nattmann-bruns Architekten

What nattmann-bruns Architekten does

nattmann-bruns Architekten is a Germany-based architectural firm operating as a Partnerschaftsgesellschaft mbB (professional partnership), founded in 1994 by Dieter Nattmann and headquartered in Cologne (Köln) with a secondary location in Bergisch Gladbach. The firm employs approximately 15-20 staff covering all HOAI work phases (1-9) of architecture and project management, and is currently led by co-managing partners Hendrik Bruns (joined 2015) and Jens Bartsch (joined 2020). Its service offering spans full architectural design, energetic renovation of existing buildings, large-scale residential settlement modernization, commercial real estate for retail chains, BIM-based 3D planning, project management and cost control, and a Generalplaner model that consolidates all specialist planning under a single contract.

The firm's core technology stack centers on ArchiCAD for 3D CAD planning, Building Information Modeling (BIM) for interdisciplinary collaboration on a shared digital model, and ORCA AVA for cost estimation and specification management. All planning is developed fully in 3D from concept stage to enable early collision detection. The firm's reputation is anchored by reference projects including the EU-funded GrowSmarter Stegerwaldsiedlung modernization (€90M, 593 apartments, 70% CO2 reduction), the Bilderstöckchen settlement renovation (€60M, 640 apartments), and the ongoing Düsseldorf-Garath project (€70M, 500 units, 2025-2029). It has completed over 100 commercial construction projects with major German retail chains over its 30-year history.

The business model is professional services-based: the firm is paid per-project architectural fees (typically HOAI-regulated, calculated from construction cost and complexity) under multi-year contracts. Its go-to-market is sales-led, direct client engagement with housing associations, private investors, retail chains, and municipal clients, primarily in North Rhine-Westphalia. The firm relies on its website (nattmann-bruns.de) as the primary discovery and showcasing channel, supported by direct email and phone inquiry for project acquisition and recruiting. Key customer segments are housing associations (Wohnungsgesellschaften), retail chains (Handelsketten), and private investors, with repeat engagements and long-term client relationships as a central feature.

Name

nattmann-bruns Architekten

Legal name

nattmann + bruns architekten Partnerschaftsgesellschaft mbB

Website

https://nattmann-bruns.de

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

1–10 employees

Short description

nattmann-bruns Architekten is a Cologne-based German architecture firm (~15-20 employees) offering full-service architectural planning, energy-efficient renovation, BIM-based 3D design, and Generalplaner services across all HOAI phases, primarily serving housing associations, retail chains, and private investors in North Rhine-Westphalia.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Engineering Services (541330)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Regional & Land Use Planning (BPAHAKAE), Master-Planned Community & POA Management (BPAJAHAD)

Keywords

• Architectural services
• Residential construction
• Commercial real estate
• BIM planning
• Energy renovation

Headquarters

HQ city

Köln (Cologne)

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Architectural and project management services: Fees for architectural services and project management across all HOAI work phases (1–9), from concept and building permit applications, through detailed execution planning, tendering and award of contracts, construction and object supervision, budget and cost control, to key handover. Services offered individually or as a Generalplaner (sole contact) package.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

nattmann-bruns Architekten is a German architectural firm providing integrated architectural services across all HOAI work phases for residential and commercial real estate clients. The firm's offerings include residential construction design, energy-efficient renovation, commercial real estate architecture (with a focus on retail chains), BIM-based planning, and full project management. Service is delivered to housing associations, private investors, and commercial/retail chain clients from offices in Cologne and Bergisch Gladbach.

