A Stadstimmerhuis (translated literally: "city carpentry house") is the office of the municipal service that deals with building and construction.

[2] Then, from the early 1940s to 1953, the Stadstimmerhuis was located as an emergency building near the cattle market, between the Warande and the Goudse Rijweg, on the Boezemweg.

It features gabled roofs and chimneys, giving it a traditionalist look, but it was also considered progressive, due to the concrete skeleton, flexible ventilation system and self-service elevators.

In 2009, a call for proposals was issued to design a new wing, in which five architectural firms took part (Claus and Kaan, Mecanoo, Meyer and Van Schooten, OMA and SeARCH).

OMA's design was selected by a professional jury and is described as 'a shapeless pile of pixels', 'a building like a kind of cloud'.

On the ground floor, between the towers, is an atrium with a publicly accessible pedestrian passage (Halvemaanpassage) that connects Haagseveer with Rodezand.