Quick answer
On a cross-lease title in Ellerslie or Greenlane, swapping the kitchen inside the existing walls is almost never a cross-lease problem. The flats plan registered against your title draws the outline of your building, not the position of your cabinets, so new carcasses, doors, benchtop and appliances in the same footprint leave it untouched. Your lease is the other half of the answer: most cross-lease deeds stop you altering the structure or the exterior without written consent from the other owners. The moment the kitchen pushes a wall out, cuts a new window or vents a rangehood through the cladding, you have left cabinetry behind. That is when you ring your lawyer, not your joiner.
Key points
- The flats plan shows the footprint of your building, so a like-for-like kitchen swap inside the same walls does not make your title defective.
- Your lease is what catches you: most cross-lease deeds require written consent from the other owners before structural or exterior changes.
- Auckland Council says it cannot refuse a building consent because you have breached your cross lease, so a council consent is not permission from your neighbour.
- Push a wall out and the buildings stop matching the title; fixing that needs a surveyor, a subdivision consent and fresh leases signed by every owner and mortgagee.
- In 2026 the Court of Appeal in Liow v Martelli replaced the test that had governed cross-lease consent since the early 1990s with a broader reasonableness inquiry.
The flats plan draws the outline, not the kitchen.
The back flat down a shared drive in Ellerslie is a very particular kind of Auckland house. Brick and tile, two or three units on a section that was never properly subdivided, a strip of concrete running past the front flat's lounge window to get to it. The kitchen is a run of laminate against one wall, the rangehood recirculates through a filter nobody has cleaned this decade, and the owner has decided this is the year. The question they ring us with is the wrong one: do I need consent?
Wrong question. The right one is which consent, and from whom. Two separate parties can say no here, and they are not connected. One is Auckland Council, which cares about the Building Code. The other is whoever else sits on your title, and they care about your lease. Getting one is not getting the other. We supply and install kitchens; we are not your lawyer, and much of this is about knowing when to ring one.
What a flats plan actually draws
A cross lease gives you an undivided share of the freehold plus a long lease, often 999 years, over one flat. Registered against that title is a flats plan. LINZ's survey guidance is blunt about its job: the plan "only purports to depict the outer parameters of the leased area to enable identification and not all facets of its three-dimensional shape". It does not even bother with overhanging eaves and porches. A drawing that shrugs at your eaves is not tracking where you put the fridge.
This is not exotic. Auckland Council's own research puts around 100,000 cross lease titles in the region across just under 40,000 schemes. Ellerslie and Greenlane are thick with them: the tenure was invented in the late 1950s and 1960s to get a second dwelling onto a section without triggering the subdivision rules of the day, and the isthmus was where the sections were. One suburb over, the same tenure sits behind the hedges in Remuera and Epsom, and behaves identically.
Your lease is the document that bites
The flats plan is a drawing. The lease is a contract, and the contract has teeth. Cross-lease deeds typically say the lessee will not make structural alterations to the flat, or erect any structure on the land, without the prior written consent of the lessors, meaning everyone else on the title. Auckland Council hedges the point in a way that tells you everything: whether you need approval depends on "the specific wording in each lease". These documents were never standardised. Read yours.
Most such covenants add that consent "shall not be unreasonably withheld", and that phrase was long read narrowly. The test from Smallfield v Brown, which stood since the early 1990s, let a neighbour refuse unless the benefit to you was substantial and the detriment to them trifling. In 2026 the Court of Appeal threw it out in Liow v Martelli, replacing it with a broader question: whether a reasonable lessor, having regard to the interests of all the lessees, could withhold consent. Privacy, amenity, the other flats' value and development potential all go into that. If your neighbour refuses on principle rather than real harm, talk to a property lawyer. It is not a licence to start work.
| The move | Flats plan (your title) | Your lease (co-owners) | Building consent? |
|---|---|---|---|
| New cabinets, doors, benchtop, appliances; same walls | Unaffected | Usually silent | Usually not |
| Move the sink along the same wall | Unaffected | Usually silent | Ask council; plumbing by an authorised person to stay exempt |
| Take out an internal non-load-bearing wall | Unaffected | May read as structural | Often exempt, but not if it is bracing, a firewall or masonry |
| Take out a load-bearing wall to open the kitchen up | Unaffected | Very likely caught | Yes |
| Cut a new window over the sink | Unaffected | Very likely caught; changes the exterior | Ask council; a new opening is not a replacement |
| Duct the rangehood out through the cladding | Unaffected | Likely caught; changes the exterior | Ask council |
| Bump the wall out 900mm for a scullery | Now wrong; title goes defective | Caught, and needs new leases | Yes |
Inside the footprint you are freer than you think
Here is the part owners rarely believe. Almost everything that makes an old flat kitchen feel new happens inside the outline, where neither the flats plan nor, usually, the lease has anything to say. Rip out the lot and re-plan the run. Put drawer banks where cupboards were, add a peninsula, run tall cabinetry to the ceiling, move the fridge bay. What a layout can do inside four existing walls is the most underrated lever in a cross-lease unit, because it costs you no consent and no conversation with the neighbour.
