Through early years of the twentieth century, restrictions were sometimes attached parcel-by parcel as covenants to deeds of sale. Such covenants were included in both transfers of individual parcels and (as in the 1893 example on Minerva Avenue below) in sales of blocks or partial blocks from landowners to small-scale developers. These lot-by-lot restrictions accounted for a small share (just 6.1 percent) of all restricted parcels and many were later absorbed by or included in larger scale subdivision or neighborhood restrictions.
