What Tasou Associates does

Tasou Associates is a London-based RIBA chartered architecture and structural engineering practice founded in 1988 by brothers Tom and Paul Tasou. The firm delivers integrated architectural and structural engineering services across private residential, housing developer, commercial, and mixed-use schemes in London and South East England, with particular specialization in heritage buildings, conservation areas, and high-sustainability outcomes including Passivhaus, EnerPHit, and BREEAM certification levels.

The practice operates a fabric-first design methodology built around high-quality insulation, airtight construction, mechanical ventilation with heat recovery (MVHR), air-source heat pumps, photovoltaic panels, rainwater harvesting, and blue roof sustainable drainage systems. This technical foundation underpins a portfolio of completed projects including Jeffrey's Place (2018), Canal Houses (2020), Swain's Lane (2020), Chadwell Mews and Sunken House (2022), Tower Hill Studios (2023, BREEAM Excellent), Barkham Farm (2024), St Pancras Way (2024), and Clerkenwell House (2025), with Eden House currently on the drawing board. Recent work has earned shortlists at the AJ Architecture Awards and Dezeen Awards, and the team includes a Certified Passive House Designer.

Revenue is generated primarily through professional design fees on a project-by-project basis, with direct client engagement from inception to completion. Distribution is regional, focused on London boroughs and selected South East sites, supported by a portfolio website, social channels, and event participation such as Clerkenwell Design Week and the Open House Festival. The firm additionally offers two desk spaces for rent in its Clerkenwell studio at £400 per month as a minor ancillary revenue stream. Tasou Associates is a founder-owned private limited company registered in England with no disclosed external investors or parent ownership.

Name

Tasou Associates

Legal name

Tasou Associates Limited

Website

https://tasou.co.uk

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

11–50 employees

Short description

Tasou Associates is a London-based RIBA chartered architecture and structural engineering practice founded in 1988, delivering sustainable, heritage-sensitive design for private residential, housing developer, commercial, and mixed-use clients across London and South East England.

Ownership category

akta.pro rank

Product category

Architectural Design Services

NAICS

Architectural, Engineering, and Related Services (5413), Engineering Services (541330), Interior Design Services (54141)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industries

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Hospitality & Entertainment Venue Construction (IMAFACAC)

Keywords

• Architectural design services
• Structural engineering services
• Sustainable building design
• Heritage conservation architecture
• Residential mixed-use development

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. Architecture and Design Services: Full-service architecture firm providing design services from inception to completion across residential, commercial, and mixed-use projects. Revenue generated through professional design fees for planning, design development, and project delivery.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Tasou Associates is an award-winning RIBA chartered architecture and structural engineering studio delivering full-service design from inception to completion across private residential, housing, commercial, and mixed-use schemes. The practice applies a fabric-first sustainability approach, targeting Passivhaus, EnerPHit, and BREEAM standards, and combines integrated structural engineering expertise with deep specialism in heritage building conservation.

Product overview

Tasou Associates is an award-winning RIBA chartered architecture and structural engineering studio founded in 1988 by Tom and Paul Tasou. The firm operates as a single integrated practice offering architectural design and structural engineering services across private residential, housing, commercial, and mixed-use schemes. Their portfolio includes completed projects such as Jeffrey's Place (2018), Canal Houses (2020), Swain's Lane (2020), Chadwell Mews (2022), Sunken House (2022), Tower Hill Studios (2023), Barkham Farm (2024), and St Pancras Way (2024), as well as projects on the drawing board like Eden House. The studio specializes in sustainable design achieving Passivhaus, EnerPHit, and BREEAM standards, with significant expertise in heritage and conservation projects. Additionally, they offer ancillary services including flexible desk space rental in their Clerkenwell studio.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Full-service architectural design covering private residential, housing, commercial, and mixed-use schemes, delivered with a fabric-first approach to sustainability from inception to completion. For private homeowners, housing developers, commercial developers, and mixed-use clients.
• Structural Engineering Services Integrated structural engineering services delivered by Paul Tasou, Founding Director and Structural Engineer, providing clients with combined architecture and structural engineering design under a single contract. For developers and clients requiring integrated building design.
• Heritage and Conservation Design Services Specialist expertise delivering design for projects in conservation areas and on heritage/listed buildings, with sensitivity to historical fabric and regulatory frameworks. For private owners of listed or conservation-area properties, heritage developers, and institutional clients.
• Sustainable Design Services (Passivhaus / EnerPHit / BREEAM) Sustainability-focused design achieving Passivhaus, EnerPHit, and BREEAM certifications through a fabric-first approach, energy-efficiency specification, and embodied-carbon material selection. For developers, commercial clients, and private homeowners seeking certified low-energy and high-sustainability buildings.
• Desk Space Rental (Clerkenwell Studio) Flexible workspace rental offering two desks in the Clerkenwell studio at £400 per month per desk, including high-speed internet, reception space, two meeting rooms, shared kitchen, and bike storage near Exmouth Market. For independent professionals and small teams seeking a Clerkenwell design-district workspace.

