Is this street really access=private?

Strava trace implies "open to public".

If not an adopted highway, access=permissive may be more appropriate.

Is this stretch of Merrington Road also known as St Cuthbert's Terrace?

Etherley Lane Nursery School?

Health centre / doctors surgery?

Highside farm camping?
http://www.highsidefarmcampingglamping.co.uk/

High Flatts farm camping site?

Sign for Woodside Lodge caravan and camping. Probably this:
https://www.campingandcaravanningclub.co.uk/campsites/uk/county-durham/wheatley-hill/woodsitelodge/
Imagery needs to catch up?

Public conveniences?

Clarify businesses. Caravan storage + caravan repair (Cara-vet)?