The diagrams illustrate the layout of a small museum and its surrounding grounds in 1990 and in 2010.
Overall, over the two decades the site underwent substantial redevelopment. The most notable changes include the replacement of the original cottage with a café, the consolidation and enlargement of exhibition spaces, the expansion of the shop and parking area, and the reduction of garden space.
In 1990, the museum comprised four compact exhibition rooms arranged in a square, with a store room occupying the north‑western corner and a small retail shop in the south‑eastern corner. A modest cottage stood in the south‑western corner, while a path ran diagonally from the entrance on the east side towards the centre. Beyond the northern perimeter lay a spacious garden interspersed with trees, and a car park flanked the east boundary.
By 2010, the cottage had been demolished and transformed into a café with outdoor seating, immediately adjacent to the museum’s main building. The four original exhibition rooms were merged into two larger halls, linked by a glass corridor; part of the former eastern exhibition space was absorbed by the shop, which more than doubled in size. The store room remained intact. Meanwhile, the car park was expanded southwards, extending into the former garden area at the north of the site, which was consequently reduced by roughly half. The diagonal path was also shortened, terminating at a new entrance plaza in front of the café.
These modifications collectively reflect a shift towards enhancing visitor facilities—particularly retail and hospitality—while streamlining exhibition spaces and accommodating greater vehicle capacity.