Property boundaries define exactly where your land ends and your neighbour's begins. In New Zealand, getting this wrong leads to costly disputes, refused consents, and complications when you try to sell. This guide covers the whole picture: how to find your boundary from the title and the survey plan, how to read the lines and numbers on the plan, who owns the fence, what to do about an encroachment, and when you need a licensed cadastral surveyor.
Which document should you order?
- Record of Title with Diagram ($42.90): the legal description, ownership, registered interests and the title diagram showing your parcel's shape.
- Cadastral Survey Plan ($49.90): the full technical survey — precise boundary dimensions, bearings, easement positions and every lot in the plan.
- Instruments Document ($39.90): the full terms of any boundary-related easement or covenant referenced on the title.
Order a Record of Title or order a Cadastral Survey Plan. If you only have the address, start with a property title search by address on our home page.
What Are Property Boundaries?
A property boundary is the legally defined line separating one parcel of land from another. Boundaries are established by survey plans lodged with the official land registry and referenced on your Record of Title (previously called a Certificate of Title). They determine your legal right to build, landscape and fence — and where you cannot.
Boundaries are measured and recorded by licensed cadastral surveyors, using coordinate data and physical survey marks. They are not determined by fences, hedges or long-standing assumptions.
Why It Matters
- Building and consents: councils require setback distances from boundaries. Build too close and the consent can be refused — or you face enforcement action after construction.
- Fencing: the Fencing Act 1978 allocates cost based on the legal boundary. Fence on the wrong line and you may be obliged to move it.
- Encroachments: a garage, shed or retaining wall crossing the line triggers disputes with neighbours and problems at sale.
- Subdivision and development: any subdivision requires a new survey, and the existing boundary is the starting point for feasibility.
The Five Ways to Find Your Boundary
1. Check Your Record of Title
Start with a Record of Title with Diagram ($42.90). It shows your legal land description including the parcel identifier — lot and deposited plan number, for example "Lot 123 DP 456789" — plus a spatial diagram of your parcel's shape and dimensions. The plan number links directly to the registered survey that defined your lot.
2. Get the Cadastral Survey Plan
The deposited plan number (DP 12345, SO 56789) references the survey that created your lot. A Survey Plan ($49.90) gives you the full technical drawing: precise measurements, bearings, boundary dimensions and the relationship to neighbouring parcels. This is the document surveyors and councils use, and if there is ever a dispute about where a boundary sits, the deposited plan is the definitive reference.
3. Use an Online Mapping Tool (for orientation only)
New Zealand's official land information portal has a free public map viewer. Search by address and see approximate parcel boundaries over aerial imagery. Useful for a rough check, with three caveats: the boundary layer can be visibly misaligned with the photo because of image distortion; it is not legally binding, only the registered survey plan is; and accuracy drops on large rural lots and older surveys.
Online cadastral maps are generally accurate to within about 1–5 metres in urban areas, with greater variance in rural or historic surveys. If the line looks a metre or two off, that usually means nothing is wrong — the dataset is built for national coverage, not for measuring your corners. Never rely on it for construction, fencing or legal matters.
4. Find the Physical Boundary Pegs
When the survey was done, the surveyor placed boundary pegs — iron pins or concrete markers — at the corners of the property. They are usually buried just below ground level or flush with the surface, sometimes capped with a plastic or metal marker stamped with a survey reference. Over time pegs get disturbed, landscaped over, or simply become hard to find. A licensed cadastral surveyor can re-establish them from the survey records.
5. Commission a Boundary Survey
If you need certainty — for a build, a fence, or before a dispute escalates — engage a licensed cadastral surveyor. They research the historical survey records, locate or re-establish the pegs, mark the boundary physically on the ground, and provide a written report. This is the only method that produces a legally binding determination of where the boundary sits on the ground. Cost typically ranges from about $1,500 to $4,000 or more, depending on site complexity and whether it is urban or rural.
How to Read a Survey Plan
A survey plan (also called a cadastral plan or DP plan) can look like a foreign language. Once you know the parts, you can trace your boundary line by line.
The Title Block
Usually bottom-right or top-right. It carries the plan number, the survey type (subdivision, easement, land covenant), the council or district, the surveyor's name and firm, the date of deposit, and the approval stamp.
Lot Numbers and Boundaries
Each parcel is labelled Lot 1, Lot 2 and so on, with boundaries drawn as solid black lines. Along each boundary segment you get:
- Distances in metres — for example 20.15, the horizontal length of that boundary.
- Bearings as compass directions in degrees, minutes and seconds — for example 123°45'30". Bearings are measured from north, clockwise, against a fixed survey reference, not a phone compass.
- Area for each lot, in square metres or hectares.
