[Acrylic-bob]

Thanks for that Tealeaf.

Two points stand out.
"Terrace houses that are built on hills tend to be stepped, each with a cornice or parapet lower or higher than it's neighbours. The Darwen houses are distinct because the roofs form a continuous slope the length of the terrace."

and

"They can at least take heart from nearby Nelson. Here a compulsory purchase order to bulldoze an area of similar traditional stone built terrace housing was challenged and the houses are now being refurbished."

I have the full article and can make it available if anyone is interested. PM me your email address.