construction office.one
baubüro.eins is a Hamburg-headquartered German architecture firm specializing in construction supervision and project coordination (HOAI phases 6–9) for public, academic, cultural, and commercial clients across Germany, operating from four offices with 50+ architects and engineers.
- Company typePrivate
- Founded2004
- HeadquartersHamburg, Germany
- Headcount11–50
- GTM typeB2B
- OfferingServices
What construction office.one does
baubüro.eins is a privately held German architecture firm founded in 2004 and headquartered in Hamburg, specializing in construction supervision (Objektüberwachung) and project coordination during the execution phases of construction projects. The firm focuses on HOAI work phases 6 through 9 — tendering (Ausschreibung), awarding (Vergabe), site supervision, and post-construction support — and deliberately partners with rather than competes against design architects. Its service portfolio spans cost management, scheduling, quality assurance, defect and change order management, general planning (Generalplanung), and increasingly Lean Construction Management (Last Planner System, takt planning) alongside a Holzbau (wood/timber-hybrid) specialty. Notable executed and ongoing projects include the €120M Beethovenhalle modernization in Bonn, the European Centre for Medium-Range Weather Forecasts (EZMW) data center, the interfaith House of One, and academic buildings for Georg-August-Universität Göttingen.
The firm operates from four German offices — Hamburg (HQ), Berlin, Köln-Bonn, and Kiel — and serves public-sector, academic, cultural, residential, and commercial clients across Germany. Technology adoption is pragmatic: digital tools such as PlanRadar (site documentation and defect management) and ORCA (tendering and cost tracking) are deployed as standard practice, alongside BIM information management capabilities. The firm employs 50+ architects and engineers, with Lean Construction, BIM, and TÜV-certified fire protection expertise embedded in the team.
Revenue is generated exclusively through professional services on a project-based, quote-driven fee model tied to HOAI performance phases; specific fees are not publicly disclosed. The firm has no parent company, no disclosed external investors or funding rounds, and is owner-managed by founder Thorsten Freier. Its commercial model relies on direct client engagement and on referral pipelines from a partner ecosystem of renowned national and international architecture firms.
construction office.one firmographics
Firmographics- Name
- construction office.one
- Legal name
- baubüro.eins
- Website
- https://baubueroeins.de
- Company type
- Private
- Founded year
- 2004
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- baubüro.eins is a Hamburg-headquartered German architecture firm specializing in construction supervision and project coordination (HOAI phases 6–9) for public, academic, cultural, and commercial clients across Germany, operating from four offices with 50+ architects and engineers.
- Ownership category
- akta.pro rank
construction office.one industry classification
Industry- Product category
- Architecture and Construction Management Services
- NAICS
- Engineering Services (541330), Architectural Services (541310), Architectural Services (54131), Architectural, Engineering, and Related Services (5413)
- SIC
- Services-Engineering Services (8711)
- akta.pro primary industry
- Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)
Keywords
Where construction office.one is headquartered
LocationHeadquarters
- HQ city
- Hamburg
- HQ country
- Germany
- HQ region
- Europe
Offices4 records
Markets served
construction office.one business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Architecture and Construction Management Services: Revenue is generated through professional services in architecture, construction supervision (LP 6-9 HOAI), project coordination, cost management, scheduling, tendering and bidding, and quality management for construction projects. The firm operates in both new construction and renovation/restoration projects.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels1 record
construction office.one product offering
Product offeringCore offering
baubüro.eins is a German architecture firm specializing in construction supervision and project coordination during the execution phases of building projects (HOAI Leistungsphasen 6–9), including tendering, bid evaluation, site monitoring, cost and schedule management, quality assurance, and post-construction support. The firm works alongside renowned design architects on demanding projects in culture, research, education, residential, and commercial construction, and applies Lean Construction methodology as standard practice.
Product overview
baubüro.eins is an architecture firm specializing in construction management and project coordination during execution phases (HOAI Work Phases 6-9). Their core service offering consists of: tendering (LP 6), awarding (LP 7), site monitoring/construction supervision (LP 8), and post-construction support (LP 9). These services are supported by specialized offerings including cost management (Kostenmanagement), schedule management (Terminmanagement), quality management (Qualitätsmanagement), general planning (Generalplanung), and Lean Construction Management. The firm also provides a specialized backoffice module for object monitoring. They work in close collaboration with renowned architecture firms on projects in culture, research, education, residential, and commercial construction.
