In 1903 an English mathematician called Henry Ernest Dudeney worked out how to turn a perfect square into a perfect equilateral triangle by dissecting the square into 4 distinct shapes, these shapes can be rearranged into the triangle. This concept alone is fascinating and the possibilities are endless when applying the formula to the world of architecture and design.

A good puzzle should demand the exercise of our best wits and ingenuity, and although a knowledge of mathematics … and … of logic are often of great service in the solution of these things, yet it sometimes happens that a kind of natural cunning and sagacity is of considerable value.





In 1903, English mathematician Henry Ernest Dudeney published his mathematical ‘Haberdasher’s Puzzle’ in the newspaper, ‘Weekly Dispatch’.

Dudeney’s puzzle posed a baffling conundrum: how to divide an equilateral triangle into four pieces to be reassembled into a square.

The Royal Society was intrigued in this geometrical novelty, and in 1905 Dudeney demonstrated his puzzle at a meeting of the Society.


Surprisingly, Dudeney’s achievement lay unnoticed in the pages of history until nearly 90 years later, when his novel idea was stumbled upon by Maty Grunberg. Intrigued by Dudeney’s masterpiece, Grunberg used the concept as a blueprint to construct a table. The design was an innovative success and left a lasting impression on Grunberg’s five-year-old son, David.

It is this event that served as the catalyst for the future establishment of The D*Haus Company.

A Swiss Army knife of a table.



Keen to explore the exciting possibilities the field of design presented to him as a child, David went on to study architecture.

In order to complete his dissertation, David was asked to design a prefabricated house that could withstand the extreme sub-arctic temperatures of Lap Land, a region of Finland and Sweden infamous for its harsh weather conditions.

David began researching prefabricated furniture when his mind wandered back to the original D*Table his father had designed twenty-two years earlier. After gaining his father’s approval, David went on to develop and launch the D*Haus, the world’s first prefabricated dynamic house.

The strength of the prefabricated house lies in its popularity, its cheapness and the industrial base from which it operates. These are precisely the areas in which modern architecture is weakest.



Daniel Woolfson joins the company. The Internationally-acclaimed British architect Sir David Chipperfield commended the D*Haus dynamic model and places it centre stage in the architecture room. D*Haus appeared on the BBC’s ‘The Culture Show’ alongside Sir David (see below).

Of the half a dozen Royal Academy Summer Shows that I have visited, this year’s presents by far the most engaging architecture room.

Ellis Woodman

2012 – 2013

In 2012 D*Haus were delighted to deliver their first solo show – “The Narrow Path” held at London’s Anise Gallery, the show brought together the D*Table, the D*Light, the High*Light and D*Prints alongside the Dynamic D*Haus. To commemorate the launching of the exhibition we commission a new video of the D*Haus dynamic. The Narrow path is a metaphor for a direction in our design and our work to date, We feel that our journey through design and architecture is hard and we make mistakes, wrong turns and go down dead ends, but you learn more from your mistakes than your successes.

in 2013 the path had a very risky turn, we decided to follow on from our first solo show with a brave and bold Kickstarter campaign, Kickstarter for those who do not know is a crowdfunding platform, we Launched the D*Table on Kickstarter because it meant we could then take pre orders as finding the £50k start-up costs for the tables to be made up front was nearly impossible, People were able to pay for the table up front and when we got to our commercial goal we then could press the button on the first ever D*Table batch!


From the publicity and successful Kickstarter campaign, D*Haus were sponsored by the GRAND DESIGNS LIVE trade show and CNC cut online, this was a giant push from us in our dream to build the first Dynamic DHaus, For the shows in London, Birmingham and Manchester, we made a 1:5 scale working model of the dynamic house which meant the crowds at the shows could experience the model, opening and closing and fully interact with it by touching and moving the architectural pieces from square to triangle.

As part of the show’s publicity, we were invited by the BBC One show to come and explain to the nation live the building concept, the presentation on live TV was helped along by the lovely BBC one presenters who were amazing at calming our nerves alongside Mr GRAND DESIGN himself Kevin McCloud.