It is one building, and there are several households separated by a / across the third line.
HO107; Piece: 1230; Book: 3; Folio: 42; Page: 19.
Just for interest the different households were separated by different symbols in the various censuses.
The household on the census page.
In 1841 the beginning of the first 'family' coincided with the beginning of the house but its end was signified by a single oblique stroke on the dividing line between the houses and names columns. The next 'family' then began, ending with a single stroke unless it happened to be the last household in the house when the end of a house was marked with a double stroke. In 1851 the end of the 'family' was marked by a line across the page, similar to that indicating the end of a house, but only running across part of the second column, as well as the third and fourth. The line for the end of the house ran completely across the first four columns. In addition the beginning of a new household was marked by a new schedule number in the column provided for that purpose. The conventions in the following censuses were a mixture of those of 1841 and 1851. From 1861 onwards oblique strokes were used in the same manner as 1841 but the beginning of each household was also marked by a new schedule number. In 1841 and 1861 the oblique stroke sloped from left to right but this was reversed from 1871 onwards. The 'short line' was only used in 1851.
From "Making Sense of the Census" Edward Higgs