Richard Griffiths Architects Limited

What Richard Griffiths Architects Limited does

Richard Griffiths Architects Limited (RGA) is a privately held specialist architecture practice headquartered at 6 Queen Square, London, focused on the repair, conservation, restoration, refurbishment and adaptive reuse of historic buildings, alongside sensitive new architecture within historic contexts. The firm operates under the philosophy 'Old Buildings, New Architecture', working across Grade I, II and II* listed assets including cathedrals (St Albans, Southwark), country houses (Sutton House, Burghley), civic buildings (Tower Hamlets Town Hall, College of Arms, Custom House), independent schools (Brighton College, Bedales), and major inner-urban regeneration schemes (St Pancras Hotel, Oxford Castle Quarter, London Docks).

The practice offers a unified portfolio spanning core architectural services (architecture, refurbishment, restoration, retrofit, new architecture, public buildings) and specialised heritage consultancy (masterplanning, conservation advice, conservation management plans, heritage impact assessments, planning and consents, contract administration, feasibility studies, funding advice, public consultation, interior design and furniture design). Service delivery relies on direct client appointments secured through reputation, tender processes, and referrals within the heritage and conservation sector, with projects awarded on the basis of specialist expertise rather than competitive pricing. The firm is founder-led by Richard Griffiths, whose personal tenure as Cathedral Architect for Southwark Cathedral (1997–2012) and 17-year Surveyorship of St Albans Cathedral underpins the practice's institutional standing.

RGA is a professional services firm operating on a quote-based, project-by-project fee model. Customers span five vertical segments: heritage properties and historic buildings (primary), religious institutions including cathedrals and churches (primary), educational institutions, government and public sector clients, and commercial developers undertaking heritage regeneration. The practice generates revenue through design fees, contract administration, and project management services on historic building projects, with no disclosed productised or recurring revenue streams. Headcount is reported at 1–10 employees, consistent with a boutique specialist practice. No external funding, parent company, or investment is present in the record.

Name

Richard Griffiths Architects Limited

Legal name

Richard Griffiths Architects Limited

Website

https://rgarchitects.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Richard Griffiths Architects (RGA) is a London-based specialist practice focused on the conservation, restoration, refurbishment and adaptive reuse of listed historic buildings, serving cathedrals, churches, schools, civic bodies, and heritage trusts across the UK.

Ownership category

akta.pro rank

Product category

Heritage Architecture Services

NAICS

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

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Historic Preservation & Conservation Planning (BPAHAKAH), Interior Design Services (BPAHAKAB), Historic Home Renovation & Preservation (HSAPAEAG)

Keywords

• Heritage architecture services
• Historic building restoration
• Conservation architecture
• Listed building consultancy
• Adaptive reuse design

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Architectural Services: Professional fees for architecture, conservation, restoration, and heritage consultancy services on a project-by-project basis. Revenue is generated through design fees, contract administration, and project management services for historic building projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Richard Griffiths Architects is a London-based architectural practice providing specialist heritage conservation, refurbishment, restoration, retrofit, and new architecture services for historic buildings. The practice delivers full architectural services from feasibility through contract administration, alongside heritage consultancy including conservation management plans, heritage impact assessments, planning and consents, funding advice, and conservation guidance. Work spans cathedrals, churches, historic houses, schools, civic buildings, and major adaptive reuse projects across the UK.

Product overview

Richard Griffiths Architects Limited (RGA) is a traditional architectural practice offering a unified portfolio of design and conservation services. The core offering comprises architecture, refurbishment, restoration, retrofit, and new architecture services, supported by specialized heritage consultancy services including conservation advice, masterplanning, heritage impact assessments, planning & consents, contract administration, feasibility studies, funding advice, public consultation, and conservation management planning. Additional services include interior design, furniture and fittings design, and sustainability consulting. The practice demonstrates particular expertise through its award-winning project portfolio including historic houses (Sutton House, Burghley), public buildings (Clissold House, Eastbury Manor), schools (Bedales, Brighton College), churches and cathedrals (Southwark Cathedral, St Albans Cathedral), and major renewal projects (London Docks, St Pancras Hotel). The firm operates from 6 Queen Square, London WC1N 3AT.

