BAUMANN ROSERENS ARCHITEKTEN AG

What BAUMANN ROSERENS ARCHITEKTEN AG does

Baumann Roserens Architekten AG was a privately held Swiss architecture firm headquartered at Limmatstrasse 285, Zürich, founded in 1998 by ETH Zürich graduates Lorenz Baumann and Alain Roserens. The firm offered full-scope architectural services — from competition entry and conceptual design through planning, construction documentation, and on-site supervision — across residential housing (Wohnungsbau), public buildings (Öffentlicher Bau), mixed-use developments, healthcare facilities, and private single-family residences. Technical capabilities emphasized urban-context integration, sustainable construction including timber (Holzbau) and hybrid wood-concrete systems, and engagement with heritage sites. Notable executed projects included the 51.7 Mio CHF Erweiterung Bettentrakt at Klinik Schloss Mammern (2022), the 49 Mio CHF Tokeh Seminarstrasse housing project for Baugenossenschaft Vrenelisgärtli, and the 70-unit timber-built Dreijohann Basel for SBB Immobilien.

The firm generated revenue exclusively through professional design fees on a project-by-project basis, with pricing structured per the Swiss SIA Honorarordnung or negotiated per scope; construction values of individual commissions spanned from 0.75 Mio CHF to 51.7 Mio CHF. Go-to-market was sales-led, channeled primarily through participation in Swiss architectural competitions (Wettbewerbe) — both open and invited — where the firm accumulated a track record of first and second prizes across housing cooperatives, municipalities, and healthcare operators in the German-speaking Swiss market. The firm did not raise external capital, operated only in Switzerland, and had no disclosed technology, AI, or SaaS components.

In July 2025, after 27 years of partnership, the firm was split into two independent entities: Baumann Bürgi Architekten AG (led by Lorenz Baumann with Mike Bürgi, who joined the management board in 2015) and Roserens Architekten AG (led by Alain Roserens). The original Baumann Roserens Architekten AG therefore ceased to exist in its original form, and any forward analysis applies to its successor entities rather than the dissolved partnership.

Name

BAUMANN ROSERENS ARCHITEKTEN AG

Legal name

Baumann Roserens Architekten AG

Website

https://brarch.ch

Company type

Private

Founded year

1998

Operating status

Closed

Headcount range

1–10 employees

Short description

Baumann Roserens Architekten AG was a Zürich-based Swiss architecture firm (founded 1998) specializing in residential, public, and healthcare projects, generating design fees through architectural competitions for housing cooperatives, municipalities, and institutional clients.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

Keywords

• Architectural design services
• Residential housing architecture
• Public building design
• Healthcare facility architecture
• Sustainable timber construction

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Architectural Design Services: Revenue generated through architectural design fees for residential, public, and commercial construction projects. Projects are obtained through architectural competitions and direct commissions, with fees typically based on project complexity and construction costs.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

BAUMANN ROSERENS ARCHITEKTEN AG was a Zurich-based architecture firm offering full-service architectural design from competition entry through construction supervision. Services spanned residential housing (Wohnungsbau), public buildings, healthcare facilities, and mixed-use developments. Projects were primarily won through Swiss architectural competitions and direct commissions from housing cooperatives, public institutions, and private developers.

Product overview

Baumann Roserens Architekten ETH SIA BSA is an architectural firm based in Zurich, Switzerland, offering comprehensive architectural services across multiple building typologies. The firm operates as a unified design practice with no modular product structure. Their core service encompasses architectural design, project management, and construction supervision across project categories including residential housing (Wohnungsbau), public buildings (Öffentlicher Bau), selected works (Ausgewählt), built projects (Ausgeführt), and competition entries (Wettbewerb). The firm's portfolio spans diverse scales from single-family homes to large-scale housing developments, clinic facilities, and urban interventions.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services

Quantifiable outcome

• Multiple first-prize competition wins demonstrating consistent quality and innovation
• +1 more outcomes

Named customers8 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

Partnerships

16 partnerships are on record, tiered core and supporting.

