After the construction of the Anna Paulownapolder an office of the water board was built in Kleine Sluis. The stately home is locally known as ‘Polderhuis’. In 1885 the ‘Poldertuin’ around the house was designed by landscape architect Jan David Zocher jr., who also designed the Vondelpark in Amsterdam and the garden of Soestdijk Palace. His gardens are characterized by winding paths and water features with bridges.

‘Polderhuis’ (nowadays privately owned) and ‘Poldertuin’ were sold to the municipality. The ‘Poldertuin’ is still owned by the (new) municipality of Hollands Kroon. Since 2014 the garden is managed by a foundation. In autumn volunteers plant about 220.000 flower bulbs, which are blooming between early April and mid May. The flower bulbs are donated by bulb growers from the region.

The ‘Poldertuin’ with its large variety of tulips, daffodils, hyacinths and special bulbs and tubers is also called ‘Little Keukenhof’ and can be visited free of charge.