Frankfurter Haus, Cultural heritage building in Neu-Isenburg, Germany

Frankfurter Haus is a former forest ranger's house on Darmstädter Landstraße 741, at the border of Frankfurt-Sachsenhausen and Neu-Isenburg. Its core is a Baroque half-timbered building erected in 1701 within a walled enclosure as a forestry office, and it was extended in 1777. It is a protected cultural monument.

The free imperial city of Frankfurt built the forest house in 1702 to protect its city forest from wood theft. The foresters were also allowed to serve beer and wine, so the house became an inn where Neu-Isenburg residents came for Sunday dancing. In 1714 an order banned shouting, dancing and drinking for a fine of one or two guilders. In 1777 the forestry office and the tavern were separated.

The house takes its name from the free imperial city of Frankfurt, which built it in 1702. Foresters there were allowed to serve beer and wine, so it became an inn where Neu-Isenburg residents came for Sunday dancing; a 1714 order banned shouting, dancing and drinking for a fine of one or two guilders.

The house stands at Darmstädter Landstraße 741, on the boundary between Frankfurt-Sachsenhausen and Neu-Isenburg, and a Frankfurt tram has stopped in front of it since 1889. It is a listed building, so visits are limited to viewing the baroque timber-framed exterior and the 1777 extension from the street.

In 2003 the tenant, believing a waiter had robbed him, hired the boxer Willi Fischer to look into it. The house also had the right to serve beer and wine, and from 1889 a Frankfurt tram has stopped right in front of it.