• Schmid Urbscheit Landschaftsarchitekten, ZürichcoreTechnology or Integration · 1 January 2023Landscape architecture partner for Wohnsiedlung Wallisellenstrasse project (1st prize 2023, 156 apartments).
• Müller Illien Landschaftsarchitekten GmbH, ZürichsupportingTechnology or Integration · 1 January 2022Landscape architecture for Klinik Schloss Mammern project, working on park integration and outdoor space design.
• Grego Kühnle Architektur, ZürichsupportingTechnology or Integration · 1 January 2022Interior architecture partner for Klinik Schloss Mammern healthcare facility project.
• AFRY Schweiz AGsupportingTechnology or Integration · 1 January 2021Civil engineering services for Freihofstrasse Erlenbach project.
• Drees & Sommer Schweiz AGsupportingTechnology or Integration · 1 January 2021Project management and construction management for Freihofstrasse Erlenbach project.
• Forster & Burgmer Architekten + GU AGsupportingTechnology or Integration · 1 January 2021Cost planning and construction management for Klinik Schloss Mammern expansion, including general contractor role.
• Benedikt Stähli, ChamsupportingTechnology or Integration · 1 January 2021Landscape architecture for Wohnüberbauung Mülimatt project (56 apartments, completed 2021).
• Anliker AG GUsupportingImplementation/ SI/ Consulting Partner · 1 January 2021General contractor (Totalunternehmer) for Mülimatt project.
• Kuhn Landschaftsarchitekten GmbHcoreStrategic or Co-development Partner · 1 January 2020Landscape architecture partner for multiple projects including Zentrumsentwicklung Adligenswil (2019) and Neubebauung Freihofstrasse Erlenbach (2021). Kuhn provides landscape design integration for residential and municipal projects.
• schaerholzbau ag, AltbüronsupportingImplementation/ SI/ Consulting Partner · 1 January 2020General contractor for Rossbergstrasse project (2020-2023). Specializes in timber construction.
• Antòn Landschaft, ZürichsupportingTechnology or Integration · 1 January 2019Landscape architecture for Lerchenhalde project (2nd prize 2019, 96 apartments).
• schaerholzbau AG, AltbüronsupportingImplementation/ SI/ Consulting Partner · 1 January 2019General contractor for Dreijohann Basel project (70 apartments, Holz construction, completed 2022).
• Laboratorium KLA, ZürichsupportingTechnology or Integration · 1 January 2018Building physics and environmental engineering for Tokeh Seminarstrasse project (2018-2024, 49 Mio CHF).
• Studio Vulkan, ZürichsupportingTechnology or Integration · 1 January 2018Landscape architecture partner for Ziegeleipark Horw/Kriens project (106 apartments, 2018-2023).
• Roger Frei, ZürichsupportingOthers · 1 January 2018Photography services for Ziegeleipark project documentation.
• Lüchinger + Meyer Bauingenieure AGsupportingTechnology or Integration · 1 January 2016Structural engineering partner for Klinik Schloss Mammern expansion (2016-2022, 51.7 Mio CHF). Provides specialized structural engineering for healthcare facilities.

Scale indicators2 records

Recent moves7 records

Expansion highlights3 records

Direct peers

• EM2N Architekten: Zürich-based Swiss architecture firm active in residential, public, and educational buildings, with competition-led project acquisition. Closely comparable in typology and Zurich-centric operating model.
• Burckhardt+Partner: Long-established Swiss architecture firm with a broad practice spanning residential, public, healthcare, and commercial buildings. Highly comparable in typology mix, Swiss competition-based GTM, and ETH/SIA credentialed partners.
• Pool Architekten: Swiss architecture practice specializing in residential, public, and educational buildings with competition-led engagement. Comparable in scale, ETH-credentialed team, and Swiss cooperative/public client base.
• HHF Architekten: Basel-based Swiss architecture firm with a portfolio of residential, public, and typologically diverse projects, frequently won through architectural competitions. Comparable in size, typology breadth, and competition-driven GTM.
• Christ & Gantenbein: Swiss architecture practice known for residential, cultural, and public buildings, with strong competition-winning portfolio. Comparable in size, ETH-credentialed partners, and reliance on Swiss Wettbewerbe.
• Diener & Diener Architekten: Basel-based Swiss architecture firm with strong track record in residential, public, and urban housing projects, frequently engaged via Swiss architectural competitions. Directly comparable in typology and competition-driven client acquisition.
• Caruso St John: Swiss-rooted architecture practice with strong competition record in residential, public, and cultural buildings. Comparable in competition-led GTM and focus on high-quality Swiss and European institutional commissions.
• Durisch + Nolli Architekten: Small Swiss architecture firm focused on residential, public, and typologically rigorous buildings, with competition-based project acquisition. Comparable in firm size and ETH-trained partners.

Broad incumbents

• Herzog & de Meuron: Globally leading Basel-based architecture firm with significant Swiss residential and cultural work. Larger and broader than the subject, but operates in the same Swiss architectural competition ecosystem and on overlapping typologies.
• David Chipperfield Architects: Internationally established architecture firm with substantial Swiss and European public and cultural work. Broader incumbent competing for similar high-prestige institutional and residential competitions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/Baumann-Roserens-Architekten-155967657814543
• LinkedInlinkedin.com/company/baumann-roserens-architekten-ag

Revenue estimate

Valuation estimate

Number of profiles

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 BAUMANN ROSERENS ARCHITEKTEN AG