Räntmästarhuset, Apartment building in Gamla stan, Stockholm, Sweden

Räntmästarhuset occupies the entire Achilles block at Skeppsbron 48, the corner of Slussplan and Skeppsbron in Stockholm's Gamla stan. The 1680s facade toward Skeppsbron had five window axes and the side along today's Slussplan probably eight, divided by pilasters linking the two tall storeys above a rusticated ground floor, with a lower attic under the roof. A medallion of Carl von Linné sits on the south facade.

In March 1660 the räntmästare Börje Cronberg bought two stone houses east of Söderport and began building in 1663; a neighbour complained about the piling and the height, and Cronberg had to pay 500 daler in copper coin. Nicodemus Tessin the Elder probably designed the house, which was completed in 1688. In 1683 it passed to Count Nils Nilsson Brahe, and from 1739 to 1742 Carl von Linné had his medical practice here.

The block takes its name from Achilles, the hero of Homer's Iliad, part of a 17th-century scheme naming Old Town blocks after Greek and Roman mythology. A medallion of Carl von Linné on the south facade recalls his medical practice in the house from 1739 to 1742. Tradition holds that Emanuel Swedenborg took over Linné's flat when Linné left for Uppsala in 1741, though the parish register does not confirm it.

The building fills the Achilles block at the corner of Skeppsbron and Slussplan in Gamla stan, not Östermalm. The waterfront side faces the quay and the Slussen locks; the opposite facade runs along Järntorgsgatan. The surrounding streets are paved and level, with kerbs and cobbles to watch for.

The building is named after Börje Cronberg, who was appointed räntmästare in 1653, an older title for a manager of the public treasury; he was ennobled in 1654 and bought the two stone houses east of Söderport in March 1660. A medallion of Carl von Linné, who had his medical practice here from 1739 to 1742, sits on the south facade.