 — 55 Victoria Street

Office-to-Residential Conversion — BREEAM Excellent, EPC B
Transformation of a 1980s commercial building into loft-style apartments, a residents' gym, and sky garden — achieving BREEAM Excellent and EPC B throughout.
How we achieved BREEAM Excellent:
- MVHR (Mechanical Ventilation with Heat Recovery) throughout
- FSC-certified wood flooring with PEFC chain of custody
- WRAS-approved water-saving taps and fixtures
- A-rated appliances specified across all apartments

Leinster Square, W2 by Alchemi Group, Studio L London and Tate Hindle architects

CASE STUDY 3 — Leinster Square

Grade II Listed Victorian Restoration — BREEAM Very Good, EPC B
Forensic restoration of Grade II listed Victorian stucco-fronted homes into five townhouses and six apartments, retaining every heritage detail while achieving modern energy performance standards.
How we achieved EPC B in a listed Victorian building:
- Solar panels, MVHR ventilation, and LED lighting throughout
- FSC-certified flooring and WRAS-approved fittings
- Low-VOC paint and bamboo carpeting specified
- Secondary glazing installed to preserve listed sash windows

Explore the full Alchemi Group development portfolio →

Retrofit Case Studies (In Progress)

Belgravia Court Exterior Alchemi Renovations Case Studies

BELGRAVIA, SW1

Address: Belgravia, London

Size: 650 ft2

Existing EPC: Band E (53 Points)

A 1960s apartment undergoing its first major upgrade in over 50 years, featuring a comprehensive Platinum Tier future-proof renovation.

The project includes modernizing outdated windows, insulation, electrical systems, and plumbing, combined with a redesigned layout and upgraded specifications. Interior design and decor are currently in progress to create a stylish, energy-efficient living space that meets today’s sustainability standards.

- 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.

Backyard patio with wooden table and chairs, a grill, stone gravel, trees, and wooden fencing under a partly cloudy sky.

PIMLICO, SW1

Address: Pimlico, London

Size: 1,372 ft2

Existing EPC: Band D (upgraded to C)

A mid-terrace freehold in Pimlico, upgraded through Alchemi Renovations’ Gold Tier Project Management to improve EPC performance and boost saleability. Works included loft and cavity-wall insulation, refurbishment of existing double-glazed windows, light redecoration and a garden refresh, with staging and furnishing by Studio L (London).

Delivered in ~10 weeks for under £100k, it achieved EPC C (July 2023) and sold for £1.18m—£180k above the closest comparable on the terrace.

- Loft and cavity wall insulation.
- Refurbishment of existing double-glazed windows.

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.

Sustainable interior by Studio L London in Westminster Fire Station

Interiors Case Studies

DINING & KITCHEN

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.

- 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

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.

- 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

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.

- 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

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 guided a sympathetic renovation. We reinstated by recreating period elements like cast-iron stair spindles, plaster cornicing, limestone stairs and introduced discreet upgrades such as bespoke secondary glazing and LED lighting. The result: a home that retains its historic charm while meeting today’s comfort and efficiency standards.