Benchtops are the same story. One correction, though, because the internet is full of the opposite: engineered stone is not banned in New Zealand. Australia banned it in July 2024 and plenty of content has been copied across the Tasman since. New Zealand did not follow. MBIE consulted on options, WorkSafe publishes guidance, and the general duties under the Health and Safety at Work Act 2015 apply to whoever cuts and polishes it. That makes it a fabrication and dust-control question, one for your supplier's workshop rather than your title. The position could change; it has not. The honest comparison against laminate and solid surface beats the scare stories.
The three moves that turn a kitchen into a title job
The window
A new window over the sink is the most common request on these flats, because the original kitchens were built facing a wall. The flats plan does not care; a window changes no outline. Your lease almost certainly does. You are altering the exterior of a building the other lessees part-own, and settled.govt.nz notes that on a cross lease even painting the exterior can need agreement. On the consent side, be careful what you read: MBIE's exemption guidance is written around windows and exterior doorways in existing dwellings, which is replacement work. A brand-new opening in a brick-and-tile wall brings a lintel and a fresh weathertightness detail with it. Treat it as consentable until the council says otherwise.
The bump-out
This one changes the nature of the job. Nine hundred millimetres for a scullery, and the building is a different shape from the one drawn on the title. LINZ is explicit that where the footprint of a cross-leased building changes, the title may need updating, and that "the building consent authorising the construction of the additions or new building does not automatically update the cross lease title, so a separate subdivision consent needs to be obtained". Auckland Council treats amending a cross lease by alterations or additions as subdivision work that may require resource consent. Until that is done, the physical reality and the legal title disagree. That is the textbook defective title.
The duct
The quiet one. A rangehood that actually works has to put its air outside, and outside means through the cladding or the roof. That penetration changes the exterior, which is the same lease territory as the window. On a cross-lease block the wall you want to vent through usually faces the shared drive or the neighbour's washing line. The cowl is small. The conversation is not, if you have it after the hole exists.
The rangehood problem, which is now a Healthy Homes problem
If the flat is rented, and plenty of these are, this stops being a preference. The Healthy Homes ventilation standard requires kitchens to have an extractor fan venting to the outside, and it must not discharge back into the room or into a roof space. For fans or rangehoods installed after 1 July 2019 in a room with a cooktop, the requirement is a minimum diameter including ducting of 150mm, or an exhaust capacity of at least 50 litres per second. A recirculating unit with a charcoal filter does not meet it, whatever the box says.
So the standard pushes landlords towards the exact move the lease may catch. Tenancy law says duct it out; your lease says ask the other owners first. Both are true at once, and the order matters: ask, then duct. If a compliant ducted extractor already exists in a workable position, replacing it like for like sidesteps the whole thing. Ducted versus recirculating is worth understanding properly, and the wider Healthy Homes picture for a rental kitchen will shape the spec more than the door colour will.
| Title type | Who else says yes to a kitchen swap | What they are protecting | Where it usually bites |
|---|---|---|---|
| Freehold / fee simple | Nobody | Not applicable | Only the council, and usually not for a like-for-like swap |
| Cross lease | The other lessees, all of them, in writing | A building they part-own, and the flats plan outline | Exterior changes, structural work, anything that moves the footprint |
| Unit title | The body corporate | Common property and the unit plan boundaries | Penetrations, services through common property, access and scaffolding |
Hold onto that distinction, because owners here use the words interchangeably and they are not. A cross-lease neighbour is a private counterparty with a contract against you. A body corporate is an entity with rules, a committee and a process, and going through a body corporate is a different exercise entirely on different timelines.
Most cross-lease kitchens I measure in Ellerslie are a straight swap and nobody needs a lawyer. It's the one where the client says 'while you're here, can we push that wall out for the fridge' — that's where it stops being a kitchen and starts being a title problem.
The council's yes is not your neighbour's yes.
