The estate included roughly the area between Nunspeet railway station and Vierhouten, with remains of the park still visible in the form of ponds surrounded with Rhododendron bushes and a Honey locust.
Frank van vloten constructed a 600 mm (1 ft 11+5⁄8 in) pony-drawn tramway from his estate to Nunspeet railway station.
The house and its surroundings became now property of Staatsbosbeheer and started deteriorating, other parts of the estate were clearcut by a local forester.
Articles published in 1976 and 2006 speculated that Frank van Vloten organised orgies and occult rituals at the Round House.
In 2012 a controversial book was published which stated that Frank van Vloten was a member of a Pan-Germanist cult[2] and the publication attracted some media coverage.
There are absolutely no grounds to suspect Frank van Vloten as a pan-German occultist and a lot of written statements have proven that nothing out of the ordinary happened in the extraordinary house.