Interestingly there's also a sign for Royston Parade at the junction between the cycle path and Royston Gardens, so I suspect this length of cycle path is probably known as Royston Parade, and Royston Lodge is a building on it.

https://www.mapillary.com/app/?pKey=1387512685402222&focus=photo&lat=51.5755271&lng=0.0429805&z=1.5&x=0.40272997662967325&y=0.5522692226803926&zoom=2.9184549356223193

(though confusingly, properties in Roding Lodge often seem to list Royston Gardens as the street on property sales sites etc)