VILLUM Window Collection documents and communicates the history of the window and its significance to the quality of human life through access to light, air and view.


VILLUM Window Collection

Maskinvej 4 
2860 Søborg


Opening hours:

October - March
Tuesday 10 am - 4 pm
Thursday 10 am - 7 pm

April - September
Tuesday and Thursday from 10 am to 4 pm

or by request.

July closed

NB. The museum will be closed on May 30th.

Free Admission.
Book guided tours by contacting
Dorthe Bech-Nielsen
+45 23614260


VILLUM Window Collection was established in 2006 on the initiative of Lars Kann-Rasmussen. The collection is named after his father, civil engineer Villum Kann Rasmussen, who founded the VKR Group in 1941 and developed the first VELUX roof window in 1942.

VILLUM Window Collection houses approximately 300 historical windows that date from the 17th century until today. The exhibition is unique, as it is a comprehensive physical collection of technical, artisanal and historical examples of the development of the window.

It is located in the VKR Group's first headquater at Maskinvej 4 in Søborg, which was inaugurated in 1951. The main building was designed by Danish architect Dan Fink, whereas the workshop areas - the VELKIN halls - behind the building are one of Villum Kann-Rasmussens many inventions. Developed in 1945, the VELKIN hall was the first pre-fabricated modular industrial hall system in Denmark. 

At Maskinvej 4, the workshop areas were used for the manufacturing of VELFAC façade windows, along with other products such as the fittings for VELUX roof windows. The last of the commercial functions moved off of the premises in 2007.

The exhibition includes five themed stories about the window.

Window personalities
Twelve people who have contributed to and have had an impact on the development of windows and glass. Learn more about each person's special role in the history of window and glass by watching a short animated movie on the touch screen.

Technology and elements
With a split window, glass, frames and fittings, the components of the window are presented, as well as how the individual components are produced. In this theme you will also get an insight into some of the more unusual window words that are introduced with the split window.

The window in architecture
Architectural models, architecture photography and, of course, an impressive array of windows showcase the window’s importance to architecture and people’s access to light, air and views.

Mechanics of the window
Different types of window mechanisms allow for the window to be opened in different ways. The windows in the sturdy stands invite the visitor to test the mechanisms as well as watch the animated illustrations of the mechanisms on the screen. 

The window’s materials
What is a window really made from? The materials used to manufacture a window are exhibited on a table around which a series of windows in different materials is displayed. 

In the exhibition’s time tunnel, visitors are guided through the history of the window in a spatial sequence that stages the inflow of light through various historical windows; from the great mosaic panes of Paris' Sainte-Chapelle to large, contemporary, energy efficient windows. The time tunnel offers visitors a tangible and sensuous experience of the window's central role in people's access to light, air and views.

The warehouse wall gives the visitors a chance to explore more than sixty different windows from different eras. The windows are organised in chronological and stylistic order and colour-coded to correspond to the timeline. They are arranged according to their historical time period.


A six-metres long timeline recounts the history and development of windows and glass, from the first apertures in roofs and façades to contemporary, climate-friendly windows. Every stylistic period on the timeline has been assigned a colour. The colours reoccur throughout the entirety of the exhibition so that visitors can date the exhibited windows with ease.