CAN I SELL PART OF MY GARDEN AS A BUILDING PLOT?
Selling garden land for residential development
If you have a large garden, side plot or land behind your home, it may be possible to sell part of your garden as a building plot.
You do not necessarily need to build the new house yourself. Garden land with credible development potential can potentially be separated from the existing property and sold to a developer, builder or self-builder.
However, the value of the land will depend heavily on what can realistically be built.
Before marketing part of a garden as a building plot, it is therefore worth understanding the planning potential, access, constraints and likely development capacity of the land.
In some circumstances, establishing planning permission before selling can significantly reduce uncertainty for a purchaser. In others, it may be possible to sell the land subject to planning or use another agreement that allows a purchaser to pursue permission.
CAN I SELL PART OF MY GARDEN SEPARATELY?
Potentially, yes.
Part of a residential garden can be separated from the existing property and transferred to another owner.
But there is an important distinction between selling garden land and selling a building plot.
A purchaser paying for a building plot will normally want confidence that a new home can actually be developed.
Without that certainty, they are taking on planning risk and may price the land accordingly.
Before deciding how to sell, it is therefore useful to establish whether there is a realistic planning opportunity.
DO I NEED PLANNING PERMISSION BEFORE SELLING PART OF MY GARDEN?
Not necessarily.
Land can be sold without planning permission.
However, obtaining planning permission can make the development opportunity much clearer.
Consider two situations.
Garden land without planning permission
A purchaser needs to assess what could be built and take the risk of securing permission themselves.
Garden land with planning permission
The principle and form of development have already been established through the planning process, subject to the terms of the permission.
The second scenario can provide a purchaser with greater certainty.
That can affect both the marketability and potential value of the land.
But obtaining planning permission costs money and carries risk, so it is not automatically the right approach for every landowner.
IS MY GARDEN ACTUALLY A BUILDING PLOT?
A large garden is not automatically a building plot.
Its development potential depends on the particular site and planning context.
Relevant considerations can include:
Planning policy
Location
Existing pattern of development
Plot dimensions
Access
Neighbouring properties
Trees
Ecology
Flood risk and drainage
Parking
Heritage
The amount of garden retained by the existing house
The land may look large enough for a house, but these constraints can substantially change the amount of space that can realistically be developed.
An initial planning and development assessment can help establish whether the land represents a credible opportunity before it is marketed as such.
HOW MUCH IS PART OF MY GARDEN WORTH AS A BUILDING PLOT?
There is no standard price per square metre or acre that can reliably answer this.
A potential building plot is ultimately worth what the market will pay for the development opportunity it provides.
The value can depend on:
What can be built
The size and type of home
Local property values
Construction costs
Access and infrastructure
Site constraints
Planning obligations
Development risk
The level of planning certainty
A small plot capable of accommodating a desirable house in a high-value location could therefore be worth more than a substantially larger piece of land with a difficult planning position.
For an important transaction, formal valuation advice should be obtained from an appropriately qualified land or development valuer.
WILL PLANNING PERMISSION INCREASE THE VALUE OF MY GARDEN?
It can.
Planning permission can establish that the land has an acceptable development use and reduce one of the major risks facing a purchaser.
But the amount of value created depends on the permission.
A well-designed consent for a commercially attractive house may be valuable.
A permission for an expensive or awkward development may create considerably less value than expected.
This is why it is important to think about the development proposition, not simply obtaining planning permission at any cost.
SHOULD I GET PLANNING PERMISSION BEFORE PUTTING THE LAND ON THE MARKET?
This depends on the site and your objectives.
Obtaining planning permission first may make sense where:
There appears to be a strong planning opportunity
The likely increase in value justifies the cost
You are willing to fund the planning process
You are not under pressure to sell immediately
Greater certainty is likely to attract more purchasers
Selling earlier may be appropriate where:
The planning position is particularly uncertain
Significant expenditure would be required
You want to sell quickly
A purchaser is prepared to take the planning risk
A suitable conditional or promotional arrangement can be agreed
There is also a middle ground.
You might first establish the site's development potential through a feasibility assessment or indicative layout before deciding whether to pursue a full planning application.
CAN I SELL MY GARDEN SUBJECT TO PLANNING PERMISSION?
Potentially.
A transaction can sometimes be structured so that the purchase proceeds only if an agreed planning outcome is achieved.
This can allow a developer or purchaser to pursue planning permission without the landowner immediately transferring the land.
Other arrangements can include option agreements and promotion agreements.
These can be useful in the right circumstances, but the commercial and legal terms are important.
Matters such as the planning strategy, purchase price mechanism, timescales, costs and the landowner's control over the process need careful consideration.
Specialist legal and valuation advice should be obtained before entering into this type of agreement.
