In the 1911 census it tells us that they had 10 children and 10 were still living. This can indicate a certain wealth and good health.
Another example: the family of 10 (ie 8 children) lived at 736 Romford Road* in the 1901 census, at the “Range Maker’s Shop”.
In 1891 they were living in White Post Lane, Little Ilford, at the Ironmongers Shop.
All these little clues add to the bigger picture.

* the building you can see at this address via a google search would bear no resemblance to the building in which your family lived.
Compare the side by side maps:
https://maps.nls.uk/geo/explore/side-by-side/#zoom=19.125837646902422&lat=51.55262&lon=0.05351&layers=168&right=BingHybThe current 736 Romford Road is between Fourth and Third Avenue. Looking at the property on google street view you can see some of the neighbouring properties which are older - 736 is likely to have originally looked something like these, though there are even differences in style of the older buildings. 736 is larger, so over the years your family probably purchased and combined neighbouring properties to make what you see today.