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Portfolio of Execution

Where drawing sets become architectural reality.

Each project represents a bespoke collaboration with a high-end interior designer or design studio. We operate with strict discretion, protecting design intent across London’s most demanding enclaves.

Chelsea Townhouse - Grade II Listed Georgian Restoration & Subterranean Extension
Historic & Listed
Chelsea, London 2025

Chelsea Townhouse

A meticulously executed restoration of a 5-storey Georgian townhouse on Cheyne Walk. Harris & Williams acted as white-label contractor to conceal complete modern climate control and structural floor levelling while preserving 18th-century plaster cornices.

Studio: Studio Vane Interiors View Case Study
Mayfair Penthouse Suite - Duplex Penthouse Fit-Out with Cantilevered Bronze Staircase
Penthouses
Mayfair, London 2024

Mayfair Penthouse Suite

A turnkey duplex penthouse overlooking Mount Street Gardens. High-density coordination involving Westminster crane road closures, crane lift of 4.5m bronze stair stringers, and a comprehensive white-glove site delivery.

Studio: Atelier Saint-Honoré London View Case Study
Belgravia Private Residence - Comprehensive Regency Villa Reconfiguration & Wellness Suite
Prime Residential
Belgravia, London 2024

Belgravia Private Residence

A complete internal rebuild behind a grand classical Belgravia facade. Harris & Williams executed the deep basement formation, sub-surface waterproofing, swimming pool plant room, and all high-precision interior finishes.

Studio: Grosvenor & Grey Interiors View Case Study
Cotswolds Historic Manor - 17th-Century Stone Manor & Modern Glass Pavilion Extension
Country Estates
Chipping Campden, Gloucestershire 2023

Cotswolds Historic Manor

A sweeping country estate restoration marrying a 17th-century Jacobean manor with an ultra-contemporary structural glass pavilion. Completely off-grid sustainable energy integration concealed within historic outbuildings.

Studio: Kellingford Studio View Case Study
Marylebone Mews House - Bespoke Architectural Rebuild with Lightwell & Cantilevered Steel
Prime Residential
Marylebone, London 2024

Marylebone Mews House

A jewel-box urban residence within a quiet Marylebone mews. Harris & Williams cut a continuous lightwell through three floors, bringing natural daylight into subterranean bedrooms and living spaces.

Studio: Form & Atmosphere Architects View Case Study
Commercial Discretion

Looking for confidential private client references?

Due to non-disclosure agreements with royal, diplomatic, and private clients, many of our most complex residential commissions cannot be published publicly. Full physical portfolios are available during confidential studio consultations.

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