Kokon Architectuur & Stedenbouw

What Kokon Architectuur & Stedenbouw does

Kokon Architectuur & Stedenbouw is a Dutch architecture, urban design, heritage, and engineering practice headquartered in Rotterdam. Its lineage traces to 1937 under predecessor firms including Van Tijen & Maaskant; the Kokon name has been in use since 1975, marking the firm's 50th anniversary in 2025. The firm operates as a private Dutch B.V. with a team of roughly 11–50 employees, delivering projects across new-build housing, urban masterplans, heritage preservation, and engineering services. Its core technology stack is BIM/Revit-based, augmented by an internal "Kokon Lab" and experimentation with 3D concrete printing and modular concepts such as Tiny Kokon and the Kokontainer.

The firm serves developer, municipal, healthcare, and housing-association clients; named clients include BPD, Adriaan van Erk, Frankeland Group, the Municipality of Gouda, KBM Groep, Niersman, Vesteda, and ASR. Revenue is generated through project-based fees tied to design commissions, masterplans, and tender wins on competitive public and private briefs. Recent contract wins include the Bouwveld B15 plot in Westergouwe, Gouda (December 2025), delivered in partnership with Radix & Veerman and LOF Landschapsarchitecten. Sustainability credentials (BENG, NOM, BREEAM, SDG 11 alignment) are a recurring feature of the value proposition and a likely gating requirement in tender evaluation.

Kokon supplements its domestic practice with selective international work via the Tunecare Foundation in Turkey, China, and Mozambique, and product-line extensions such as the Floho floating housing initiative (with Domera and Van den Heuvel). Leadership is anchored by Ron van Leeuwen (three decades at the firm) and Henk Middelkoop (joined 2017), with no disclosed plan for material ownership change, M&A, or external capital raising.

Name

Kokon Architectuur & Stedenbouw

Legal name

Kokon Architectuur & Stedenbouw B.V.

Website

https://kokon.nl

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

11–50 employees

Short description

Kokon Architectuur & Stedenbouw is a Rotterdam-based Dutch architecture, urban design, heritage, and engineering practice (founded 1937 as Van Tijen & Maaskant, Kokon name since 1975) serving developers, municipalities, housing associations, and healthcare clients with BIM-based design and sustainability-led tenders.

Ownership category

akta.pro rank

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architecture and Design Services: Fees for architectural design services including residential, commercial, and healthcare building design. Revenue generated through project-based commissions from developers, municipalities, housing corporations, and private clients.
2. Urban Planning Services: Urban design and planning services for new developments and neighborhood revitalizations, commissioned by municipalities and project developers.
3. Heritage Preservation Services: Specialized heritage restoration and monument preservation services, including national monument renovations.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Kokon Architectuur & Stedenbouw provides professional architectural design, urban planning (Stedenbouw), heritage preservation (Erfgoed), and engineering services for residential, commercial, healthcare, and public sector projects. The firm delivers full-service design from concept through to completion, supported by BIM (Revit) workflows and innovation initiatives such as 3D concrete printing, circular architecture, and climate-adaptive urban planning. Services are commissioned by project developers, municipalities, housing corporations, healthcare providers, and private clients across the Netherlands.

Product overview

Kokon Architectuur & Stedenbouw is a Rotterdam-based architecture and urban planning firm founded in the 1930s, led by partners Ron van Leeuwen and Henk Middelkoop. The firm offers an integrated portfolio of architecture, urban planning (Stedenbouw), heritage preservation (Erfgoed), and engineering services. Their core offerings span residential buildings, healthcare facilities, urban districts, and heritage projects. The firm also operates specialized innovation initiatives including Kokon Lab (experimental projects), Kokontainer (container-based housing), and Tiny Kokon (small-scale affordable housing). Technical capabilities include BIM services using Revit, sustainable design (BENG, NOM, Passive Building), circular architecture, wood construction, and climate-adaptive urban planning. The portfolio includes diverse housing types from single-family homes to high-rise apartments, special needs care facilities, student housing, and urban transformations.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services Full-service architectural design for residential, commercial, and healthcare buildings, from concept to completion. Serves project developers, healthcare organizations, municipalities, housing corporations, and private individuals across the Netherlands.
• Urban Planning (Stedenbouw) Urban design and planning services including district development, neighborhood planning, and climate-adaptive urban strategies. Commissioned by municipalities and project developers for new developments and neighborhood revitalizations.
• Heritage Preservation (Erfgoed) Restoration, renovation, and adaptive reuse of heritage buildings and national monuments. Specialized expertise in Dutch heritage preservation with multiple national monument projects.
• Engineering Engineering services integrated with architectural design, including structural and technical design. Provides integrated design-to-engineering workflows for projects.