Differentiator

Problem solved

Functional benefit

Products and services

• Heritage Architecture Services Comprehensive architectural design services for historic buildings, new construction, and adaptive reuse projects, delivered for owners of listed buildings, religious institutions, educational bodies, government, and commercial developers across the UK.
• Refurbishment and Restoration Services Specialized building refurbishment and restoration services including structural repair, cleaning, repointing, paint stripping, tuck pointing, and conservation of architectural fabric to return historic structures to authentic condition while upgrading performance.
• Heritage Consultancy Expert heritage advisory services including conservation management plans (CMPs), heritage impact assessments, conservation advice, funding advice (NLHF/lottery), planning and listed building consent applications, public consultation, and feasibility studies for heritage assets.
• Masterplanning and Urban Regeneration Strategic masterplanning services for heritage sites and historic urban areas, coordinating development, regeneration, and the creative juxtaposition of historic and new buildings within run-down inner urban contexts.
• Retrofit and Sustainability Services Energy-efficient retrofitting and sustainability services improving environmental performance, energy efficiency, and climate resilience of historic and existing buildings while maintaining heritage values.
• Interior Design and Bespoke Furniture Interior design, spatial planning, finishes, furnishings, fittings, and custom furniture design services appropriate to historic interiors and architectural character.

Quantifiable outcome

• RIBA London Building of the Year 2025 for Tower Hamlets Town Hall
• +3 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Six partnerships are on record, tiered core and minor.

• AHMM (Allies and Morrison)coreStrategic or Co-development PartnerRGA acted as conservation architects alongside AHMM (Allies and Morrison) on the Tower Hamlets Town Hall redevelopment project. RGA handled heritage repair, conservation, and restoration of the listed building while AHMM led the overall design and architectural delivery.
• Alan Baxter & AssociatescoreStrategic or Co-development PartnerWorking in conjunction with Alan Baxter & Associates for the Oxford Castle Quarter regeneration. RGA provided historic building and conservation consultancy alongside Alan Baxter's structural engineering expertise for this 1.2 hectare regeneration project.
• ADP (Architects Design Partnership)coreStrategic or Co-development PartnerWorking in conjunction with ADP for the Oxford Castle Quarter regeneration project as part of a multi-disciplinary team delivering the major regeneration of the former prison site.
• Dixon Jones ArchitectscoreStrategic or Co-development PartnerWorking in conjunction with Dixon Jones Architects for the Oxford Castle Quarter regeneration. Dixon Jones led the masterplanning aspects while RGA provided heritage and conservation expertise.
• RHWLcoreStrategic or Co-development PartnerRGA was appointed as joint architects with RHWL for the St Pancras Hotel restoration project. RGA designed the major public areas and new hotel wing while RHWL contributed to the overall hotel design.
• St George (Developer)minorStrategic or Co-development PartnerRGA worked with St George as client for the London Docks Pennington Street Warehouse restoration, providing conservation architecture services for the adaptive reuse of this historic warehouse.

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Allies and Morrison: Major London practice with broad portfolio in heritage, civic, and contemporary architecture. Partnered with RGA as lead architect on Tower Hamlets Town Hall, illustrating both firms' overlap on landmark civic schemes and Allies and Morrison's role as the larger incumbent.
• John McAslan + Partners: International practice with significant heritage and conservation portfolio including the RIBA Award-winning refurbishment of the Roundhouse. Competes with RGA on heritage adaptive reuse at a much larger scale.

Direct peers

• Purcell Architecture: Major UK heritage and conservation architecture practice working on cathedrals, castles, and civic heritage. Like RGA, deeply specialist in listed building work and Cathedral Surveyor roles, but with national footprint and significantly larger headcount.
• Haworth Tompkins: London practice with extensive heritage conservation experience combined with new-build work in historic settings (e.g., Battersea Arts Centre, Theatre Royal Brighton). Comparable mid-sized specialist competing for similar award-winning heritage commissions.
• Feilden+Mawson: UK heritage and conservation architecture firm with strong portfolio in cathedral, educational, and ecclesiastical work. Directly comparable service offering to RGA, including listed building consent and heritage consultancy.
• Donald Insall Associates: The UK's largest dedicated heritage architecture practice, founded 1958, providing conservation, repair, and adaptive reuse of listed and historic buildings. Directly comparable to RGA in specialist heritage focus and Cathedral/civic client base, but at substantially greater scale.
• Stanton Williams: London architecture practice with deep experience in heritage-sensitive cultural, civic, and educational projects (e.g., UCL, Royal College of Art, Cambridge). Competes with RGA for landmark civic and education commissions.
• Buttress Architects: Manchester-based heritage architecture practice with RIBA award-winning heritage and conservation portfolio. Directly comparable service mix including restoration, adaptive reuse, and heritage consultancy, with similar firm size.
• Lathams Architects: UK practice specializing in conservation and refurbishment of historic buildings, including ecclesiastical and heritage work. Comparable smaller specialist competing for similar heritage and conservation commissions.
• Caruso St John: London-based architectural practice known for combining rigorous conservation with contemporary design in historic contexts (e.g., Tate Britain, Royal Academy). Shares RGA's 'Old Buildings, New Architecture' ethos and award-winning London heritage portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/rgarchitects_
• LinkedInlinkedin.com/company/rgarchitects

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 →

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