In the beginning of the 17th century, a customs system was introduced in Sweden. Import tax became payable on all "edible, durable and necessary goods" that would be sold in the cities. In Stockholm, a customs station was placed on Långholmen island because here the passage from Lake Mälaren to Stockholm was at its narrowest. The smaller waterways were blocked with rows of poles so that the customs could not be skipped. The officers had fast sailing yachts at their disposal for chasing those boats that "forgot" to pass through the customs and pay the tax.

The customs office was originally located on the northern side of the island near today’s beach Långholmsbadet, and in 1752 moved to this wooden house also known as Lilla Sjötullen (“the small marine customs office”). In 1785 the customs office moved again, this time to a two-storey stone building which became known as Sjötullen (“the marine customs office”) or Stora Sjötullen (“the big marine customs office”) - read more here https://reveal.world/story/1243 

After the move, this house was rented out to various tenants. In May 1800, a man named Peter Lundberg moved in. He cleared up, blasted mountains and created a beautiful garden with fruit trees down towards Lake Mälaren. But it was Henrik Tiselius, a tobacco dealer and tenant from 1848, who gave the house its present appearance and named it Henriksvik.

In 1872, the house was sold to the Prison and Probation Board and used as a residence for prison officials such as the pastor, teacher and prison assistant. The garden was used by tenants for both cultivation and socializing. In the 1930s, the Stockholm University "pastoral club" had its headquarters here. Among other things, the poet Ruben Nilsson wrote his song The Green Island in Henriksvik's garden.

In the autumn of 1954, the house became a regional office for prison care and served as such until 1978 when it was left empty until 1992.

Today, Stora Henriksvik houses a pleasant cafe and a little museum of Carl Michael Bellman, Swedish songwriter, composer, musician, poet and entertainer from the 18th century. He is a central figure in the Swedish song tradition and his influence on Swedish music, as well as Scandinavian literature, feels strong up to this day. 

Source: http://www.storahenriksvik.se/ (in Swedish only)