A survey plan records cadastral evidence such as parcels, dimensions, bearings, areas, survey marks and referenced interests. It helps you understand how land was defined, but it does not let an unqualified reader reliably locate every legal boundary on the ground. Use a licensed cadastral surveyor when physical position matters.
If you've ever ordered a survey plan for a New Zealand property and stared at it wondering what all the lines, numbers, and symbols mean — you're not alone. Survey plans are essential property documents, but they can look like a foreign language if you don't know what to look for.
This guide breaks down how to read a survey plan, what each element means, and when you actually need one.
What Is a Survey Plan?
A survey plan (also called a cadastral plan or DP plan) is an official document that shows the precise boundaries, area, and dimensions of a piece of land. It's created by a licensed surveyor and lodged with the official land registry as part of the subdivision or land definition process.
In New Zealand, survey plans are identified by a DP number (Deposited Plan) — for example, DP 123456. This number appears on your Record of Title and is the key reference for ordering the plan.
Why Survey Plans Matter
Survey plans are critical for several reasons:
- Boundary disputes — They define exactly where your property starts and ends
- Subdivisions — They show how land has been divided into new lots
- Easement definitions — They show the precise location and dimensions of rights of way, rights to convey electricity, and other easements
- Building consent applications — Councils require them to verify setbacks and site coverage
- Fencing disputes — They establish legal boundaries for fence placement
- Property purchases — They reveal if structures encroach over boundaries
Ordering a Survey Plan (SP/RP) at the price shown on the product page is one of the smartest things you can do before buying, building, or fencing.
The Anatomy of a Survey Plan
Let's break down the key elements you'll find on most New Zealand survey plans:
1. Title Block
The title block is usually in the bottom-right or top-right corner and contains: - Plan number — e.g., DP 123456 - Survey type — e.g., Subdivision, Easement, Land Covenant - Council/district — e.g., Auckland Council, Wellington City - Surveyor's name and firm — the licensed professional who prepared it - Date of deposit — when the plan was officially lodged - Approval stamp — from the Survey Board of New Zealand2. Lot Numbers and Boundaries
Each parcel of land on the plan is labelled with a lot number (Lot 1, Lot 2, etc.). The boundaries are shown as solid black lines. Key details include:- Boundary lengths — Each boundary segment shows its length in metres
- Bearing angles — Directions shown as degrees/minutes/seconds (e.g., 45°30'15")
- Area — The total area of each lot in hectares (ha) or square metres (m²)
- Street frontage — The length of boundary along a road
3. Easement Areas
Easements are shown as hatched or shaded areas on the plan, often with a dashed outline. Each easement is labelled with: - Easement type — e.g., "Right of Way", "Right to Convey Electricity" - Easement identifier — e.g., "Easement A" or "Easement Area A" - Grantor and grantee — which lots benefit from and are burdened by the easement - Dimensions — width and length of the easement areaThis is one of the most important sections to check — an easement you didn't know about can affect where you build, park, or even walk on your own property.
4. Building Outlines
On some survey plans (particularly newer ones), you'll see building outlines showing the footprint of existing structures. These help identify: - Setbacks from boundaries - Potential encroachments - Site coverage calculations5. Street and Road Details
Roads are shown with their legal name and width. The road boundary is typically a thicker line than internal lot boundaries. If a lot has road frontage, the frontage length will be shown.6. Reference to Other Plans
Survey plans often reference other documents: - Parent title — the title that was subdivided - Head title — the original title from which all lots were created - Amalgamation conditions — requirements that lots must be held together - Consent notices — references to conditions under the Resource Management ActCommon Survey Plan Types in NZ
| Plan Type | Code | What It Shows |
|---|---|---|
| Deposited Plan | DP | Subdivisions, lot layouts, easements |
| Survey Office Plan | SO | Older survey plans, often pre-digital |
| Māori Land Plan | ML | Māori land subdivisions |
| Land Transfer Plan | LT | Plans lodged under the Land Transfer Act |
When you order a Survey Plan at the price shown on the product page, you'll typically receive the DP plan along with the title sheet — the part of the Record of Title that shows the plan diagram.
