LJA

What LJA does

LJA (Leslie Jones Architects) is a London-headquartered, RIBA Chartered architecture and urban design practice founded in 1945, operating as Leslie Jones Architecture Ltd., a privately held UK company. The firm delivers full-service architectural design, masterplanning, and interior design across RIBA Stages 0–7 for clients in retail, residential, aviation, leisure, workplace, and mixed-use developments, with a particular emphasis on town-centre regeneration and shopping-centre repositioning. Its core technology stack is built on Autodesk Revit and AutoCAD, supplemented by parametric and 3D digital design tools used for bespoke elements such as the Metrocentre pebble seating (developed with Raskl). The practice holds sector-recognised credentials including RIBA Chartered status and Certified European Passive House Designer qualifications held by senior staff.

LJA serves two principal customer segments: enterprise real estate developers, investors, and asset managers (Sovereign Centros, Quintain, Redevco, Schroders Capital, Heathrow Airports Ltd, Hong Kong International Airport, Flughafen Düsseldorf, The Earls Court Development Company, Reef Group, McKinney Group) and local/central government bodies (Portsmouth City Council, Cherwell District Council, Fareham Borough Council, Luton 2020 Developments). Revenue is generated through professional services fees billed on a project-by-project basis, with engagements ranging from initial concept through construction administration. The firm operates a relationship-driven, enterprise-field-sales GTM supported by industry event presence (MIPIM, UKREiiF, MAPIC, Footprint+), thought-leadership content via its website journal, and community consultation integral to planning consents.

Commercially, LJA is a small-to-mid-sized practice with 11–50 employees, no disclosed external funding, and no acquisition history. It maintains its only disclosed office at 55 Baker Street, London, and serves clients across the UK, Qatar, Hong Kong, Germany, and (as of 2025) Greece. Strategic positioning rests on a people-first design philosophy, deep retail-regeneration expertise, aviation-retail-strategy capability at global airports, and RetroFirst sustainability credentials (BREEAM, WELL, Passivhaus).

Name

LJA

Legal name

Leslie Jones Architecture Ltd.

Website

https://lesliejones.co.uk

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

11–50 employees

Short description

LJA (Leslie Jones Architects) is a London-based RIBA Chartered architecture practice founded in 1945, delivering design and masterplanning services across retail regeneration, urban regeneration, residential, and aviation sectors for developers, local authorities, and airport operators in the UK and internationally.

Ownership category

akta.pro rank

Product category

Architectural and Masterplanning Services

NAICS

Professional, Scientific, and Technical Services (541), Interior Design Services (541410)

akta.pro primary industry

Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)

akta.pro secondary industries

Commercial Interior Fit-Out (Offices & Corporate) (IMAFANAA), Workplace Strategy & Space Standards (BPABAFAA)

Keywords

• Architectural design services
• Urban masterplanning
• Retail regeneration design
• Mixed-use development
• Aviation retail consultancy

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, Technology or R&D, Infrastructure

Revenue model

1. Architectural and Masterplanning Services: LJA earns revenue through fees for architectural design, masterplanning, and interior design services on major UK and international projects. Services are billed on a project-by-project basis, typically for mixed-use, retail, residential, leisure, and aviation developments. Engagements range from initial concept through to construction delivery across RIBA Stages 0–7.

Go-to-market motion3 records

Distribution channels3 records

Marketing channels8 records

Core offering

LJA is a RIBA Chartered architecture practice that delivers architectural design, masterplanning, interior design, and retail strategy services for major UK and international projects. The firm delivers services across RIBA Stages 0–7 covering concept, design, technical delivery, and construction administration, with sector specialisms in retail regeneration, mixed-use town centre development, residential-led masterplanning, aviation commercial strategy, and workplace design. Engagements are project-based commissions typically for large developers, local authorities, institutional investors, and airport operators.

