Source
https://www.legislation.govt.nz/regulation/public/2025/0315/latest/096be8ed81ff4bdc.pdf — original source (opens in a new tab; the file is not redistributed)
NES-DMRU — Resource Management (NES for Detached Minor Residential Units) Regulations 2025
This source CORRECTS an earlier conclusion — reg 9 changes the community question
OT_102 and REG_006 recorded the NES-DMRU as “a granny-flat rule, not a village rule” that cannot authorise N community dwellings. That is right as a NATIONAL DEFAULT but wrong as an absolute. Reg 9 expressly permits a district plan to be MORE LENIENT than the one-DMRU-per-site rule. The community pathway is therefore not nationally closed — it is council-dependent.
Summary
SL 2025/315, in force 15 January 2026 (8 pp). The RMA limb of the ≤70 m² small-dwelling reform — the resource-consent counterpart to the Building Act’s Schedule 1A (REG_007), which it is expressly “intended to complement”.
It makes one DMRU per site a permitted activity in Māori purpose, mixed use, residential and rural zones, subject to standards (reg 6), surviving district-plan rules (reg 7) and any regional-plan rules (reg 8). Crucially, reg 9 allows a district plan to be more lenient than either the one-per-site rule or the standards — so the national default is a floor, not a ceiling.
Key claims
- claim: "reg 5(1) (verbatim): 'One DMRU per site is a permitted activity within the following district plan zones: (a) Maori purpose zone: (b) mixed use zone: (c) residential zone: (d) rural zone.' Subject to compliance with reg 6 standards and regs 7-8; subject to reg 9. reg 3: 'DMRU means a minor residential unit that is completely detached from its principal residential unit' - the definition PRESUPPOSES a principal residential unit."
source_location: "regs 3, 5(1) (p.3-4)"
- claim: "reg 9 'District plan rules and standards may be more lenient' (verbatim): '(1) A district plan rule that applies to a DMRU may be more lenient than the rule in regulation 5(1). (2) A district plan rule or standard that applies to a DMRU may be more lenient than a standard referred to in regulation 6.' THE ONE-DMRU-PER-SITE CAP IS A NATIONAL FLOOR, NOT A CEILING - a district plan may permit MORE."
source_location: "reg 9 (p.5-6)"
- claim: "reg 6 permitted-activity standards: floor area <=70 m2; building coverage no more than 50% in a residential zone (comply with the district plan in rural / Maori purpose / mixed use zones); setback no less than 2 m from the principal residential unit; boundary setbacks - residential zone 2 m from front, side and rear; RURAL ZONE 10 m from the front boundary and 5 m from the side and rear boundaries; Maori purpose and mixed use zones per district plan."
source_location: "reg 6(a)-(d) (p.4-5)"
- claim: "reg 7(4) is a genuine LIBERALISATION - councils are BARRED from applying their usual rules (verbatim): 'No other rules or standards in a district plan apply to a DMRU, including, to avoid doubt, rules or standards relating to- (a) amenity values: (b) minimum requirements for- (i) individual outdoor open space, privacy, or sunlight access: (ii) facade glazing or total area of glazing: (iii) parking.'"
source_location: "reg 7(4) (p.5)"
- claim: "BUT reg 7(2)-(3) preserves the district-plan rules that bite the off-grid case. Still applicable: '(a) subdivision of land: (b) matters of national importance under section 6 of the Act: (c) the use of the DMRU other than for residential activities: (d) papakainga: (e) earthworks.' Plus rules that apply to the principal residential unit and 'manage effects relating to health and safety', including natural hazard risk (e.g. minimum floor levels for flooding), reverse sensitivity, and 'site-specific infrastructure requirements (for example, infrastructure requirements associated with DRINKING WATER, WASTEWATER, AND STORMWATER)'. reg 8: 'A DMRU must comply with any rules in a regional plan that are applicable to the DMRU.'"
