The early 1909 photo (below left) shows no 11 still with a thatch roof. The appearance was of a well proportioned house with traditional central doorway with the four windows evenly placed, although the house behind the frontage is actually wider as the angle of adjoining no.13 means both houses broaden behind the frontage.

 

This would suggest that any previous vernacular building here was either completely replaced, or had major alterations with a new frontage before any photographic evidence we see.

There was a notice (below) apparently published in the local paper in 1919, with the 100 year old report of a fire in 1919 in a thatched cottage in Castle street.
As far as I can see from other old photos, no.11 was the only thatched building left in Castle street after around 1909. So perhaps that notice referred to this building, although I have seen nothing else to suggest this had been the 'old post office'?

 

Once the roof was changed to tile, possibly in 1919, little seems to have changed from the Castle street view, apart from the addition of a small cantilevered porch, which first shows in the 1940s photo (above right - the current porch is only slightly different) and the inevitable new windows, but keeping the size as before.

Introduction

This is Castle Street
(for those who don't know it)

Why is Nether Stowey here?

How did the buildings develop?

A look at today's individual buildings
what can we learn from what we see?

Building materials
a look at the building elements