Mae'r dystiolaeth yn gymhellol o blaid nad oes rheswm da dros osod rhent tir ariannol mewn lesoedd. Mae'n anochel bod gwneud hynny, yn enwedig pan fo'r rhent yn uchel neu pan fo'r telerau'n feichus, yn arwain at ganlyniadau gwael i lesddeiliaid. Nid yw rhenti tir yn rhoi gwerth i lesddeiliaid, ac os ydynt yn cynyddu, gallant fod yn anfforddiadwy dros amser. Bydd yr Aelodau'n ymwybodol o'r defnydd o gymalau niweidiol penodol am renti tir sy'n dyblu. Gall telerau rhenti tir beichus beri i gwmnïau morgeisi beidio â bod yn awyddus i gynnig morgais. Ac o ganlyniad i hynny gall fod yn anodd i lesddeiliaid werthu eu heiddo. Gall rhent tir uchel neu gynyddol hefyd gael effaith andwyol ar y gost i lesddeiliad sydd angen neu sydd eisiau ymestyn ei les neu brynu ei rydd-ddaliad. Ac mae hynny'n eu hymrwymo i'r les i bob pwrpas drwy wneud costau rhyddfreinio'n anfforddiadwy.
The evidence is compelling that there is no good reason for the imposition of monetary ground rent in leases. Its use, especially where the rent is high or where terms are onerous, inevitably leads to poor outcomes for leaseholders. Ground rents do not provide value for leaseholders and where they escalate, they can become unaffordable over time. Members will be aware of the use of particularly pernicious doubling ground rent clauses. Mortgage companies can be put off by onerous ground rent terms, and this can leave leaseholders unable to sell their properties. High or escalating ground rent can also have a compounding impact on the cost for a leaseholder who needs or wants to extend their lease or purchase their freehold, effectively trapping them in the lease by making enfranchisement unaffordable.