Mandeville Houses, Mantell Street, Islington. Looking south-west. (What is now Sainsbury's next to Chapel Market)
There is a bit of information in the link above.
This is where my dad and his siblings grew up before my nan and grandad were relocated and moved up to Bride Street because the flats were being demolished to make way for the big Sainsbury's store in 1980.
Here is also a bit about Toldpuddle Street.
In 1982, construction commenced on the Culpeper link-road, which was later renamed Tolpuddle Street upon its completion in 1986. This new route provided faster access between Liverpool Road and Penton Street, replacing two existing residential roads: Mantell Street (previously Sermon Lane) and Culpeper Street (previously Albert Street). The street’s name commemorated the 150th anniversary of a celebratory dinner at the White Conduit House, marking the remission of sentences against the Tolpuddle Martyrs, who had received substantial local support two years earlier. The south side of the street served as car parking areas for several years.
Beneath Tolpuddle Street, the car park and Liverpool Road lies the Islington Tunnel of the Regent’s Canal. This 960-yard brick-lined tunnel represented the canal’s most ambitious engineering project, tunnelling under both Islington Hill and the New River. The tunnel was designed by James Morgan, the canal’s engineer, who specified a 17 ft-wide horseshoe vault constructed over a brick invert.
The tunnel’s construction, which primarily took place in 1815, progressed from west to east using direct labour. At the time, the northern section of Pentonville consisted mainly of open land, providing adequate space for a construction depot and multiple construction shafts from which different tunnel sections were built. The tunnel became operational alongside the canal in 1820.