The accuracy of state heritage register listings have been called into question after the discovery and whether other properties may also be incorrectly listed with Heritage Minister Will Hodgman being urged to launch an urgent investigation.

The site of the convict station was discovered at a new Kings Meadows location late last year on land previously approved for a residential subdivision and has since received a new nomination for heritage listing.

The already-registered site is located further south in Relbia a DPIPWE spokesperson would not say whether the landowner had been contacted, or what the implications of an incorrect listing may be.

It is standard practice for the entries held in all Australian Heritage Registers to be reviewed and updated, where it is warranted, the spokesperson said.

This may be to reflect changes that have occurred to a place that need to be recorded or the inclusion of new information that comes to light.

Labor environment, parks and heritage spokesperson Ella Haddad thought there was unnecessary confusion surrounding the heritage register and said the government needed to identify how wide-ranging incorrect or missing entries were.

Heritage values are vital in Tasmania and landholders need correct and up to date information, she said.

With serious questions about the accuracy of information on the register being raised, the Premier who has responsibility needs to launch an urgent investigation.

Responding to questions about what impact a previous listing may have on the current nomination, the DPIPWE spokesperson said that application was being considered and research had been initiated to confirm the sites significance.

It is inappropriate to comment on the potential outcomes of an ongoing assessment, the spokesperson added.

Greens leader and heritage spokesperson Cassy OConnor repeated calls for Mr Hodgman to immediately stop works on the Kings Meadows site until it can be protected.

An administrative inaccuracy and a Premier without the courage to stand up to a developer cant be the benchmark for heritage protection in Tasmania.

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