Product overview

nattmann-bruns Architekten is an architecture firm offering comprehensive architectural and project management services. The firm operates as a service-based practice rather than a software product company, providing services across all HOAI Leistungsphasen (1-9). Their core service offerings include: (1) full-service architecture covering all project phases from concept to handover, (2) residential construction for housing associations and private investors, (3) energy-efficient renovation of existing buildings and entire settlements, (4) commercial real estate planning including supermarkets and retail chains, (5) BIM-based digital planning services, and (6) project management and cost controlling. The firm specializes in sustainable energy concepts including heat pumps, photovoltaic systems, green roofs, and rainwater management. They offer general planner services as a single point of contact for clients. The portfolio spans new construction, modernization, expansion, and large-scale settlement renovations, with a focus on the residential and commercial real estate sectors in the Cologne region.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architectural Services Full architectural design and planning services for residential construction projects, covering all HOAI work phases from concept through execution. Targeted at housing associations and private investors developing residential real estate.
• Commercial Real Estate Architecture Architectural design and planning for commercial buildings, with a specific focus on retail-chain locations and standardised commercial build-outs. Serves commercial property developers and retail chain expansion teams.
• Energy-Efficient Renovation Architectural services for renovating and upgrading existing buildings to improve energy performance, covering design, planning, and execution support. Targeted at housing associations and private investors seeking to enhance building sustainability.
• BIM Planning Building Information Modeling-based architectural planning using ArchiCAD for design and ORCA AVA for quantity takeoff and cost control, integrated across all HOAI work phases. Provides clients with model-driven coordination, cost transparency, and reduced design clashes.
• Project Management End-to-end project management of architectural projects, supporting coordination, scheduling, and oversight across all HOAI work phases. Available to the firm's residential and commercial real estate clients.

Quantifiable outcome

• 70% reduction in CO2 emissions and 80% reduction in primary energy consumption achieved at Stegerwaldsiedlung
• +4 more outcomes

Named customers15 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• Rheinenergie AGcoreStrategic or Co-development Partner · 1 January 2015Rheinenergie AG was a key project partner in the EU-funded GrowSmarter project (2015–2019) at Stegerwaldsiedlung. They installed an innovative heat supply system, including 41 high-efficiency air-source heat pumps, integration with the district heating network (primary energy factor 0), and a novel energy management system with self-learning algorithms for demand forecasting. The partnership combined distributed heat generation with intelligent energy management and PV systems.
• EU (GrowSmarter initiative)coreStrategic or Co-development Partner · 1 January 2015The Stegerwaldsiedlung project was part of the EU-funded GrowSmarter initiative (2015–2019), a European smart city project. The EU funding supported the comprehensive energetic modernization of 16 buildings with 593 apartments, demonstrating sustainable urban development solutions. The project served as a blueprint for climate-friendly development of urban districts.

Scale indicators8 records

Recent moves12 records

Expansion highlights4 records

Broad incumbents

• HPP Architekten: Established German architecture firm with broad portfolio including residential, commercial, and public projects. Larger and more diversified than nattmann-bruns but operates in the same German architectural services market with similar client segments.
• Drees & Sommer: Large German engineering and project management consultancy with significant activity in energy-efficient building and housing-stock modernization. Competes for the same housing-association renovation mandates, particularly in energetic retrofit.
• gmp Architekten (von Gerkan, Marg and Partners): One of Germany's largest and most established architectural practices. Operates broadly across residential, commercial, and large-scale urban projects; competes for the same institutional and developer clients as nattmann-bruns but at significantly larger scale.

Direct peers

• RKW Architektur +: German architecture firm with strong residential and urban housing expertise, including energetic renovation of housing stock. Comparable in services offered (HOAI phases, Generalplaner-style delivery) and client base of housing associations and developers.
• KSP Engel: Frankfurt-based architectural firm active across residential, commercial, and mixed-use developments in Germany. Direct overlap in housing-association and large-scale residential project work.
• astoc architects and planners: Cologne-based architecture practice with comparable portfolio in residential, commercial, and urban building projects. Operates in the same regional market (NRW) with similar scale and mixed-use, housing-association client base.
• Bez+Kock Architekten: Stuttgart-based architecture firm with comparable portfolio in residential construction, commercial buildings, and urban redevelopment. Similar scale and service delivery model across HOAI phases for German institutional clients.
• JSK Architekten: Düsseldorf/Berlin-based architecture practice with strong presence in housing construction and commercial real estate. Comparable service scope including full HOAI-phase delivery and BIM-enabled planning.

Emerging players

• ATP Architekten und Ingenieure: Integrated architecture and engineering firm with growing presence in German residential and commercial markets. Combines architectural design with engineering services, directly competing for Generalplaner-style mandates.

Regional players

• Heinle, Wischer und Partner: German architecture practice active in residential, commercial, and public projects across multiple German regions. Comparable in mid-market positioning and housing-association client work, though with broader geographic footprint.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/nattmann-bruns-architekten

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 nattmann-bruns Architekten