What Heat Architecture does

HEAT Architecture Ltd. is a London-based architectural practice founded in 2000 by Charles Humphries, operating from a headquarters at 86-90 Paul Street (EC2A 4NE) and a secondary office in Milan. The firm delivers residential architecture as its core service — new builds, refurbishments, extensions, and listed building conservation — alongside complementary practices in planning and conservation, interior design and bespoke furniture, retail, education, and hotel/hospitality design. Its competitive positioning is anchored in deep expertise in period properties and heritage planning, with a track record of "supreme victories" in difficult planning applications and a 2007 appeal that resulted in a full award of costs against the local council.

The business operates a professional services model, billing on a project-by-project basis with fees generated through architectural design, project management, and consultancy. Client segments span high-net-worth private individuals (primary), property developers (primary), and educational institutions (secondary). HEAT has completed over 150 residential projects since founding and maintains a strategic partnership with Milan-based Alhadeff Architects that has delivered 30+ international projects over a decade, giving the firm cross-border reach into Italy, Portugal, and Sweden. ISO 9001 quality registration has been held for over 10 years, and the practice has received industry recognition including the 2014 Wood Awards Small Project Award (Barnes) and a 2014 Galvanizers Association Award (Barnsbury). Distribution is direct-to-client, supported by a strong referral flywheel, press coverage in publications such as Grand Designs, House & Garden, and RIBA Journal, and a project portfolio website. The firm is privately held with no external institutional investment, no parent company, and no disclosed funding rounds.

Name

Heat Architecture

Legal name

HEAT Architecture Ltd.

Website

https://heat.design

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Architectural Services (541310), Interior Design Services (54141), Interior Design Services (541410)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Interior Design Services (BPAHAKAB)

Keywords

• Residential architecture services
• Listed building conservation
• Planning application management
• Interior design services
• Commercial architecture design

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Architectural Services: HEAT Architecture provides architectural design services for residential projects including new builds, refurbishments, extensions, and listed building conservation. Revenue is generated through professional fees for architectural services, project management, and design consultancy.

Distribution channels1 record

Marketing channels3 records

Core offering

HEAT Architecture is a London-based architectural practice providing design services for houses, apartments, beach houses, luxury homes, and developments, including new builds, refurbishments, and extensions. The firm specialises in managing planning applications and listed building consents, and also delivers interior design (bespoke furniture, kitchens, finishes), retail architecture, education architecture, and hotel/hospitality design. Projects are delivered by a dedicated team from inception through planning to completion, with the same team responsible from first viewing to final handover.

Product overview

HEAT Architecture is an architectural practice offering a comprehensive suite of design services. The firm specializes in residential architecture (houses, apartments, luxury homes, beach houses, developments), planning and conservation services (managing planning applications and listed building consent), interior design, retail architecture, education architecture, and hotel/hospitality design. The practice has a strategic partnership with Alhadeff Architects in Milan for international projects. Projects span new builds and complete refurbishments, with particular expertise in period properties, listed buildings, and conservation areas.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architecture Services Full architectural design for houses, apartments, beach houses, luxury homes, and developments, including new builds and refurbishments of period properties. Targeted at homeowners, developers, and high-net-worth private clients commissioning bespoke residential projects.
• Planning and Conservation Services
• Interior Design Bespoke interior design service covering custom furniture, kitchen design, and finishes specification for residential and commercial interiors.
• Retail Architecture Architectural and interior design for commercial retail spaces, including shopfronts, stores, and boutique interiors, for retail and fashion clients.
• Education Architecture Architectural services for schools, colleges, and educational facilities including masterplanning, refurbishments, expansions, and new builds.
• Hotel and Hospitality Architecture Design services for hotels, spas, restaurants, and leisure facilities, delivered directly by HEAT and through the Alhadeff Architects partnership.

Named customers7 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Alhadeff ArchitectscoreStrategic or Co-development Partner · 1 January 2010Strategic partnership with Alhadeff Architects, an internationally renowned design studio based in Milan. This collaboration has been running for over ten years and encompasses over 30 international projects for developers, corporations and private clients. The partnership provides access to architectural resources and expertise in urban planning, landscape design, and sophisticated Italian craftsmanship and detailing.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Jamie Fobert Architects: Boutique London practice focused on high-end residential and cultural architecture. Comparable in scale, client profile (HNW private clients), and design-led approach.
• Levitt Bernstein: London architecture practice with strong residential and education portfolios, including conservation and social-housing work. Comparable in client mix and London-centric operating model.
• Carmody Groarke: London architecture studio of comparable size delivering residential, cultural, and heritage work. Shares HEAT's blend of contemporary design with conservation expertise.
• Stanton Williams: London architecture practice with award-winning work in residential, education, and cultural sectors. Similar scale and client mix, including sensitive conservation and new-build commissions.
• Allies and Morrison: Established London architectural practice with strong residential, education, and heritage/listed-building expertise across the capital. Directly comparable in client base, design philosophy, and project types.
• Caruso St John: London-based practice known for combining contemporary design with conservation work on period and listed buildings. Closely aligned with HEAT's contemporary-meets-heritage positioning.
• Duggan Morris Architects: London-based practice of similar size delivering residential, education, and cultural projects. Comparable in scale, design ethos, and award-winning positioning.
• Niall McLaughlin Architects: Boutique London/Irish practice with deep experience in sensitive residential, heritage, and institutional projects. Comparable in scale, conservation expertise, and award recognition.

Broad incumbents

• Squire & Partners: Larger London architecture practice with substantial prime-residential and mixed-use development work. Overlaps with HEAT on high-end London residential and developer clients, but at materially greater scale.
• David Chipperfield Architects: Internationally renowned London-headquartered practice with significant heritage and listed-building work. Significantly larger, but operates in the same conservation-led residential/institutional niche.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Heat Architecture