There is a road sign here naming this stretch of road as "Greygates". What are the limits of this stretch?

The access to this route is via a private fence - a message from the landowners, hikers/walkers are not permitted to access

NO PARKING

NO ACCESS BEYOND THIS POINT PRIVATE PROPERTY

PRIVATE ENTRANCE NO ACCESS

Unable to answer "What is the house number of this building?" for way/270248254 via StreetComplete 32.0:

looks like small house extension

onosm.org submitted note from a business:
name: The Groovy Smoothie
phone: 0872863960
website:
twitter:
facebook:
email:
hours: Monday-Sunday 10am-7pm
category: Juice Bars & Smoothies
address: mountview shopping centre

Is this actually Jordanstown Road?

Unable to answer "How does this path cross the barrier here?" for node/890998513 via StreetComplete 52.0:

There is no entrance here.

Sheffield bike stands here have been removed