Canberra Liberals treasury spokesman Alistair Coe will call for the independent inquiry to be established on Wednesday, raising the construction sector to the ACT's equivalent of a royal commission.

In broad terms of reference to be considered by MLAs, Mr Coe calls for consideration of government agencies involved in the sector, its contribution to the ACT economy and the state of industrial relations in the territory.

The motion also calls for ACT Chief Minister Katy Gallagher and Opposition Leader Jeremy Hanson to ''agree on the person, or people, appointed to conduct the inquiry.''

In order to be established, the proposal would require the support of the Labor MLAs and Green Shane Ratternbury.

Mr Coe conceded he did not know how the MLAs would vote.

''The construction sector is one of the driving industries here in the ACT,'' Mr Coe said.

''It is vital that we have the conditions right to foster the industry so that they can put money into the economy, employ people and all the other positive spin effects that come as a result of that.''

Mr Coe said the government had brought about conditions that are not conducive to investment in the territory, compounding challenges of high fees and complex planning laws.

''Hopefully an independent inquiry will make positive recommendations about the best ways to bring about a change in those conditions,'' he said.

Trade unions and industrial conditions would form part of the inquiry's scope.

''I am hopeful too that the government recognises that there is a problem with the sector at the moment,'' Mr Coe said.

''I think it is largely of their making but I hope that they are not so stubborn that they don't see an opportunity through this inquiry to get some independent advice about how to make amends of the things they've created.''

The move comes after last month's announcement of a two-year stimulus package including changes to lease variation fees, extended timelines for commence and completion charges and the release of civil works contracts in Canberra's north.

Attorney-General Simon Corbell said new laws passed by the Assembly on Tuesday would enable consumers to access details of construction licences and corporations' compliance history. The legislation establishes an online register of licence information.

''Information will include conditions, suspensions, cancellations and other disciplinary actions that may apply to a licensee,'' Mr Corbell said.