Short answer
AI consent application completeness checks read an incoming building or resource consent application, compare it with the council’s lodgement checklist, and list missing or inconsistent items with page references before an officer accepts it. In New Zealand the officer still decides: the Building Act 2004 and the Resource Management Act 1991 set the clocks and the information tests, and the AI only prepares the evidence.
- The AI checks that documents are present and consistent; officers decide completeness.
- Building consent: the 20 working day clock starts on receipt of an application that meets section 45.
- Resource consent: an incomplete application can be returned within 10 working days, with written reasons.
- The RMA still governs resource consents lodged during the Planning Act 2026 transition.
What a completeness check does, and what it does not
An AI completeness check reads the application bundle (forms, drawings, specifications, reports) and produces a checklist: each required item, whether it was found, where it is, and anything that contradicts something else. It does not assess whether the design complies with the Building Code or the district plan. That is processing, and it stays with qualified officers.
The value is speed and consistency at the front desk. Every application is checked against the same list, in the same order, with page references an officer can verify in seconds.
The completeness check at a glance
- Inputs
- The application form, plans and specifications, producer statements, records of title, assessments of environmental effects, written approvals, and the council’s current lodgement checklist for that consent type.
- Systems
- The council’s consent portal, its document management system, an extraction step that reads text and drawings, and a rules layer holding the checklist.
- Steps
- Split and classify each document; extract fields such as address, legal description, licensed building practitioner names and fee payment; compare against the checklist; flag gaps and inconsistencies with page references; queue for an officer.
- Human review
- A lodgement officer confirms or overrides every flag before the application is accepted, returned or sent for further information.
- Outputs
- A completeness report attached to the file, and draft wording for any return or information request, which the officer edits.
- Measures
- Missed gaps found later in processing, false flags per application, officer minutes per lodgement, applications returned or put on hold.
- Risks
- A missed gap accepted as complete, a wrongful return, an out-of-date checklist, and misread scanned drawings.
Illustrative example: a district council lodgement desk
Illustrative example: a district council (synthetic figures) receives 160 building consent applications a month. Assumptions: a manual completeness check takes 35 minutes, an officer confirming an AI-prepared report takes 15 minutes, and 40 applications a month currently reach processing with a gap that triggers a request for further information.
| Measure | Manual | AI-prepared, officer confirmed |
|---|---|---|
| Officer time at lodgement | 160 × 35 min = 93 hours | 160 × 15 min = 40 hours |
| Gaps found only in processing | 40 a month | Target: under 15, to be proven in shadow testing |
| Clock suspensions from those gaps | 40 | Fewer, if the target holds |
The 53 hours a month is the easy number. The larger gain is fewer suspended clocks, but treat it as a hypothesis until a shadow run on past applications proves it.
The legal tests the check supports
- Building consent. Section 45 of the Building Act 2004 lists what an application must contain, including the prescribed form, plans and specifications, any other information the building consent authority reasonably requires, fees, and the names of licensed building practitioners for restricted building work. Section 48 gives 20 working days from receipt of an application that complies with section 45 (10 for national multiple-use approvals), and a request for further information suspends that clock.
- Resource consent. Under section 88 of the Resource Management Act 1991, a consent authority may, within 10 working days of lodgement, determine an application is incomplete if it lacks the Schedule 4 information, and must return it immediately with written reasons. Since October 2025, section 88(2AA) and (2AB) make the required detail proportionate to the scale and significance of effects.
- The transition. The Planning Act 2026 received Royal assent on 30 September 2026. Its transition period starts one month after assent, and applications lodged during it are processed under the RMA as in force at lodgement. As at 19 October 2026, the section 88 test still applies.
What stays with the officer
The proportionality call is the clearest example. Whether a short assessment of effects is enough for a minor activity is a judgement section 88(2AB) gives to the consent authority, not to a model. So is the decision to return an application, the written reasons, and any request for further information. Returns can be challenged through the objection process in sections 357 to 358, so the reasons need a named officer who can stand behind them.
Where completeness checks fail
| Failure | Cause | Control |
|---|---|---|
| Missed drawing | Several sheets merged into one PDF | Sheet-level classification and a page count check |
| False “missing” flag | Item present under an unusual title | Officer override is logged and feeds the test set |
| Stale checklist | Checklist changed, prompt did not | Version the checklist and record it on each report |
| Misread scan | Handwritten forms or low-resolution plans | Route low-confidence pages to a person; see OCR versus vision models |
| Invented detail | Model fills a blank LBP number | Structured outputs with validation; blanks stay blank |
Costs and a sensible first step
Cost depends on document variety, scan quality and portal integration far more than on model usage. Start in shadow mode: run the check on 200 recently processed applications where the real gaps are known, and compare. Put confirmed reports in an officer review queue before anything reaches applicants. Our AI document processing service builds this kind of extraction.
Councils often run this alongside public information search and public consultation theme analysis; the local government guide explains the order we would tackle them in.
Sources
- Building Act 2004 (version as at 1 October 2026), New Zealand Legislation, 2026
- Resource Management Act 1991 (version as at 12 September 2026), New Zealand Legislation, 2026
- Planning Act 2026, New Zealand Legislation, 30 September 2026
Written by the Levy Street team in Wellington. Last updated 19 October 2026.