Quantifiable outcome

• BREEAM Excellent rating achieved on Tower Hill Studios mixed-use development
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered minor and core.

• CBREminorOthers · 1 January 2025CBRE hosts the Great Property Bike Ride 2025 charity event. Tasou Associates director Daniel Morris is participating to raise funds for Alzheimer's Society.
• WästbergminorGTM or Marketing Partner · 1 January 2024Lighting partner for Clerkenwell Design Week 2024, exhibiting latest light fittings in the Tasou Associates studio.
• Wever & DucréminorGTM or Marketing Partner · 1 January 2024Lighting partner for Clerkenwell Design Week 2024, exhibiting latest light fittings in the studio alongside Wästberg.
• Bob WcoreStrategic or Co-development Partner · 1 January 2023Worked closely with hotel operator Bob W and their interior design team to deliver high-quality serviced apartment rooms at Tower Hill Studios. All rooms feature en-suite bathrooms and small kitchenettes.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Cullinan Studio: London architecture practice with strong sustainability, Passivhaus, and conservation credentials. Directly comparable sustainability positioning and heritage project experience, with similar approach to fabric-first design.
• Proctor & Matthews: London architecture practice focused on residential, heritage, and conservation work with sustainability credentials. Comparable in niche specialization (heritage + sustainability), client base (private residential and developers), and project scale.
• Haworth Tompkins: Award-winning London architecture practice working across theatre, housing, and conservation. Comparable in scale, award recognition profile, and London-based private and institutional client work.
• Mikhail Riches: London-based architecture practice with deep Passivhaus and sustainability credentials, specializing in housing and residential schemes. Highly comparable in scale, sustainability positioning, and London focus, and is a direct competitor on sustainable residential briefs.
• Karakusevic Carson Architects: London practice specializing in housing, mixed-use, and masterplanning. Comparable on residential and mixed-use project types, London geographic focus, and developer client base; competes on similar private residential and housing briefs.
• Featherstone Young: London architecture practice with heritage, residential, and sustainability focus. Comparable in scale, London heritage/residential specialization, and sustainability credentials.
• Levitt Bernstein: London architecture practice with combined architecture, landscape, and urban design, focused on housing and sustainability. Comparable on housing developer clients, sustainability credentials, and London footprint.
• Pollard Thomas Edwards: London architecture practice with major housing, regeneration, and mixed-use portfolio. Comparable in residential/mixed-use project mix, London geographic concentration, and developer client relationships.

Broad incumbents

• Allies and Morrison: Larger established London architecture practice working across residential, commercial, and heritage projects. Comparable project categories but materially larger scale and broader portfolio; competes on heritage and mixed-use briefs.
• John McAslan + Partners: Established London architecture practice with portfolio spanning cultural, residential, and heritage projects. Comparable on heritage/conservation work and London-based mixed-use projects, but operates at a broader and larger scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tasouassociates
• Instagraminstagram.com/tasouassociates
• Pinterestpinterest.co.uk/tasouassociates
• Xx.com/tasouassociates

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Tasou Associates