State Law Building, Skyscraper and heritage site in Queensland, Australia.

The State Law Building is a 128-metre, 30-storey office tower at 50 Ann Street in Brisbane's central business district, completed in 1977 and refurbished in 1995. It houses offices of the Queensland Department of Justice and other government agencies, and stands near the Queen Elizabeth II Courts of Law and the Commonwealth Law Courts.

Completed in 1977 as Comalco House, the tower carried aluminium external cladding supplied by its namesake aluminium manufacturer. Local firm Conrad Gargett & Partners oversaw both the original construction and the 1993 refurbishment that removed the cladding. A complete renovation followed in 1995, when an upper section was added and the height rose from 110 to 128 metres.

Locals and the media call the tower the "Batman Building" or "Gotham Tower" because its dark upper section recalls the fictional city of DC Comics. The nickname dates from the 1995 refurbishment, when the top was added and the height rose from 110 to 128 metres.

The State Law Building stands at 50 Ann Street in Brisbane's central business district, near the Queen Elizabeth II Courts of Law and the Commonwealth Law Courts. It is a working government office building, so access is generally limited to staff and visitors with business there; check the entrance for public areas before going in.

The building's 1995 refurbishment added an upper section that raised its height from 110 to 128 metres, giving it the silhouette locals compare to Gotham City. Its aluminium cladding, fitted because original tenant Comalco made aluminium, was stripped in the 1993 refurbishment.