source_location: "regs 7(2), 7(3), 8 (p.5)"
- claim: "reg 10 confirms the two limbs are independent FROM THE RMA SIDE (verbatim): 'These regulations do not limit or affect any other legislative requirement that may apply to a DMRU. For example, a DMRU in a residential zone that satisfies all of the permitted activity standards in regulation 6 may still require a building consent under the Building Act 2004.' reg 11: if the DMRU does not satisfy these regulations, resource consent must be sought under the relevant provisions of the applicable district plan."
source_location: "regs 10, 11 (p.6)"
- claim: "Commencement: 'These regulations come into force on 15 January 2026' (reg 2) - a FIXED statutory date, unlike the Building Act amendment (REG_007), which commences on a date set by Order in Council. The explanatory note states the regulations 'are intended to complement the amendments made to the Building Act 2004 by the Building and Construction (Small Stand-alone Dwellings) Amendment Act 2025'. Administered by the Ministry for the Environment; notified in the Gazette 18 December 2025."
source_location: "reg 2 (p.3); Explanatory note (p.7)"Neobiome Intelligence relevance
The correction: the community pathway is council-dependent, not nationally closed
The earlier reading — NES-DMRU is a granny-flat rule, therefore a community cannot use it — held that the one-per-site rule (reg 5(1)) was a hard national cap. Reg 9 says it is not. A district plan “may be more lenient than the rule in regulation 5(1)”.
So the honest position is:
| Level | Position |
|---|---|
| National default | One DMRU per site, permitted in 4 zone types. A community of N dwellings gets no national permitted-activity pathway. |
| District plan | May be more lenient (reg 9) — a council can permit more than one per site, or relax the reg 6 standards. |
| Consequence | The community pathway is not closed; it is council-dependent. There is no national answer — which is itself the finding. |
This is the concrete justification for the per-council planning work (RT_279): the task is not merely to map overlays, but to find which district plans are more lenient than the national default.
What councils may NOT impose on a DMRU (reg 7(4))
A real liberalisation, and a genuine planning-cost saving: amenity values, individual outdoor open space, privacy, sunlight access, façade/total glazing, and parking are all expressly excluded. A DMRU cannot be refused or conditioned on those grounds.
What still bites the off-grid case (regs 7(2)–(3), 8)
- Earthworks and subdivision rules survive — the two things a greenfield community build actually does.
- RMA s6 matters of national importance survive.
- “Site-specific infrastructure requirements… associated with drinking water, wastewater, and stormwater” survive (reg 7(3)(b)(iii)) — the recurring off-grid hook, now from the RMA side too.
- Regional plan rules apply in full (reg 8) — so the water-take and discharge regimes are untouched by this instrument.
The two limbs confirm each other from both directions
REG_006 said it from the Building Act side (“can operate independently”); reg 10 says it from the RMA side (“may still require a building consent under the Building Act 2004”). The independence of the building-consent and resource-consent limbs is now established on primary authority in both instruments.
Research targets
Documents to retrieve
- RT_342 — National Planning Standards (approved under RMA s58E, notified 5 April 2019). The NES-DMRU leans on it for the definitions of “Māori purpose zone” and “mixed use zone” (reg 3 — “the meaning given in standard 8”), and the term “minor residential unit” is itself an NPS definition, not one made here. ⚠ The “ancillary… held in common ownership… on the same site” wording quoted in OT_102 is the NPS definition, not the regulation’s — so the NPS is load-bearing and currently unread. It is also the standardising layer across district plans, i.e. the key to generalising the per-council work without reading 70+ plans.
Research gaps
- None new. RT_339 RESOLVED — both named primaries are now held (REG_006 MBIE package + REG_008 the regulations themselves).
Notes
Primary secondary-legislation, read verbatim via pdftotext -layout — data_quality: verified. Retrieved from legislation.govt.nz 2026-07-14.
Instrument identification: the correct citation is SL 2025/315.
Versioning: as at the date accessed (2026-07-14). Commencement 15 January 2026 is fixed in reg 2 — unlike REG_007, whose commencement is by Order in Council.
Connections
Links to
Referenced by
Sources (4): OT_103 · REG_009 · REG_010 · REG_011
Concepts (2): Council Planning Profiles (D_003 five-council … · Regulatory Consenting for Off-Grid Communities…
Decisions (1): D_003: Council profiling — a purposive 5-counc…