Those jobs involve different documents. This guide explains the main ownership plan types, where a new plan can help and when you need existing title records instead. HM Land Registry guidance here applies to England and Wales; the planning certificate guidance is for England. Scotland and Northern Ireland have different arrangements.

What is an ownership plan?

“Ownership plan” is a general description, not the official name of one document that works for every property project. Someone might mean a title plan, a drawing attached to a transfer or a plan defining premises in a lease.

The important part is its purpose. A map can show a piece of land clearly, but drawing a line around it does not establish who owns it. Equally, using a driveway or maintaining a fence does not, by itself, settle the legal position.

Ask whoever requested the plan what they need it to show. A brief email from your conveyancer or planning adviser is often more useful than trying to choose from a list of map scales yourself.

The main ownership plan types

Land Registry title plan

A title plan normally shows the location and general extent of registered land. It supports the property description in the title register; it is not a detailed survey of the exact legal boundary.

That distinction matters if you are trying to work out whether a narrow strip belongs to you. Enlarging the red line will not answer the question. Nor will ordering the same map at a bigger scale.

Title plans are not updated whenever Ordnance Survey changes its mapping, so a newly downloaded copy may still show older physical features. HM Land Registry explains this in its guide to reading a title plan.

Title register and plan together

If you want to check who the registered owner is, start with the register, not a newly purchased mapping product. Read it alongside the title plan and any relevant deeds it refers to.

The register may contain information about rights, restrictions and other matters affecting the property. A coloured area on the plan needs that written explanation; its colour alone does not tell the whole story.

Use the official property information service. Ordinary online copies are useful for checking information, but GOV.UK says to order official copies where proof of ownership is needed. Your conveyancer can advise which documents are appropriate.

Transfer or conveyance plan

A transfer plan identifies land involved in a transaction. This is particularly useful when selling part of a property rather than the whole registered title. Older conveyances may also contain plans that remain relevant to the property's history.

For example, suppose you are selling the end of your garden to a neighbour. The plan needs to identify that portion clearly, while the legal document explains the transaction. If access is involved, owning the access strip and having a right to use it are different things. Your solicitor should settle the wording.

Colours, labels and references must agree with the deed. There is no universal colour key that makes every conveyancing plan mean the same thing.

Lease plan

A lease plan identifies the premises included in a lease. Depending on the property, it may need to distinguish floors and separately identify a parking space, garage, garden or other included area.

For a flat, a map showing the building footprint cannot explain which rooms are included on the first floor. Buying a larger-scale OS map will not supply missing internal measurements or room layouts.

Read the plan with the lease. Do not assume that a lease includes the roof, outside walls or garden because they appear beside the flat on a drawing. Check with your conveyancer; planning permission is not a substitute for any landlord's consent that may be required.

Boundary agreement or determined boundary plan

A boundary agreement and a determined boundary are not the same process. An agreement can record an agreed boundary position; a determined boundary involves a formal application to record its exact line.

Neither is achieved simply by buying a map and marking where you believe the boundary runs. The documents, evidence and any necessary measurements need proper consideration. Read HM Land Registry's boundary guidance, then seek appropriate legal or surveying advice if the position is uncertain.

Planning ownership certificate and notice plan

A planning ownership certificate is a declaration, not a map or proof of title. In England, the correct certificate and any required notices depend on the ownership circumstances. Relevant leasehold interests and agricultural tenants may also need consideration.

You can apply for permission involving someone else's land if the required procedure is followed. That does not give you ownership or a right to carry out the work there.

A supporting plan may help identify land when serving notices, but do not assume there is a separate “notice plan” that replaces the certificate. Check the national application guidance with your adviser.

Choosing the right plan for a planning application

For planning, a location plan normally shows the site in its wider setting, while a site or block plan gives a closer view. Our location plans are available at 1:1250 and 1:2500; our site plans offer 1:200 and 1:500. Proposed works may still need adding.

In England, the red boundary should include land needed for the development, including necessary access. Blue identifies other nearby or adjoining land owned by the applicant. That is a planning convention, not a colour key for interpreting a lease. Check your council's guidance through our sister website, then follow through to its current checklist.

For a property transaction, UK Planning Maps also supplies conveyancing-compliant plans. Tell us what yours is for and share your conveyancer's requirements. Our bespoke mapping service is a starting point where you need particular coverage or a different scale. This is not an official title-plan copy or a legal boundary determination.

Before ordering, agree:

• What the plan will accompany: a transfer, lease or planning application.
• The land, floors and separate areas that must be included.
• Who will provide any measurements and confirm the legal extent.
• Who will add and check the final annotations.
• The required scale, page size and file format.

HM Land Registry's plan preparation guidance explains the requirements for registration plans. Have your conveyancer approve the completed drawing for the transaction; a suitable map base is not automatically the finished legal plan.

Common mistakes that cause uncertainty

One common mistake is copying the title-plan outline straight onto a planning drawing. The land needed for a development may not match the whole registered property. Work out the application site before drawing its boundary.

Another is treating a visible fence as conclusive ownership evidence. OS mapping shows physical features; it does not decide a dispute about the legal line.

Finally, check versions carefully. If the solicitor's draft refers to land shaded orange, a revised plan shaded green needs resolving before signing. Keep the original documents, label your working drafts and make sure everyone is reviewing the same version.

When to seek advice

Speak to a conveyancer about ownership, rights or lease wording; ask your planning adviser about the application drawings. An appropriately qualified surveyor may be needed for measured detail or boundary evidence.

For practical mapping help, call us on 01856 898 022. In a customer review displayed on our homepage, S P George describes Evelyn adding boundary lines and a road name for a rural planning application. That is useful drawing support, not a finding about legal ownership.

Send us the request you have received and we can help you choose the mapping. This guide is general information; your adviser should confirm the legal requirements for your particular property.