- Street frontage — the length of boundary along a road. Road boundaries are drawn with a thicker line than internal lot boundaries.
To check a boundary on the ground, work from a known corner mark, then follow the stated bearing and distance to the next corner. Doing that accurately in the field is what a licensed cadastral surveyor is trained for, so treat your own reading as a guide, not a final measurement.
Easement Areas
Easements appear as hatched or shaded areas, often with a dashed outline, labelled with the easement type ("Right of Way", "Right to Convey Electricity"), an identifier ("Easement A"), which lots benefit and which are burdened, and the dimensions of the area. This is one of the most important parts of the plan — an easement you didn't know about can decide where you build, park, plant or fence. Our guide to easements on NZ property titles covers what each one permits.
Building Outlines, and What the Plan Does Not Show
Some newer plans show building footprints, which help with setbacks, potential encroachments and site coverage. But a deposited survey plan is fundamentally about legal land boundaries: as a rule it does not show fences, gardens or other improvements. Don't expect to find your fence on it.
References to Other Plans and Conditions
Plans frequently reference the parent title that was subdivided, the head title all lots came from, amalgamation conditions requiring lots to be held together, and consent notices recording conditions under the Resource Management Act.
Survey Plan Types You'll Meet
| Plan type | Code | What it covers |
|---|---|---|
| Deposited Plan | DP | The most common type — subdivisions, lot layouts, easements, most suburban and urban sections |
| Survey Office Plan | SO | Older plans, often pre-digital; also road, heritage and Crown land purposes. Still legally valid |
| Land Transfer Plan | LT | Plans lodged in earlier periods of land registration under the Land Transfer Act |
| Subdivision Plan | SP | Unit titles and body corporate developments |
| Flats Plan | FP | Cross-lease properties — defines the footprint of each building |
| Māori Land Plan | ML | Māori land subdivisions |
Knowing your plan type matters because it changes what a "boundary" even means. A cross-lease property's boundaries come from a flats plan governing each flat's exclusive use area — not a simple line on the ground. If you are buying a cross-lease and plan to alter or extend the dwelling, the flats plan is essential.
Title Diagram vs Full Survey Plan
The Record of Title includes a basic title diagram showing the property's general shape and location, which is enough for most purposes. The full Cadastral Survey Plan goes further.
| Feature | Title diagram | Cadastral survey plan |
|---|---|---|
| Shows property shape | Yes | Yes |
| Precise boundary measurements | No | Yes |
| Easement locations | Limited | Full detail |
| Shows all lots in the subdivision | No | Yes |
| Suitable as a surveyor's reference | No | Yes |
| Cost | Included with the Record of Title ($42.90) | $49.90 |
How to Get a Copy of a Survey Plan
Survey plans are public documents.
- Find the plan number in the legal description on your Record of Title — the DP, SO or LT number.
- Order the plan with that number. If you don't know it, start with a Record of Title ($42.90), which contains the legal description you need.
- Delivery is by email, usually within minutes.
Older properties may reference historical plans predating the current registration system; these can generally still be retrieved. For deep historical title research, a Historical Title ($42.90) is the better tool.
Red Flags to Look For
- Encroachments. A building or fence crossing the boundary line shown on the plan.
- Unexpected easements. A right of way across your land means others can legally use that strip, and you may not be able to build or fence there.
- Amalgamation conditions. Some plans require lots to be held in the same title — you cannot sell one separately without applying to remove the condition.
- Consent notices. These can restrict what you build, how high, and where on the site. Read them in full via the Instruments document ($39.90).
- Road widening designations. Your title may show a strip designated for future road widening, shrinking your usable area.
- Discrepancies between title and plan. If the area on the title doesn't match the plan, or boundary dimensions differ from what's on the ground, investigate. A Guaranteed Search ($45.90) gives the official confirmed position.
Who Owns the Fence on the Boundary?
This is governed by the Fencing Act 1978. As a general rule:
- A fence on the boundary line is treated as shared, and adjoining owners usually split the cost of an adequate fence equally.
- A fence entirely on your own land is generally your own structure.
- Costs can differ under a fencing covenant or written agreement — common in newer subdivisions — or where one owner damaged the fence.
Before starting fencing work you want a neighbour to share, there is a formal fencing notice process to follow. Note that fence ownership is a separate question from where the surveyed boundary actually sits — only the survey and title records answer the second one. Our guide to fencing and boundary agreements on NZ property titles goes into the notice process and cost-sharing in detail.
Encroachments: When a Structure Crosses the Line
An encroachment is a structure sitting over the legal boundary onto neighbouring land. It usually happens because an old fence was never on the true line.
- An encroachment is generally treated as a form of trespass, and the owner of the encroaching structure can be responsible even if a previous owner built it.
- They surface most often when a property is sold, subdivided or newly surveyed.