Differentiator
Problem solved
Functional benefit
Products and services
- Objektüberwachung (LP 8 HOAI) – Construction Site Supervision
- Ausschreibung (LP 6 HOAI) – Tendering Services
- Vergabe (LP 7 HOAI) – Bid Award Services
- Kostenmanagement – Cost Management
- Terminmanagement – Schedule Management
- Qualitätsmanagement – Quality Management
- Objektbetreuung (LP 9 HOAI) – Post-Construction Support
- Generalplanung – General Planning
- Lean Construction Management
- Backoffice Objektüberwachung – Site Monitoring Backoffice
Companies that use construction office.one
Customer profileNamed customers5 records
Segments5 records
Ideal customer profiles2 records
construction office.one technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
Feature3 records
construction office.one partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Various Architecture Firmscorebaubüro.eins works in close collaboration with renowned national and international architecture firms. While these firms handle the design, baubüro.eins provides construction supervision and project coordination services. Notable partnerships include medium architekten, Architekten Prof. Klaus Sill, DFZ Architekten, Renner Hainke Wirth Architekten, and others.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
construction office.one competitors and assessment
Company assessmentBroad incumbents
- WSP in Germany: WSP is a global professional services firm with German operations providing project management and construction supervision for cultural, research, and commercial buildings. Comparable for its German architecture/PM service offering.
- Arcadis Germany: Arcadis is a global design and consultancy firm with a strong German presence offering project management, cost consultancy, and construction supervision. Comparable via its execution-phase services for complex building projects across Germany.
Direct peers
- Assmann Beraten + Planen: Assmann is a German architecture and engineering firm providing planning, supervision, and project management services. Comparable via its full HOAI lifecycle offerings for complex German building projects.
- BRENDEBACH INGENIEURE: Brendebach Ingenieure is a German engineering firm specializing in construction supervision and project coordination. Directly comparable as a specialist German firm focused on execution-phase services.
- Drees & Sommer: Drees & Sommer is a leading German engineering and construction management consultancy with deep HOAI execution-phase expertise. Comparable as a German firm offering construction supervision, cost management, and project coordination at a larger scale than baubüro.eins.
- RKW Architektur +: RKW Architektur + is a German architecture firm offering full HOAI services including construction supervision. Comparable as a German practice serving cultural, commercial, and residential projects.
- HPP Architekten: HPP is a major German architecture firm offering full HOAI service spectrum including construction supervision. Comparable as a German architecture practice serving cultural, institutional, and commercial clients at scale.
- Hascher Jehle Architektur: Hascher Jehle is a German architecture firm with strong cultural and institutional project experience. Comparable for its German HOAI-based architectural services across design and execution phases.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
construction office.one social profiles
Digital presenceconstruction office.one compliance and trust
Trust signalCompliance2 records
construction office.one financial estimates
Financial estimateRevenue estimate
Valuation estimate
construction office.one leadership team
Management profileNumber of profiles
Profiles11 records
construction office.one funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
construction office.one M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about construction office.one
What does construction office.one do?
baubüro.eins is a German architecture firm specializing in construction supervision and project coordination during the execution phases of building projects (HOAI Leistungsphasen 6–9), including tendering, bid evaluation, site monitoring, cost and schedule management, quality assurance, and post-construction support. The firm works alongside renowned design architects on demanding projects in culture, research, education, residential, and commercial construction, and applies Lean Construction methodology as standard practice.
Is construction office.one a public or private company?
construction office.one is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was construction office.one founded?
construction office.one was founded in 2004. It employs 11 to 50 people.
Where is construction office.one based?
construction office.one is headquartered in Hamburg, Germany, in the Europe region.
How does construction office.one make money?
One revenue line is on record: architecture and Construction Management Services.
Who are construction office.one's main competitors?
Broad incumbents on record are WSP in Germany and Arcadis Germany. Direct peers are Assmann Beraten + Planen, BRENDEBACH INGENIEURE, Drees & Sommer, RKW Architektur +, HPP Architekten and Hascher Jehle Architektur.
Does construction office.one have an API?
No public API is recorded for construction office.one.
What industry is construction office.one in?
construction office.one's product category is Architecture and Construction Management Services. Its primary akta.pro industry code is IMAFABAE, Residential Design-Build & Renovation-Integrated Builders. Its NAICS code is 541330 and its SIC code is 8711.