Eierhäuschen, Heritage building in Plänterwald, Germany

The Eierhäuschen is a former excursion restaurant on the bank of the Spree at the edge of the Plänterwald. The 1892 building, designed by Karl Frobenius, has red brick sections, half-timbered elements and a tall square tower with a steep slate pyramidal roof, an open upper gallery and a weathervane. A lower wing with dormers extends to the left, and a single-storey extension with a brick chimney sits to the right.

A collection and storage point for boatmen was established here around 1820, and a sailors' tavern followed in 1837. Fires destroyed the restaurant in 1869 and 1890; the present building, designed by Karl Frobenius, was erected in 1890–1892 in the country-house style with half-timbering and a tower. A veranda and large hall were added in 1902.

The name has two explanations: either the guard at the landing sold eggs to Spree boatmen, or a local rowing prize was a shock of eggs, which is why Fontane called it the "so oddly named Spreeschönheit". Since 2023 the upper floors are planned as artists' residences, and a beer garden with 360 seats opened beside the building.

The beer garden opened on 18 May 2023 with 360 seats across 6,500 square metres, and a new children's playground sits beside it. A boat landing on the Spree opened in summer 2023. The grounds lie outside the fenced Spreepark area, reached via Wasserweg, Pionierweg and Dammweg.

Two theories explain the name: either the guard of the boat landing sold eggs to Spree boatmen on the side, or the prize of a local rowing race was a Schock (sixty) eggs. Theodor Fontane has Melusine call the place a "palazzo" in Der Stechlin.