- Outcomes range from removing the structure, to granting an encroachment easement or licence that formalises the situation, to transferring the affected strip of land.
If you suspect an encroachment, establish where the boundary genuinely runs first. A licensed cadastral surveyor can re-establish the line and replace lost pegs, giving you an objective basis for the conversation instead of an argument about fences. Where a neighbour has been using part of your land for a very long time, an adverse possession claim can also come into play.
Resolving a Boundary Disagreement
- Get the facts. Order your Record of Title and survey plan, and have a surveyor establish the line if it is genuinely unclear. Consider ordering your neighbour's title too — their easements and covenants may explain why they believe what they believe.
- Talk it through, backed by the survey evidence rather than by what either of you assumed or was told by a previous owner. Put any agreement in writing.
- Try mediation, where an independent person helps you reach agreement.
- Use a formal process if you must — the Disputes Tribunal or the District Court, depending on the nature and value of the disagreement.
For the wider set of neighbour conflicts — shared driveways, easement scope, overhanging trees, tribunal limits and when to bring in a lawyer — see our guide on handling a property title dispute with a neighbour.
The Mistakes That Cost Money
- Assuming the fence is the boundary. Old fences were often installed off the line, or have shifted.
- Trusting a visual assessment. A section can look symmetrical and still have irregular boundaries from old road widenings, easements or survey adjustments.
- Skipping the survey plan before building. Neither the council nor your neighbour will accept "I thought the boundary was there" as a defence.
- Relying on an online map for a consequential decision. It is indicative, not a measurement.
When You Definitely Need the Survey Plan
- Before buying — so you know exactly what you are getting
- Before building or renovating — to confirm setbacks and site coverage
- Before fencing — to avoid a dispute you'll pay for twice
- When subdividing — the council requires it as part of the consent process
- When resolving a boundary dispute — it is the legal reference
- When an easement is mentioned on your title — to see exactly where it runs
For pre-purchase due diligence, the Pre-Purchase Package ($189.90) bundles the Record of Title, the survey plan and the key instruments in one order.
Frequently Asked Questions
Can I find my property boundary for free in New Zealand?
You can get an approximate visual indication from New Zealand's public mapping tools, but those maps are not legally binding. For an authoritative boundary you need the registered survey plan, or a survey carried out on the ground by a licensed cadastral surveyor.
How accurate are the parcel boundary maps shown online?
Generally within about 1–5 metres for urban properties, with greater variance for rural or older surveys. The line can look offset because the boundary layer and the aerial image don't always align, and the data is built for national coverage. Use it as a guide, never for construction, fencing or legal matters.
What if my fence is not on the boundary?
A fence off the line does not automatically create a legal right for either party, though long-standing encroachments can become complicated. Start by obtaining the survey plan to establish the legal boundary, then discuss it with your neighbour and take legal advice if there is a genuine dispute.
Can I move my fence to where I think the real boundary is?
Only once you know where the boundary is. Confirm the line from the registered survey plan, and if there is any doubt have a surveyor re-peg the corners before moving anything.
Do I need a survey plan if I already have a Record of Title?
They do different jobs. The Record of Title tells you who owns the land and what interests are registered. The survey plan shows the physical boundaries, dimensions and layout. For boundary or easement questions you want both.
What's the difference between a DP plan and a title diagram?
The DP plan is the full survey plan showing all lots, boundaries and easements. The title diagram is a simplified version printed on the Record of Title. For boundary and easement detail, the title diagram alone often isn't enough.
What's the difference between a survey plan and a LIM report?
A LIM is issued by the local council and covers what the council knows — consents, rates, known hazards. A survey plan is a land registry document defining legal boundaries. They answer different questions, and buyers often order both.
Do I need a new survey plan if the existing one is 20 years old?
Usually not. A survey plan defines the legal boundaries as deposited, and boundaries don't change because time passes — a 1985 DP is still valid today unless a subdivision, boundary adjustment or easement has been registered since. A new survey is only needed when you are changing boundaries or creating new titles.
Can a survey plan be wrong?
Survey plans are prepared by licensed professionals and are generally highly accurate, but errors do occur, especially on older plans. If you suspect one, a Guaranteed Search gives official confirmation of the registered position, and a licensed surveyor can re-survey the boundary on the ground.
Can I use a survey plan to mark out my boundary myself?
You can use it to understand where the boundary should be, but physically marking or re-pegging boundaries must be done by a licensed cadastral surveyor. Boundary marks have legal significance and placing them incorrectly creates real problems.
What is an encroachment and what can I do about one?
It is a structure crossing the legal boundary onto neighbouring land. Establish the true boundary with a survey first. Outcomes range from removal, to an encroachment easement or licence, to a transfer of the affected land.