Product overview

LJA (Leslie Jones Architects) is a RIBA Chartered architecture practice offering comprehensive architectural design services across retail, leisure, mixed-use, residential, aviation, and masterplanning sectors. The firm operates as a traditional architectural services provider rather than a software product company, delivering projects from concept through construction across major UK towns and cities and international airport commissions. Key service areas include retail and shopping centre regeneration, urban masterplanning, aviation consultancy, and sustainable design. Notable projects include the Metrocentre transformation, Wembley Park retail curation, St Enoch Glasgow masterplan, and airport work at Heathrow, Hong Kong, Doha, and Düsseldorf.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Full-service architectural design covering retail, leisure, mixed-use, residential, and commercial projects from concept through construction, delivered across RIBA Stages 0-7 for enterprise clients.
• Masterplanning Services Large-scale urban planning and regeneration masterplans for town centres, shopping centres, and mixed-use districts, delivered for local authorities and developers across the UK.
• Retail Strategy and Commercial Masterplanning Retail strategy and commercial masterplanning for airports, shopping centres, and mixed-use developments, including tenant mix curation, retail design, and commercial performance optimisation.
• Aviation Retail and Passenger Experience Consulting Specialised aviation retail strategy and commercial masterplanning for major airports worldwide, including Hamad International Airport, Hong Kong International Airport, Düsseldorf Airport, and Heathrow.
• RetroFirst and Sustainable Design Services Retro-first design methodology retaining and refurbishing existing building fabric to reduce embodied carbon, with in-house capability for BREEAM, WELL, Passivhaus, and BEAM Plus sustainability accreditation delivery.
• Retail Curation Services Ongoing retail curation managing tenant mix across mixed-use estates such as Wembley Park's four retail districts, acting as custodian of the ground floor plane for long-term clients.

Quantifiable outcome

• Over 7 million visitors per year attracted to London Designer Outlet, Wembley Park
• +4 more outcomes

Named customers19 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

16 partnerships are on record, tiered minor and core.

• CundallminorStrategic or Co-development Partner · 1 January 2024Cundall hosted a regenerative design breakfast event where LJA participated in a presentation and discussion on 'the journey from net zero to regenerative design.' The firms share sustainability expertise and have collaborated on projects including Metrocentre, Gateshead.
• QuintaincoreStrategic or Co-development Partner · 1 January 2004LJA has maintained a near-20-year partnership with Quintain since 2004, developing the retail masterplan and delivering multiple flagship buildings at Wembley Park — one of London's largest regeneration schemes. LJA also provides ongoing retail curation services for the estate as custodians of the ground floor plane.
• Sovereign CentroscoreStrategic or Co-development PartnerSovereign Centros is one of LJA's key clients, engaging the practice on major retail regeneration projects including the Metrocentre Gateshead transformation and St. Enoch Glasgow masterplan. LJA works closely with Sovereign Centros as design partner on repositioning and diversifying tired shopping centres into mixed-use destinations.
• RedevcocoreStrategic or Co-development PartnerRedevco appointed LJA as architects for the comprehensive refurbishment of One James Street, London — a 66,340 sq ft commercial destination facing Oxford Street targeting WELL Platinum certification. The project involves Cat A+ refurbishment, enhanced facades, rooftop extension, and sustainable design.
• Schroders CapitalcoreStrategic or Co-development PartnerSchroders Capital appointed LJA for Trafalgar Place, Brighton — a 30,000 sq ft workplace development with rooftop extensions targeting BREEAM Excellent, WELL Building Standard and Life Carbon Analysis.
• Cherwell District CouncilcoreStrategic or Co-development PartnerCherwell District Council engaged LJA as architects for Castle Quay Waterfront, Banbury — a 166,450 sq ft mixed-use canal-side destination including hotel, cinema, food store, and leisure. LJA has been involved from concept through to construction delivery.
• Luton 2020 Developments (property arm of Luton Town Football Club)coreStrategic or Co-development PartnerLuton 2020 Developments appointed LJA for Newlands Park, Luton — a 40-acre mixed-use development with workplace, logistics, and retail, projected to create 4,000 jobs and contribute £240 million annually to the local economy.
• Portsmouth City CouncilcoreStrategic or Co-development PartnerPortsmouth City Council is the client for LJA's City Centre North masterplan (2,000 homes, 30,000m2 commercial/leisure space) and Phase 1 (550 homes). LJA is working on what is intended to be the UK's most sustainable neighbourhood.
• Faithdean, TFT, Heyne Tillett Steel, Scotch Partners, Jensen Hughes, Harwood Building Control, Tonik Edge, ILECS Lift & Escalator Consultants, Trustek, Total Facade Solutions Ltd, Leslie Clark, SavillsminorImplementation/ SI/ Consulting PartnerFor One James Street, London, LJA is working with a team of specialist consultants including Faithdean (main contractor), TFT (quantity surveying), Heyne Tillett Steel (structural engineering), Scotch Partners (façade), Jensen Hughes (fire engineering), Harwood Building Control, Tonik Edge, ILECS (lifts), Trustek, Total Facade Solutions, Leslie Clark, and Savills.
• CBREminorImplementation/ SI/ Consulting PartnerCBRE acted as lead adviser to Sovereign Centros on the Ashley Centre, Epsom refurbishment where LJA was appointed as architects. CBRE also represents Sovereign Centros on other mandates.
• JLLminorStrategic or Co-development PartnerJLL invited James Cons (LJA Managing Director) to speak on a panel at UKREiiF debating 'Rebuild or Reuse.' JLL is also working with LJA on Earls Court place-making strategy.
• RivingtonHarkcoreStrategic or Co-development PartnerLJA was appointed by Fareham Borough Council working with RivingtonHark to develop a town centre regeneration plan for Fareham Shopping Centre. LJA draws on its masterplanning and asset management experience in this collaboration.
• The Yard CreativeminorChannel Partner/ Reseller/ DistributorThe Yard Creative is LJA's sister company. The two firms participated together in Movember fundraising activities and share collaborative links.
• Movers & Shakers and RevominorStrategic or Co-development PartnerNick Strachan (LJA Director) attended a Movers & Shakers breakfast event in collaboration with Revo (retail property community) at The Savoy, discussing the future of UK retail assets. These industry groups facilitate knowledge sharing and networking for LJA.
• Iceni Projects, LDA Design, SHW, Redwood ConsultingminorImplementation/ SI/ Consulting PartnerFor Trafalgar Place, Brighton, LJA collaborates with Iceni Projects (planning), LDA Design (landscape architecture), SHW (planning consultancy), and Redwood Consulting (PR/communications) on the consultation and planning process.
• Oxford Brookes University School of ArchitectureminorStrategic or Co-development PartnerLJA sponsors The Leslie Jones Prize for Second Year Undergraduate and The Leslie Jones Construction Prize at Oxford Brooks University, and offers summer placements to award winners. LJA Directors serve on the judging panel.

