The Wijnkopersgildehuis facade is decorated with support arches (ontlastingsbogen) over the windows made of sandstone blocks.
The 1633 entrance gate is made out of natural stone and was designed by Pieter de Keyser.
The gate pediment depicts Pope Urban I, patron saint of wine cultivation and trade.
The guild room (gildezaal) in the achterhuis (back part of the house) measures 6 by 9 meters, and also still has the original floor beams.
Bridging the gap between the hall and guild room is a small stone stairway counting four steps.
An 18th-century gable stone has been added the back facade, on the inner courtyard, depicting a salamander surrounded by flames, a symbol traditionally used by apothecaries.
The building as it stands today was created in 1611, when the investor Claes Jansz Geus joined the three houses behind a single facade with three neck-gables.
The building was purchased in 1630 by the guild of wine buyers, who had it radically altered by the Amsterdam master mason Pieter de Keyser.
In 1633 the right wing of the building (Koestraat number 10) began to be used as guildhall, with a meeting room for the guild directors at the front, a new back wing with a communal guild room (gildezaal), large cellars for storage, and an entrance gate designed by Pieter de Keyser.
This gate originally depicted Bacchus astride a barrel of wine, but this was later replaced with an image of the saint Urban.