WHO MIGHT BUY PART OF MY GARDEN?
The likely purchaser depends on the scale and type of development opportunity.
Potential buyers could include:
Local builders
Small developers
Housebuilders
Self-builders
Neighbouring landowners
Land promoters
A plot with permission for a single house may appeal to a different market from a garden capable of accommodating several homes.
Understanding what can realistically be built therefore helps identify not only the potential value but also who the likely buyer might be.
CAN I KEEP MY HOUSE AND SELL THE GARDEN?
Yes, potentially.
This is a common form of garden development.
However, the development needs to work for both the new building plot and the house you retain.
Creating the plot can affect:
The size of your remaining garden
Privacy
Parking
Access
Outlook
Landscaping
The relationship between your house and the new development
There can also be an impact on the value of the existing property.
The right question is therefore not simply how much the new plot might be worth.
It is:
What is the overall financial effect of separating and developing part of the property?
The value created by the building plot should be considered alongside any effect on the retained house.
SHOULD I SELL ONE PLOT OR SEVERAL?
If you have a particularly large garden, it can be worth establishing the site's development capacity before deciding where to draw the new boundary.
Selling one building plot may be straightforward, but it could potentially sterilise land that might otherwise form part of a larger development.
For example, the location of a new house or its access could make it much harder to develop the remaining land later.
Before separating a plot, it can therefore be worth asking:
Could the wider garden accommodate more development?
Even if you only intend to sell one plot now, understanding the long-term potential can help avoid inadvertently reducing the value of the land you retain.
WHAT ABOUT ACCESS AND SERVICES?
These can be fundamental to the value of a garden plot.
A purchaser will need to understand how the proposed development can be accessed and how it could connect to necessary services.
Access may involve:
Creating a new entrance
Using an existing driveway
Sharing an access
Creating rights over retained land
Similar issues can arise with drainage and utilities.
These arrangements can affect both the building plot and the retained property, so they should be considered before the land is separated.
Legal rights, easements and ownership issues should be reviewed by an appropriate solicitor.
DO I NEED TO CHANGE THE LAND REGISTRY TITLE BEFORE SELLING?
Not necessarily before you start exploring the opportunity.
Part of an existing registered property can be transferred as part of a sale without first creating a completely separate property simply to investigate its development potential.
The exact boundary being sold will ultimately need to be clearly defined, and the conveyancing process will deal with the relevant title arrangements, rights and restrictions.
A property solicitor should advise on the appropriate legal structure for the particular transaction.
For planning purposes, the important first step is usually understanding which part of the property should form the development site.
ARE THERE TAX IMPLICATIONS WHEN SELLING PART OF A GARDEN?
There can be.
The tax treatment will depend on the owner's circumstances, the property and the nature of the transaction.
A sale of garden land can therefore have tax implications that should be understood before committing to a transaction.
Planning consultants and architects should not substitute for specialist tax advice.
Where significant value may be involved, appropriate tax and legal advice should form part of the overall strategy.
WHAT SHOULD I DO BEFORE APPROACHING A DEVELOPER OR ESTATE AGENT?
Before marketing the land, try to establish what you are actually selling.
A sensible sequence might be:
1. Review the planning position
Establish whether residential development appears realistic.
2. Identify the potential development area
Consider what land could be separated while retaining an appropriate property and garden.
3. Check access
Understand how the new plot could be reached.
4. Identify significant constraints
Trees, neighbours, flooding, ecology and other matters may influence the opportunity.
5. Test development capacity
Consider what type and number of homes might realistically fit.
6. Decide how much planning certainty to obtain
This could range from feasibility work through to securing planning permission.
7. Consider valuation and disposal advice
Once the development proposition is clearer, specialist valuation or agency advice can help establish how the opportunity should be marketed.
This puts the landowner in a much stronger position than simply asking an agent or developer what they think the garden is worth.
SWAP VIEW
If you are considering selling part of a garden, don't draw the sale boundary too early.
The most obvious parcel to sell is not always the parcel that creates the greatest value.
The position of a boundary, access or first new house can determine what happens to the rest of the property in the future.
We would therefore normally consider the whole site first — even where the intention is only to sell part of it.
By understanding the planning potential, development capacity and likely long-term options before separating the land, it is possible to make a more informed decision about what to retain, what to sell and how much planning work is worth undertaking first.
THINKING ABOUT SELLING PART OF YOUR GARDEN?
If you have a large garden, side plot or land behind your home and are considering selling it for development, SWAP can help establish what the land might realistically accommodate before you decide how to proceed.
We can assess the planning position, access and constraints, test the potential development capacity and advise on an appropriate route towards establishing planning certainty.
Send us the property address, a plan if you have one, and a brief description of the part of the garden you're considering selling.