Scale indicators12 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• Benoy: UK-headquartered international architecture and masterplanning practice with strong retail, mixed-use, and aviation credentials. Closely comparable to LJA in scale, sector focus, and client base (developers, retail operators, and airports).
• Chapman Taylor: Architectural practice specialising in retail, leisure, and mixed-use regeneration with global project delivery. Directly competes with LJA on shopping centre repositioning and masterplanning mandates in the UK and internationally.
• Broadway Malyan: International architecture, urbanism, and design practice with deep UK retail and town centre regeneration experience. Comparable to LJA in mixed-use, retail repositioning, and aviation-adjacent projects.
• Grimshaw: Global architecture practice with major aviation specialism (including Heathrow, where LJA acts as a sub-consultant on retail strategy). Direct peer in aviation retail design and a comparable scale partner on complex infrastructure projects.
• CallisonRTKL: Global architecture and design firm with strong retail, mixed-use, and aviation retail practices. Closely comparable to LJA in retail strategy, commercial masterplanning, and international airport commercial design.
• Allies and Morrison: UK architecture and urbanism practice with significant masterplanning and mixed-use expertise. Comparable to LJA on town centre regeneration, residential-led masterplans, and developer-led urban projects.
• JTP (John Thompson & Partners): UK architectural practice with strong placemaking, residential-led masterplanning, and public sector credentials. Comparable to LJA on community-led regeneration and large-scale mixed-use schemes.

Broad incumbents

• BDP (Building Design Partnership): Large multidisciplinary UK architecture practice with extensive town centre regeneration, masterplanning, and aviation portfolios. Larger than LJA but competes for similar local authority and developer regeneration commissions.
• Foster + Partners: Global architecture leader with extensive aviation, masterplanning, and mixed-use portfolios. A larger incumbent that competes for high-profile aviation and urban regeneration commissions where LJA also operates.
• Gensler: Global architecture and design firm with extensive retail, aviation, and commercial interior practices. Larger broad incumbent whose aviation retail and workplace strategies overlap with LJA's service offering.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/lesliejonesarch
• LinkedInlinkedin.com/company/leslie-jones-architects-limited

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 LJA