Queensland defers mandatory NCC 2025 adoption to 1 May 2027, keeping voluntary all-gender toilet pathway available from 1 May 2026

Queensland will not make the National Construction Code 2025 mandatory until 1 May 2027, deferring the state-level obligation by twelve months from the national publication date. Voluntary early adoption of NCC 2025 has been open in Queensland since 1 May 2026, meaning projects that choose to opt in now may use the code's new all-gender sanitary facility provisions immediately. NCC 2022 remains the operative standard for all other building work in the state until 30 April 2027.^[1]

What NCC 2025 Part F4 actually introduces

The Australian Building Codes Board published the final NCC 2025 on 1 May 2026, incorporating a voluntary Deemed-to-Satisfy (DTS) pathway for all-gender sanitary facilities in Class 3-9 buildings - the commercial, institutional, and public-assembly classes that cover offices, schools, hospitals, shopping centres, and sports venues. The pathway sits in Part F4 of Volume One.

The DTS option is not a mandate. Under the new provisions:

• Buildings required to provide one pan per sex may replace both with all-gender facilities, meaning no gendered toilets are required in that scenario.
• For buildings requiring four or more pans or urinals, up to half of both the male and female fixtures may be designated as all-gender.
• Each all-gender compartment must contain one closet pan and one washbasin within the same enclosed space - the shared-basin arrangement common in older unisex blocks is not permitted under this pathway.
• Multi-cubicle or open-plan all-gender bathrooms mixed with gendered cubicles are explicitly excluded from the DTS option.

NCC 2025 also increases the required ratio of female closet pans in Class 9b single-theatre auditoriums and makes sanitary product dispensing machines mandatory in all-gender and female facilities - changes that apply independently of whether a project uses the all-gender DTS pathway.

Why Queensland deferred

Queensland cited industry capacity pressures and the strain of delivering the federal government's 1.2-million-homes housing target as reasons for the twelve-month deferral. The state has also indicated it will retain a substantial set of state-based variations in Schedule 7 of the adopted code when mandatory adoption does take effect, including provisions for the continued use of gas in new commercial buildings.

The deferral is consistent with the approach taken by New South Wales, which also pushed mandatory adoption to 1 May 2027. Both states allow voluntary early adoption from 1 May 2026 for projects that choose to proceed under the new edition.

How adoption varies across jurisdictions

The fragmented national picture creates compliance complexity for firms working across state lines:

• Victoria - adopted NCC 2025 from 1 May 2026; state-based variations reduced from 115 under NCC 2022 to 60.
• ACT - adopted from 1 May 2026 with a six-month transition; NCC 2025 mandatory for all new approvals from 1 November 2026.
• Western Australia - adopted from 1 May 2026 with a twelve-month transition; most permit applications can still be assessed under NCC 2022 until 1 May 2027.
• South Australia - adopted Volume Three (Plumbing Code) only from 1 May 2026; Building Code volumes deferred to 1 May 2027.
• New South Wales - mandatory adoption deferred to 1 May 2027; NCC 2022 applies until then.
• Queensland - mandatory adoption deferred to 1 May 2027; voluntary early adoption available from 1 May 2026.
• Tasmania - paused NCC 2025 adoption through proposed state legislation; has confirmed it will not implement the all-gender sanitary provisions.
• Northern Territory - initially confirmed adoption then reversed the decision; NCC 2022 continues to apply.

What to watch

Queensland's mandatory adoption date of 1 May 2027 is the next firm trigger for the state's building and construction industry. The state's Schedule 7 variations - including the gas-use provisions - have not yet been finalised in their adopted form, and the authority having jurisdiction will determine how those variations interact with the all-gender DTS pathway when mandatory adoption takes effect. Designers and certifiers working on Class 3-9 projects that will be lodged or permitted after 30 April 2027 should begin reviewing Part F4 compliance pathways now, particularly for large-venue projects where the female-pan ratio increases and sanitary dispensing requirements will affect fixture counts regardless of whether the all-gender option is used.