Single sinsheim - Dating welsh houses
Focussing on the overall style gives an unreliable date; some styles such as Queen Anne were popular for long periods, and others came and went in popularity.
Beware of the compilation dates of each of these sources.
The census records, currently available for 1891, 1881 and previous decades can be used for an approximate date.
This information may be on the deeds or referred to in a local history book.
If this information is not available, or you just want an approximate date, unless there is a date mark on the house or a similar neighbour, you will have to resort to the style of the building.
Some houses have a recognisable style; they have clear Georgian, Gothic or Arts and Crafts features, for example.