How to Match a Survey Plan to Your Title
Here's the step-by-step process:
- Find the DP number on your title — It appears in the legal description, e.g., "Lot 123 DP 456789"
- Order the survey plan — Use the DP number to request the plan
- Locate your lot — Find Lot 123 on the plan
- Check boundaries and dimensions — Verify they match what you see on the ground
- Review easements — Check if any hatched areas affect your lot
- Compare with fencing or structures — Look for encroachments
For the most complete picture, order our Pre-Purchase Due Diligence Package at the price shown on the product page, which includes the Record of Title, survey plan, and instruments — everything you need in one bundle.
Red Flags to Watch For on a Survey Plan
When reviewing a survey plan, look out for these common issues:
Encroachments
If a building or fence on a neighbouring property crosses the boundary line shown on the plan, that's an encroachment. This can lead to disputes and may need legal resolution.Unexpected Easements
A right of way easement across your property means others have the legal right to use that strip of land. Check the plan carefully — you may not be able to build or fence in that area.Amalgamation Conditions
Some plans include conditions requiring lots to be held in the same title. This means you can't sell one lot separately without first applying to remove the condition.Restricted Areas
Consent notices referenced on the plan may restrict what you can build, how high, or where on the site. Always read these in full.Discrepancies Between Title and Plan
If the area shown on your title doesn't match the plan, or if boundary dimensions differ from what's on the ground, you need to investigate.When You Definitely Need a Survey Plan
- Before buying a property — Know exactly what you're getting
- Before building or renovating — Confirm setbacks and site coverage
- Before fencing — Avoid boundary disputes with neighbours
- When subdividing — Required by council as part of the consent process
- When resolving a boundary dispute — The official plan is the legal reference
- When an easement is mentioned on your title — See exactly where it runs
How to Order a Survey Plan
You can order a Survey Plan (SP/RP) at the price shown on the product page directly through our service. You'll need the DP number from your title's legal description — or we can look it up for you when you order a Record of Title with Diagram at the price shown on the product page.
Understanding Bearings and Distances
Survey plans use bearings (directions) and distances (lengths) to define boundaries:
- Bearings are measured from North, clockwise: e.g., N45°30'15"E means 45°30'15" east of north
- Distances are shown in metres along each boundary segment
- Areas are calculated from these measurements and shown per lot
You don't need to be a surveyor to read a plan — but understanding that bearings start from North and go clockwise helps you orient the plan to the actual property on the ground.
FAQ
Do I need a survey plan if I already have a Record of Title?
Yes, they serve different purposes. 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. Together, they give you the complete picture. Order both together with our Pre-Purchase Package at the price shown on the product page.What's the difference between a DP plan and a title diagram?
A DP plan (Deposited Plan) is the full survey plan showing all lots, boundaries, and easements. The title diagram is a simplified version that appears on your Record of Title. For boundary questions and easement details, you need the full DP plan — the title diagram alone may not show enough detail.Can a survey plan be wrong?
Survey plans are prepared by licensed professionals and are generally highly accurate. However, errors can occur — especially on older plans. If you suspect an error, you can order a Guaranteed Search at the price shown on the product page for official confirmation, or engage a licensed surveyor to re-survey the boundary.Related guide: new to survey plans? Start with what a survey plan is and when you need one.
Practical process
- Match the plan identifier and parcel description to the current record before interpreting any detail.
- Use the legend, annotations and tables to identify parcel lines, dimensions, bearings, areas, marks and easement references.
- Compare the plan with other survey evidence and engage a licensed cadastral surveyor before locating a boundary or building near it.
Decision guide
| Situation | Next step |
|---|---|
| You only need to understand the parcel layout | Use the correct plan with the current record and follow its labels and references carefully. |
| A fence or building appears close to a boundary | Do not scale the plan or estimate from imagery; obtain a cadastral surveyor's advice. |
| The plan shows an easement or affected area | Read the related instrument because the plan usually does not contain all operative rights and restrictions. |
Common mistakes and risks
- Treating a plan image as a scale drawing suitable for measuring a site boundary.
- Assuming fences, hedges or occupation lines are the legal boundary.
- Reading plan geometry without checking the matching title, parcel and instrument references.
Key takeaways
- First confirm that the plan matches the correct title and parcel.
- Plan symbols and dimensions require context from the legend and supporting records.
- Use a licensed cadastral surveyor when a boundary must be located on the ground.
Sources and related guides
The Cadastral Survey Act and Cadastral Survey Rules set the professional, evidence and accuracy framework for cadastral surveys and survey plans.
Official sources
Continue your research
Legislation and guidance reviewed 2026-09-28. This guide is general information, not legal or surveying advice.