What goes wrong
Almost none of the failure modes here are about joinery. They are boringly consistent.
- The consent that meant nothing. The owner gets a building consent, takes it as vindication, starts work, and the neighbour lawyers up. The council cannot help; it never had a view on the lease.
- The signatures nobody counted. New leases need every owner to sign, and the banks consent where there are mortgages. Worse if the other flat sits in a trust with a retired trustee, an estate mid-administration, or someone who moved to Brisbane.
- The scope creep at measure. The job is booked as a swap, then at the site measure someone says the wall would be better 600mm that way. That sentence changes the legal category of the project, and it gets said with the tape still out.
- The sale, two years later. This is where most defective titles surface. A buyer's lawyer pulls the title, the buildings do not match the flats plan, and the offer dies or gets chipped for the cost of fixing what you did.
- The load-bearing surprise. Opening the kitchen to the lounge sounds cosmetic. If that wall carries load or bracing it needs consent and engineering, and it likely reads as a structural alteration under your lease even though the footprint never moves.
What to ask before you sign anything
- Pull your record of title and the lease itself, not just the flats plan, and read the alterations covenant word for word.
- Compare the flats plan against the building as it stands. If a previous owner added a deck or carport, your title may already be defective and you have inherited that.
- Mark up your scope in two colours: what sits inside the existing outline, and what touches the exterior, the structure or the footprint. The second list is your lawyer's list.
- Ask your designer to solve the brief inside the outline first, and price the bump-out only as a genuine alternative, with survey and legal costs shown next to it.
- Confirm with Auckland Council whether your work is exempt rather than relying on a blog, this one included. Exemptions turn on detail: whether the wall is load-bearing, whether a specified system is affected, who does the plumbing.
Frequently asked questions
Do I need my cross-lease neighbour's consent to replace my kitchen?
For a straight replacement inside the existing walls, usually not. Cross-lease covenants generally bite on structural alterations and changes to the exterior, and swapping cabinets, a benchtop and appliances is neither. The wording differs from lease to lease, so read yours before you assume, and if any part of the job touches a wall, the cladding or the roof, get written consent first.
Does an Auckland Council building consent mean my neighbour has to accept the work?
No, and this is the most expensive misunderstanding in cross-lease renovation. Auckland Council states that it cannot refuse a building consent because an applicant has not complied with their cross lease, and that only one owner needs to sign the application. A dispute with your co-owners over the lease is a private civil matter the council has no role in.
Will a new kitchen make my cross-lease title defective?
Not if it stays inside the existing footprint. A title goes defective when the buildings on the ground no longer match the flats plan registered against the title, and that plan describes the outline of the building, not its contents. Extend a wall or add a bump-out and you have a mismatch; fit out the inside however you like and the plan stays accurate.
My neighbour won't consent to a small extension for the kitchen. Can they simply refuse?
It depends on your lease and, since 2026, on a different test than the one lawyers applied for the previous thirty-odd years. Most covenants say consent must not be unreasonably withheld, and in Liow v Martelli the Court of Appeal replaced the old narrow test with a broader question about what a reasonable lessor could decide in the circumstances. That gives more room to challenge a refusal with no real harm behind it, but it is a legal argument, not a green light.
Should I convert to freehold before renovating the kitchen?
If the kitchen is the only thing you are doing, converting first is usually the long way round, because a like-for-like kitchen does not engage the cross lease at all. Conversion earns its keep when you are planning real change to the building, when the title is already defective from someone else's deck, or when you are heading for a sale. It needs every owner to agree, so treat it as its own project with its own budget.
Where to start, and what to send us
Work out your scope, split it into what sits inside the outline and what does not, and send those two lists to two different people. The inside list comes to us. The outside list goes to a property lawyer before anything is ordered, because the cost of asking first is an hour of their time and the cost of asking afterwards is the job.
Send us the address, whether it is owner-occupied or tenanted, a photo of the existing kitchen, rough run lengths in millimetres and anything you have on the extractor. If you have your flats plan, send that too; it tells us at a glance whether your brief fits inside the outline. A rough scope is enough to price from and drawings will sharpen it. We quote back inside 24 hours, trade-priced with no showroom behind it, plus GST. We manufacture in our own workshop in East Tamaki, turn out ten-plus kitchens a week, and a single kitchen installs in five to seven days. Supply and install sit under one contract and one invoice, so there is one company to hold to it. What we will not do is tell you your neighbour has agreed. Only your neighbour can do that, and only in writing.