Predict the RFI.
Draft the reply.

Every RFI, end to end. ARRO flags the items likely to draw a council RFI before you lodge, then reads the letters that do arrive and drafts council-ready responses - grounded in the real RFI practice of 40 New Zealand councils.

01 · Before you lodge

Pre-emptively flag your drawings for RFIs

Upload your drawing set and ARRO reviews it the way a council vetter would - surfacing the items likely to draw an RFI before you lodge. Every flag sits on the exact region of the sheet that raised it, tied to the NZBC clause it breaches, so your team can clear the list before the council ever sees it.

  • Numbered, severity-graded flags pinned to the drawing region
  • Each finding tied to an NZBC clause and MBIE Acceptable Solution
  • A verifier pass keeps the list short and worth reading
  • Multi-sheet PDF and specification ingest with sheet tracking
A-101·Ground floor plan
1:100 @ A1
1
2
3
4
5
A
B
C
D
E
4 200
4 200
4 200
4 200
Living
24.6 m²
Kitchen / Dining
23.4 m²
Stair4.6 m²
Hall
Bedroom 1
14.6 m² · master
Bath
7.8 m²
Bedroom 2
10.1 m²
Bedroom 3
10.8 m²
Garage
22.0 m²
RFI-014Stair
RFI-018Bath
RFI-022Kitchen
RFI-026Garage
RFI-031Bedroom 2
LR-01Living
0 - 2 m
Sheet
A-101
Scale
1:100
Rev
C
N
Scanning sheet…
0on this sheet
RFI-014·Stair
Crit
Handrail height not specified at landing.
D1/AS1 · cl. 6.1
RFI-018·Bath
Crit
Mechanical extract rate omitted.
G4/AS1 · cl. 2.3
RFI-022·Kitchen
Warn
Extract duct route unclear over hob.
G4/AS1 · cl. 2.4
RFI-026·Garage
Warn
Slab thickening detail not on drawing.
B1/AS1 · NZS 3604
RFI-031·Bedroom 2
Warn
Egress sill height exceeds 1100 mm.
C/AS1 · cl. 4.3.4
RFI-035·Wall R-3
Warn
Insulation R-value below schedule.
H1/AS1 · NZS 4218
LR-01·Living
Pass
All conditions met. 13 of 13 checks passed.
02 · Already got one?

Our RFI auto-response tool drafts the reply

When a council RFI lands, drop in the letter. ARRO extracts every ask, classifies it to its Building Code clause, grounds it against the plans and specs you actually submitted, and drafts a council-ready response with citations - hours, not weeks.

  • Every numbered item extracted and interpreted in plain English
  • Each ask grounded against your submitted drawings and specs
  • A council-ready reply drafted with a citation on every claim
  • Exported as a lodgement-ready bundle
RFI-104
Council response · Bayswater Townhouses
Received 2d ago
Parsing· 0 asks identified · 0 drafted
0.0 s
01
Clause 3.4(a)·Stair · NZS 4121
Provide updated stair calc with riser/going dimensions and handrail height.
Sourced fromA-201 · S-102
Drafted
02
Clause 4.1(c)·Bracing · upper level
Confirm bracing schedule and demand for the upper level.
Sourced fromS-201 · spec §4
Drafted
03
Clause 6.2·Use · basement
Clarify intended use of basement Room 02 and occupancy load.
Sourced fromConsent · §3.1
Drafted
Drafted responseLetter draft v3

We acknowledge receipt of council RFI-104 dated 24 May 2026. In response to cl. 3.4(a) please find the updated stair calculation on A-201, showing riser 180 mm, going 250 mm and a 1 000 mm handrail …

4 paragraphs · 6 citations
03 · Council-calibrated

Grounded in 40 councils' RFI practice

Both halves run on the same intelligence corpus - the real RFI practice of 40 New Zealand councils, drawn from published records and indexed with provenance, so a flag or a reply reflects what your council actually asks for.

  • 726 documented RFI triggers across 42 NZBC clauses
  • 464 regional overlay requirements - flood, geotech, liquefaction, and more
  • 40 councils indexed, from the Far North to Southland
  • Every requirement linked back to its source
0.0%
of Christchurch consent applications drew at least one RFI
9,960 applications processed
0.0%
of consents nationwide drew at least one RFI
143,022 applications processed
0 days
median time to answer an RFI, nationwide
ARRO drafts replies in minutes
0 BCAs
mapped at launch, with Wellington-region councils next
Christchurch · Selwyn · Waimakariri
Source: MBIE Annual Building Consent System Performance Monitoring, year ended June 2025.
Common questions

Questions we get asked

Which councils does the RFI Engine cover?

It's grounded in the real RFI practice of 40 New Zealand councils - 726 documented RFI triggers across 42 NZBC clauses and 464 regional overlay requirements - with the deepest, most operational coverage across Canterbury's three BCAs: Christchurch City, Selwyn, and Waimakariri.

How does the pre-lodgement flagging work?

Upload your drawing set and ARRO reviews it the way a council vetter would, surfacing the items likely to draw an RFI before you lodge. Every flag is pinned to the exact region of the sheet that raised it and tied to the NZBC clause it breaches.

What happens when an RFI letter actually arrives?

Drop in the letter and ARRO extracts every ask, classifies it to its Building Code clause, grounds it against the plans and specs you actually submitted, and drafts a council-ready response with a citation on every claim - exported as a lodgement-ready bundle.

Is this just a checker, or does it draft the response too?

Both. ARRO flags likely RFI triggers before you lodge, and for RFIs that do land, it reads the letter, grounds each ask against your submitted drawings, and drafts the reply - not just a findings list.

Now onboarding early teams

Stop guessing what council will ask.

Be first to run your consents through ARRO's RFI engine. Drop your email and we'll reach out as we open up access.

NZBC & council-readyNo spam, everEarly access
RFI Engine | ARRO