Feilden+Mawson

What Feilden+Mawson does

Feilden+Mawson is a UK-headquartered architectural design practice founded in 1956, operating as Feilden+Mawson LLP under the Feilden+Mawson Group Ltd holding structure. The firm delivers full-service architecture across the RIBA Stages 1-7 lifecycle — concept, design, technical documentation, conservation, interior design, and project oversight — with specialist depth in heritage conservation, sustainable retrofit, and masterplanning. It serves central and local government, educational and research institutions, healthcare and science clients, residential developers, heritage bodies, and private clients, with notable mandates including the Palace of Westminster restoration programme, the UK Supreme Court conversion of Middlesex Guildhall, HM Treasury, Norwich Castle, Hampton Court Palace (90+ projects), and the University of Cambridge Entopia Building (EnerPHit, BREEAM Outstanding, WELL Gold).

Name

Feilden+Mawson

Legal name

Feilden+Mawson Group Ltd

Website

https://feildenandmawson.com

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

51–100 employees

Short description

Feilden+Mawson is a 1956-founded UK architectural practice delivering heritage conservation, sustainable retrofit, masterplanning, and interior design across RIBA Stages 1-7 for government, institutional, healthcare, education, and private clients from offices in London, Norwich, Cambridge, and Prague.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Interior Design Services (541410), Landscape Architectural Services (54132)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Historic Preservation & Conservation Planning (BPAHAKAH)

Keywords

• Architectural design services
• Heritage conservation
• Master planning
• Interior design
• Sustainable retrofit

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural and Design Services: Professional architectural services spanning RIBA Stages 1-7 including concept design, technical documentation, conservation consultancy, heritage advisory, interior design, and project oversight. Revenue generated through consultancy fees for residential, commercial, civic, educational, healthcare, conservation, and masterplanning projects.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Feilden+Mawson is a full-service architectural design practice delivering concept design, technical documentation, conservation, masterplanning, and interior design across RIBA Stages 1-7. The firm serves residential, commercial, civic, education, healthcare, hospitality, and heritage clients in the UK and Czech Republic, with a particular specialism in the sustainable retrofit of listed and historic buildings.

Product overview

Feilden+Mawson is a full-service architectural practice operating across four offices (London, Norwich, Cambridge, and Prague). The firm provides comprehensive architectural and design services organized around specialized sectors including Residential, Education, Science and Health, Public and Civic, Commercial, Hospitality and Culture, and Golf. Core offerings span architectural design, conservation of historic buildings, masterplanning, and interior design. The practice serves clients across the UK and Czech Republic, ranging from private homeowners and developers to government agencies, educational institutions, and healthcare organizations.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services
• Conservation Architecture
• Masterplanning
• Interior Design

Quantifiable outcome

• First Grade II listed building in UK to achieve Passivhaus EnerPHit standard (2 Gloucester Place Mews and 21 Gloucester Place)
• +6 more outcomes

Named customers20 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core and minor.

• FAM ArchitekticoreStrategic or Co-development PartnerFAM Architekti s.r.o. is Feilden+Mawson's Prague-based sister company and partner office, facilitating the firm's work in the Czech Republic. The partnership enables delivery of projects across Central Europe including the Brno University of Technology campus redevelopment, Litomysl Elderly Care Home, and various Prague-based masterplanning and urban realm projects.
• InteriorFMminorOthersRelated company linked on Feilden+Mawson website, providing interior facilities management services.

Scale indicators17 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Allies and Morrison: Established UK architectural practice combining newbuild, conservation and masterplanning with notable public-sector work. Closely mirrors Feilden+Mawson's mix of heritage retrofit, civic and residential commissions in London and the South East.
• Make Architects: UK-headquartered architectural practice working across commercial, residential, healthcare and civic sectors. Comparable scale and sector mix with Feilden+Mawson for commercial and mixed-use commissions.
• Donald Insall Associates: Long-standing UK conservation-led architecture practice with a deep heritage retrofit track record. Competes head-to-head for specialist Grade I/II listed-building consultancy and conservation design commissions similar to Feilden+Mawson's portfolio.
• Foster + Partners: Global UK-headquartered architectural practice with a deep heritage and conservation portfolio alongside large-scale newbuild. Directly competes with Feilden+Mawson for high-prestige public-sector and heritage commissions in the UK.
• WilkinsonEyre: Award-winning UK architecture practice with strong portfolios in civic, cultural and heritage sectors. Comparable mix of large-scale public projects and design-led commissions makes it a natural peer for Feilden+Mawson's public/civic pipeline.
• SimpsonHaugh: London-based architectural practice with significant residential, tall-building and heritage experience. Comparable scale and client base to Feilden+Mawson in mixed-use, residential and conservation-led urban projects.
• Haworth Tompkins: Mid-sized UK architectural practice with a strong reputation in heritage theatres, civic and education projects. Comparable service breadth across conservation, refurbishment and newbuild that competes for similar UK public-sector clients.
• Purcell: Specialist UK architectural practice focused on heritage, conservation and adaptive reuse of listed buildings. Among the closest direct competitors for Feilden+Mawson's heritage/conservation work at Grade I/II* assets such as Hampton Court and Palace of Westminster-adjacent commissions.

Broad incumbents

• BDP (Building Design Partnership): Large multi-disciplinary UK architectural and engineering practice with extensive healthcare, education and public-sector portfolios. Wider remit than Feilden+Mawson but a key competitor on similar civic, healthcare and education tenders.

Emerging players

• Studio Egret West: UK architectural practice with a sustainability-led, masterplanning-heavy portfolio. Partial overlap with Feilden+Mawson's conservation, masterplanning and residential design competencies for urban regeneration commissions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/FeildenMawson
• LinkedInlinkedin.com/company/feilden-mawson
• Instagraminstagram.com/feildenmawson

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 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 Feilden+Mawson