german architecture firm philipp architekten has developed a mobile office-box concept called ‘werk1’ in heilbronn, germany. the addition to the heritage villa creates a unique contrast between contemporary and historical architecture, while maintaining the perfect balance and visual harmony.

its black color and modular design on the exterior accentuate its contemporaneity 



philipp architekten‘s mobile extension serves as an additional work space and think tank. it stands out with its black color and modular design on the exterior, and with its rustic workshop character in the interior. the extension returns the building to its structural origins dating back 1811 by closing a gap left over from the reconstruction period following the second world war. 

the addition to the heritage villa creates a contrast between contemporary and historical architecture



extending a historic property like the villa mertz was a challenge for the architects: on the one hand, with respect to the overall historical image, must remain coherent, and on the other, the necessity of obtaining municipal approval. inside, the seating and workplaces in the new space are deliberately designed for flexible use as a think tank, a meeting room or even a retreat. the floor, ceiling, walls, tables and every other piece of furniture in the room is made of OSB panels, a very simple, but genuine material. 


video © philipp architekten – anna philipp

the floor, ceiling, walls, tables and every other piece of furniture in the room is made of OSB panels

a large contrasting window overlooking the estate

the extension returns the building to its structural origins dating back 1811

the modular concept by the architecture firm

a suspending module

an additional extension concept

initial villa merz plans

the installation of the module



project info:


awards: winner of the best architects ’17 and award nominee for the ‘german design award ’17’
client: lingner consulting new media gmbh, heilbronn/ germany
manufacturer: baukunst philipphaus, untermünkheim architect
light planning, furniture and fixtures: anna philipp – philipp architekten, waldenburg, germany



designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.


edited by: lynn chaya | designboom


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