Tredje Natur
Tredje Natur is a Copenhagen-based Danish architecture and urban-design practice focused on integrating buildings, landscape, infrastructure, and climate adaptation.
Last updated August 27, 2026
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Overview
Tredje Natur, literally meaning “Third Nature,” is a Copenhagen-based architectural and urban-design practice founded in 2012 by Flemming Rafn Thomsen and Ole Schrøder. The firm works primarily at the intersection of architecture, urban planning, landscape, and infrastructure, with an emphasis on how cities can respond to environmental pressures while improving public life. Its name expresses an interest in conditions that are neither untouched nature nor conventional built form, but hybrid urban environments in which ecological systems, public spaces, mobility, and construction are designed together. The practice emerged in Denmark’s strong architecture and planning culture and has been associated with projects that address neighborhood renewal, master planning, public-space design, and the transformation of former or underused sites. Rather than treating climate resilience as a separate technical layer, Tredje Natur’s work is oriented toward combining storm-water management, biodiversity, recreation, and urban development within visible and usable civic landscapes. This approach is particularly relevant in dense cities where conventional drainage and infrastructure solutions compete with limited public space. Among the firm’s identified projects is St. Kjeld’s Quarter in Copenhagen, for which it won a competition in 2012. The project is associated with the transformation of an urban neighborhood through public-realm and climate-adaptation measures. Tredje Natur also won the competition for the Vinge masterplan near Frederikssund in October 2014, extending its work from individual urban districts to larger-scale planning. In January 2015, the practice won competitions for Enghaveparken in Copenhagen and the redevelopment of South Camp at Værløse Air Base in collaboration with COBE Architects. In March 2015, it won the Faste Batteri competition in Copenhagen in collaboration with Arkitema, and in March 2016 it won the Sølund competition with C. F. Møller Architects. Malene Krüger joined Tredje Natur in January 2015, expanding the practice’s named leadership beyond its two founders. The firm’s listed work demonstrates a collaborative model: it has undertaken projects independently and has also formed teams with established Danish architecture practices for complex urban and redevelopment commissions. Publicly available reference material identifies Tredje Natur principally through its architectural and urban-planning work rather than through consumer products or a broad corporate group. No reliable information in the supplied sources establishes a parent company, stock-market listing, financial figures, official website URL, or international operating structure. Its documented profile is therefore that of a specialist Danish professional-services brand whose reputation rests on design competitions, urban transformation, and the integration of natural processes into the built environment.
History
Tredje Natur was established in Copenhagen in 2012 by Flemming Rafn Thomsen and Ole Schrøder. The practice’s name, translated as “Third Nature,” describes an architectural and planning interest in hybrid environments that combine natural systems with constructed urban settings. Its work addresses the relationship between buildings, landscape, public space, infrastructure, and ecological processes. The firm’s early documented activity included its successful competition entry for St. Kjeld’s Quarter in Copenhagen in 2012. This work helped establish its focus on urban districts and public-realm transformation. In October 2014, Tredje Natur won the competition for the Vinge masterplan in Frederikssund, representing a move toward larger-scale urban planning. The practice expanded its named team in January 2015 when Malene Krüger joined. That same month, it won competitions for the redesign of Enghaveparken in Copenhagen and for the South Camp redevelopment at Værløse Air Base, the latter undertaken with COBE Architects. In March 2015, Tredje Natur won the Faste Batteri competition in Copenhagen in collaboration with Arkitema. In March 2016, it won the Sølund competition together with C. F. Møller Architects. These commissions show a practice operating across several scales, from individual parks and neighborhood public spaces to masterplans and redevelopment of former institutional or military areas. The documented collaborations also indicate that Tredje Natur has worked as part of multidisciplinary or multi-firm teams when project complexity required complementary expertise. Available reference material presents the firm as a Danish architecture and urban-planning practice rather than as a diversified corporate group or consumer-facing product brand. Detailed information about later projects, organizational changes, financial performance, ownership, and current management is not established by the supplied sources.
- 2016
Sølund competition
[1]The practice won the Sølund competition in Copenhagen with C. F. Møller Architects.
- 2015
New team member and multiple competition wins
[1]Malene Krüger joined the practice in January. During the same month, Tredje Natur won competitions for Enghaveparken and the South Camp redevelopment at Værløse Air Base with COBE Architects.
- 2015
Faste Batteri competition
[1]Tredje Natur won the Faste Batteri competition in Copenhagen in collaboration with Arkitema.
- 2014
Vinge masterplan competition
[1]The practice won the competition for the Vinge masterplan near Frederikssund in October.
- 2012
Practice founded
[1]Flemming Rafn Thomsen and Ole Schrøder founded Tredje Natur in Copenhagen as an architecture and urban-design practice.
- 2012
St. Kjeld's Quarter competition
[1]Tredje Natur won a competition connected with the St. Kjeld's Quarter project in Copenhagen.
Products and positioning
A Danish architecture and urban-design practice positioned around hybrid urban environments where architecture, landscape, infrastructure, public space, and climate adaptation are planned as a connected whole.
Urban redevelopment and climate-adaptive public space · 2012
St. Kjeld's Quarter
A Copenhagen neighborhood project associated with Tredje Natur’s approach to combining urban renewal, public-realm design, and environmental adaptation. It is one of the practice’s earliest documented competition successes and illustrates its interest in treating streets, open spaces, and ecological systems as parts of a connected urban structure.
Master planning · 2014
Vinge masterplan
A large-scale masterplanning commission near Frederikssund, Denmark. Tredje Natur won the competition in October 2014, extending its work from neighborhood-scale interventions into the planning of a broader new urban area.
Park and public-space design · 2015
Enghaveparken
A Copenhagen park project for which Tredje Natur won a competition in January 2015. The commission fits the practice’s documented focus on public landscapes and the integration of urban environmental functions with everyday civic space.
Site redevelopment and urban planning · 2015
South Camp redevelopment
A redevelopment proposal for South Camp at Værløse Air Base, undertaken with COBE Architects. The project concerns the transformation of a former air-base setting and demonstrates Tredje Natur’s participation in collaborative area-scale redevelopment.
Urban development · 2015
Faste Batteri
A Copenhagen competition project developed with Arkitema. Tredje Natur won the competition in March 2015, adding another collaborative urban-development commission to its portfolio.
Architectural and urban redevelopment · 2016
Sølund
A Copenhagen project developed with C. F. Møller Architects. Tredje Natur won the competition in March 2016, demonstrating the firm’s continued involvement in complex architectural and urban-design collaborations.
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