The Tredegar estate appears to have made allotments available in a number of parishes, over and above the allotment gardens at Mendelgyf on the outskirts of Newport. The allotment leases have been arranged by parish, town, village or allotment garden: Aberbargod, Basaleg, Bedwas, Bedwellte, Caerphilly, Crosskeys, Machen, Marshfield, Belle Vue, Mendelgyf, Mynyddislwyn, Newport, Rhiwderyn, Risca, Rogerstone, Rumney, St Woolloos, Shirenewton and Wattsville.

Mendelgyf, Alteyrn Road, Queens Hill and Milman Street allotments. The Alteyrn Road and Queens Hill accounts end on 1 June 1938, being leased to Monmouthshire County Council of Allotments and Quarter Acre Holdings Ltd from 2 Aug. 1938.

Mendelgyf and Belle Vue allotments