Quantifiable outcome

• 90% of homes sold by Q1 2024 in Weespersluis project phase
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core, minor and strategic.

• Radix & VeermancoreStrategic or Co-development Partner · 26 December 2025Joint tender partnership with Radix & Veerman from Woerden for Bouwveld B15 in Westergouwe, Gouda. The team won the tender with a design featuring two distinctive residential buildings with 30 apartments, emphasizing beauty as an explicit design criterion based on Golden Ratio principles.
• LOF LandschapsarchitectencoreStrategic or Co-development Partner · 26 December 2025Landscape architecture partner for the Bouwveld B15 project in Westergouwe. LOF contributed to the landscape design that reinforces the dual orientation between traditional neighborhood facades and contemporary water-side architecture.
• Tunecare FoundationminorStrategic or Co-development Partner · 25 January 2018Partnership with the Turkish-Netherlands Care Development foundation for realizing elderly and disabled care projects in Turkey with high European standards, respecting cultural and traditional differences.
• Floho (with Domera and Van den Heuvel)strategicStrategic or Co-development PartnerFloho is an initiative by Domera, Van den Heuvel, and Kokon offering new perspectives on floating houses for water-rich areas of the Netherlands. The initiative develops floating residential solutions for areas below sea level.
• KBM GroepcoreImplementation/ SI/ Consulting PartnerClient and development partner for the 't ValkenTij project in Valkenburg, a small-scale residential neighborhood along the Oude Rijn designed as the village's new entrance.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Powerhouse Company: Powerhouse Company is a Dutch architecture firm of comparable size with a strong residential and mixed-use focus plus international projects. Comparable in typology (residential, urban regeneration) and developer-driven business model.
• cepezed: cepezed is a Dutch architecture and interior firm with strong BIM and technical-design orientation. Comparable mid-sized practice with emphasis on innovation and integrated design processes similar to Kokon's BIM workflow.
• Mecanoo: Mecanoo is a Dutch architecture firm of similar mid-sized scale headquartered in Delft, active across residential, healthcare, urban, and heritage projects. Directly comparable in offering mix, Dutch market focus, and project typology to Kokon.
• LIAG architecten: LIAG architecten is a Dutch firm with substantial experience in social housing, healthcare, and heritage — directly overlapping with Kokon's specialty in residential, care facilities, and national monument renovation.
• KCAP: KCAP (Kees Christiaanse, Architecture & Planning) is a Rotterdam-based firm combining architecture and urban planning, serving similar municipal and developer clients across Europe. Direct competitor on integrated urban + architectural commissions.
• KuiperCompagnons: KuiperCompagnons is a Dutch urban design and architecture firm that actively collaborates with Kokon on the Westergouwe masterplan. Overlaps directly in urban planning, residential design, and Dutch municipal tender work.
• de Architekten Cie. de Architekten Cie. is a mid-sized Dutch architecture practice in Amsterdam with a comparable portfolio in residential masterplans, urban regeneration, and high-rise housing. Operates with similar headcount and Dutch developer/government client base.

Emerging players

• ZUS (Zones Urbaines Sensibles): ZUS is a Rotterdam-based practice combining architecture and urbanism with a strong sustainability and social-housing orientation. Comparable to Kokon in scale, Dutch focus, and integrated urban-architecture approach, with a slightly more emerging profile.

Broad incumbents

• MVRDV: MVRDV is a much larger Rotterdam-based architecture practice with global operations, often competing for the same Dutch housing, urban regeneration, and public tenders. Represents the upper-scale incumbent Kokon competes against on high-profile commissions.
• OMA: OMA is a globally leading Dutch architecture and urban planning firm; broader, larger, and more international than Kokon but competes on landmark Dutch commissions and large-scale masterplans.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key highlights7 records

Customer concentration

• Xtwitter.com/kokon_arch
• Facebooknl-nl.facebook.com/kokon.nl
• LinkedInlinkedin.com/company/kokon-architectuur-stedenbouw
• Instagraminstagram.com/kokonarchitecten
• Pinterestnl.pinterest.com/Kokonarchitecten

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Kokon Architectuur & Stedenbouw