Our three-day test pit dig at Oak House which ended today was a great success. Thirty three years ago a number of exploratory trenches were dug in the back garden of this grand old house and in one, the corner of a wall foundation was found. No further investigation was carried out at the time so our objective for this dig was to locate the structure and look for any dating evidence.
We know that the building was in existence in the 1840s since it's illustrated on the parish tithe map but it had been demolished by the late 1800s when the house was converted to a museum. After serving as 'pleasure gardens', the back lawn became a bowling green in the 20th century. The garden is now undergoing partial 're-wilding' with an emphasis on a sustainable wildlife habitat rather than formal mown lawns which have little environmental benefit.
While we didn't find anything in a sealed archaeological context to provide a date, we did locate our target and discovered a little more information.
The foundations consist of large sandstone blocks on top of which lies a 10cm (4 inch) thick 'pad' of sandstone fragments, tile and mortar, which is wider than the blocks. Why this overhang exists isn't clear but we plan to carry out a more extensive excavation in the near future which may answer this question and provide a date.
A 3D photogrammetry model can be found here.