steel sunroom

serre utrecht

In collaboration with RHAW Architecture we designed this generous sunroom. Our custom build window frames made from steel and wood makes this expansion a beautifull addition to the wooden house.

the all black bolenius chair

bolenius chair black

Hiding under a black paint finish, the design of the Bolenius chair gets an even more emphasised character. A beautifull addition to this design series.

Steel orangery


Natural light and extra additional space. This extension combines the kitchen and livingroom and connects them with the garden. De construction is made of steel and wood. The Kitchen is also custom made by sannenjacobs.

The construction of the glasshouse is completed


This extension measures almost five meters in lenght and feels like a sunroom. To enhance the feeling of being outside the entire front can be moved aside and eight rooflights can be opened.

The glasshouse under construction

This “Glasshouse” is inspired by greenhouses, the build is almost complete.

Views on the Indonesian delta city of the future Jakarta

After losing the battle for space with Jakarta the swampy floodplains of the Ciliwung river have almost disappeared. With it the natural roots of the delta existence are dissolving as well as many historical and socio-cultural values of the Indonesian city life. Tanah Antara is an attempt to re-establish the connection between sustainable water management and a densification model for existing kampongs that could remain the backbone of the Indonesian city. With this project Ruben Sannen Graduated at the Academie van Bouwkunst in Rotterdam in 2014 as Architect. More info on

Steel orangery in production

The parts of a steel orangery are beginning to take shape. Behind Joep stands the main sliding door.

Dutch Design Week 2014

We will present an overview of our projects During the Dutch Design Week in Eindhoven as part of the Young Talent expo at Piet Hein Eek. The expo is open from the 18th of October until the 26th of October.

Wall cabinet

This is a custom made wall cabinet made from ash wood and common steel profiles. A simple construction method is chosen in which a steel frame shows itself inside and outside.

The Bolenius chair combined with solid wood

As a addition to the Bolenius chair the chair is now available with frames made of solid wood. Different kinds of wood can be chosen such as, Oak, Ash, Cherry and Nut wood.  In this case we have chosen to combine the darkgrey seat with a dark Mansonia wooden frame.