What Studio 303 does

Studio 303 is a UK-based architectural practice founded in 2003 by three partners — Paul Sweeney, Steve Badger, and Rebecca Dixon — delivering integrated architecture, project management, interior design, and CDM Principal Designer services. Its client base spans residential and commercial sectors, with project construction values ranging from £100,000 to over £5,000,000. Completed projects include a fit-out for Rabobank (Dutch bank), evidencing capacity to deliver enterprise-grade commercial work alongside residential commissions. The portfolio also extends into mixed-use, hotel, and advertising structure categories.

The practice operates across multiple UK regions — London, the home counties, Yorkshire, Suffolk, and Shropshire — indicating a deliberately distributed geographic footprint rather than a single-city model. By bundling CDM Principal Designer (a regulated health-and-safety role) with core architectural services, the firm offers clients a single-source delivery model that reduces coordination friction. This integrated offering is the primary commercial differentiator versus single-discipline architectural competitors.

The business model is project-based professional services: revenue is earned on a fee basis tied to individual construction projects, with no disclosed retainer, framework, or subscription component. No headcount, fee income, or financial disclosures are available. No AI/ML, proprietary technology, or data assets are referenced; the value proposition rests on partner-led design judgement and multi-disciplinary delivery rather than scalable automation. No funding rounds, acquisitions, partnerships beyond client engagements, awards, or regulatory milestones are documented in the available material.

Name

Studio 303

Legal name

Studio 303 Ltd

Website

https://studio303.co.uk

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

1–10 employees

Short description

Studio 303 is a UK architectural practice founded in 2003 by three partners, delivering integrated architecture, project management, interior design, and CDM Principal Designer services for residential and commercial projects across multiple UK regions.

Ownership category

akta.pro rank

Headquarters

HQ city

Westerham

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Core offering

Studio 303 is an architectural practice that provides integrated architectural design, project management, interior design, and CDM Principle Designer services for residential and commercial projects. The firm manages all aspects of a project from initial feasibility through planning, design, and construction completion, with project values ranging from £100,000 to £5,000,000+.

Product overview

Studio 303 is a small to medium-sized architectural practice offering an integrated service combining architectural design, project management, interior design, and CDM Principle Designer services. Founded in 2003 by Paul Sweeney, Steve Badger, and Rebecca Dixon, the practice focuses on residential and commercial projects valued between £100,000 and £5,000,000+. Their portfolio spans diverse project types including luxury private residences (Shenoval, House in Notting Hill), multi-unit apartment developments (Sylvester Road, Brompton Road, Mare Street), mixed-use schemes (Granby House, High Street Brentwood), hotel developments (Hastings Hotel), commercial fit-outs (Rabobank headquarters), and specialized structures (M4 Ad Tower). The firm operates throughout London, the home counties, Yorkshire, Suffolk, and Shropshire.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Full architectural design services for residential and commercial projects ranging from £100,000 to £5,000,000+, including feasibility studies, detailed design, planning applications, and construction phase management.
• Project Management End-to-end project management services overseeing construction projects from initial feasibility through to completion, delivered alongside the practice's architectural design offering.
• Interior Design Interior design and fit-out services for commercial and residential spaces, including complete office fit-outs such as the Rabobank London headquarters at Upper Thames Street.
• Principle Designer Services (CDM) CDM (Construction Design and Management) regulatory compliance services delivered in the Principal Designer role to satisfy UK construction health and safety regulations.

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Direct peers

• BuckleyGrayYeoman: London architectural practice with a strong commercial workplace and hospitality fit-out portfolio. Directly comparable for projects like the Rabobank HQ fit-out that Studio 303 has executed.
• John McAslan + Partners: UK architectural practice with mixed-use, commercial and residential projects. Comparable scope covering architecture, interior design and masterplanning across urban contexts.
• Haworth Tompkins: UK architectural practice focused on theatre, housing and mixed-use urban projects. Highly comparable project profile (residential, mixed-use, refurbishment) at similar scale and London base.
• Karakusevic Carson Architects: UK architectural practice specialising in housing, mixed-use and masterplanning. Comparable in residential and mixed-use project focus with project values in a similar range to Studio 303's mid-tier residential work.
• Stanton Williams: London mid-size architectural firm with a similar residential, commercial and cultural-sector portfolio. Comparable in delivering design-led projects from feasibility through construction, with comparable project scales.
• Allies and Morrison: UK architectural practice of broadly similar size covering residential, commercial and public-sector projects. Comparable mix of high-quality urban design, mixed-use developments and bespoke residential work, with London as a primary base.
• Allford Hall Monaghan Morris (AHMM): Larger UK architectural practice covering commercial, residential and mixed-use projects. Comparable in project types (commercial fit-outs, residential, mixed-use) but operates at greater scale with broader resources.
• Pollard Thomas Edwards: London-based mid-size architectural practice with comparable housing and mixed-use portfolio across the UK. Closely comparable in scale, project values, and residential/mixed-use focus, including work for housing associations, developers and private clients.

Emerging players

• Feilden Fowles: Smaller, design-led UK architectural practice with a growing residential and cultural portfolio. Comparable in partner-led boutique model and design ambition but at an earlier stage of growth.

Broad incumbents

• Foster + Partners: Global architectural incumbent with a London base and a portfolio spanning commercial, residential and masterplanning projects at the very largest scale. Comparable only at the broadest industry level; commands resources, fees and project scale well beyond Studio 303's operating range.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/studio-303-ltd

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 Studio 303