Found via a My London article (The unique South London road where residents built their own council houses - MyLondon), the following Instagram post gives a little of the background to some of the unique buildings of #walters-way and #segal-close :
Archived on 6/5/2022
The pioneering self-built homes of Walters Way & Segal Close
ForestHull
24 Aug '21
HannahM
24 Aug '21
I assume they had excluded the cost of materials. The materials alone for refitting our small bathroom cost about £2,500.
ThorNogson
24 Aug '21
They are an interesting set of houses. Participating again this year in the Open House weekend. You can book a free tour.