The destruction of the "exceptional" heritage interiors of a rare 1840s terrace has prompted the National Trust to again urge the state government to cease the outright sale of hundreds of public housing properties in Millers Point.

Clive Lucas, the NSW president of the trust, made the appeal directly to Premier Mike Baird this month in a letter arguing the government's assurances about the protections in place for the state heritage listed properties had been "proven wrong" by the damage done to one of Sydney's oldest homes.

The government has announced it will speed up the sell-off of the area's public housing. Credit:Wolter Peeters

In December, the Land and Environment Court NSW ordered Lloyd Adams to pay a $60,000 fine, as well as the City of Sydney's $35,000 court costs, after he caused irreversible damage to a colonial Georgian terrace house within a week of finalising the purchase of the 30 Argyle Place property for $1.71 million in 2014.

Mr Adams had removed internal plaster, skirting boards and other material of "exceptional" significance - and continued to do so even after the council's heritage officer directed him to stop.