A Small Site for a Few Homes: How Planning, Plot Sales and Builders Work

The Town and Country Planning (Development Management Procedure) (England) Order 2015, usually shortened to the DMPO, is the set of rules for how councils handle applications. Article 2 makes housing major development where the number of homes is 10 or more, or where the site is 0.5 hectares or more and nobody yet knows how many homes there will be. Half a hectare is about 1.24 acres. Everything under that line is minor development. The government's own working paper on site thresholds, published in May 2025, puts it plainly: minor development is not formally defined but is taken to be anything below this threshold.

Two Definitions That Do Not Quite Match

There is a wrinkle that catches people out. The National Planning Policy Framework, the government's planning policy for England, has its own glossary, and its definition of major development is wider. The Annex B glossary, republished with the August 2026 framework, says that for housing, major development is development where 10 or more homes will be provided, or the site has an area of 0.5 hectares or more. The condition that the number of homes must be unknown is not there.

In practice this means a low-density scheme can sit on both sides of the line at once. Six large houses on a 0.6 hectare paddock are minor development for the procedure, because the number of homes is known and is under ten. Yet the same scheme is major development under the framework's glossary, because of the site area. A local plan may use either form in its own policies, such as its affordable housing threshold, so the plan's exact wording decides which rules apply to a site near the half-hectare mark.

A Third Line, for Who Makes the Decision

A third definition arrived with the new rules on planning committees. The Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026, with a commencement date of 31 October 2026, require a council to arrange for every "minor residential application" to be decided by one of its officers rather than by councillors at a committee meeting. The regulations define that as one to nine homes, with nothing else in the scheme beyond what goes with the homes, on a site smaller than 0.5 hectares. Four houses on 0.3 hectares are therefore an officer's decision, while six houses on 0.6 hectares fall outside the rule and the council's own arrangements decide whether they go to committee. The one carve-out is an application in which the council, or one of its councillors or officers, has an interest: the council's nominated member and nominated officer may agree to send that to committee.

One band higher sits what the August 2026 framework calls medium development, 10 to 49 homes on up to 2.5 hectares, which remains a sub-set of major. Where a modest field sits among these bands is the subject of our separate guide asking whether a field is worth anything to a housebuilder.

Less Paperwork

A design and access statement is a report explaining the design ideas behind a scheme and how people will get into and around it. Article 9 of the DMPO requires one with every application for major development. For smaller schemes it is needed only where part of the site lies in a designated area, which the article defines as a conservation area or a World Heritage Site, and the development provides one or more homes. Councils still ask for the reports their own local validation lists require, such as drainage or ecology, but a small scheme usually carries a shorter set.

Fewer Obligations

The heaviest obligations are written for major schemes. Policy HO5 of the framework's housing chapter asks plans to set a specific affordable housing requirement for major development, with a minimum proportion of Social Rent, and to ensure at least 40% of homes on major developments meet the accessible and adaptable standard in the Building Regulations, known as M4(2). Its only words about smaller schemes are these: in Designated Rural Areas development plans may set affordable housing requirements for residential developments which are not major development.

Nowhere does the 2026 framework lay down a general rule that smaller schemes must not be asked for affordable housing. It reaches much the same place by aiming its requirement at major development and naming Designated Rural Areas as the one place a plan may go further, so for a small scheme elsewhere the local plan's own threshold is what decides. The glossary defines Designated Rural Areas as National Parks, National Landscapes, areas designated as rural under section 157 of the Housing Act 1985, and other parishes or unparished areas with a population of 3,000 or less and no more than two people per hectare. That last limb takes in a good deal of quiet countryside outside the protected landscapes. The government's working paper of May 2025 described its aim as retaining the position that affordable housing contributions are not required on minor development, other than in limited circumstances such as Designated Rural Areas.

Lighter does not mean free of cost. A small scheme still pays the Community Infrastructure Levy where the council charges one, still needs a safe access and drainage, and may still be asked for specific works where the site needs them, such as a footway or a passing place on a lane.

Article 34 of the DMPO sets the clock. For major development the council has 13 weeks, and for anything that is not major, 8 weeks, each beginning with the day after the application is received, or such extended period as may be agreed in writing between the applicant and the council. The time runs from a valid application, which the order treats as received only once it is complete and the fee has been paid, so a scheme that is sent back for missing information has not started its eight weeks.

The written extension is used far more often than people expect. In the quarter from April to June 2026, according to government figures released on 24 September 2026, 87% of minor applications were decided within 8 weeks or within the agreed time, but only 39% within the statutory eight weeks themselves. About 6,000 minor residential applications were granted in that quarter. So most small schemes are decided on a timetable agreed between applicant and council, and an owner applying alone should expect the council to ask for more time.

The government has signalled that it wants this band to move faster. Its May 2025 working paper proposed retaining the shorter statutory timeframe for determining minor development at 8 weeks, requiring all schemes of this size to be decided by officers rather than by the planning committee, and reducing the validation requirements, the list of documents a council needs before it will register an application. The second of those has since been put into law by the 2026 regulations described near the start of this guide, for schemes of one to nine homes on less than half a hectare; the regulations' commencement date is 31 October 2026. The lighter validation list was put forward as a proposal in that paper; what a council asks for when an application arrives is set by its own local validation list, which it publishes on its website.

Small schemes have one more route. Permission in principle can be applied for on minor housing schemes, settling whether homes are acceptable before the technical details are drawn up; how it compares with outline and full permission is set out in our guide to outline or full planning permission.

Four passages in the August 2026 framework point towards small sites. Read together, they give a modest piece of land a recognised place in the plan.

• At least a tenth on sites of a hectare or less. Policy HO6(1)(a) tells plan-makers to find room for no less than 10% of their housing requirement on sites of one hectare or smaller, with another 10% on sites from one to two and a half hectares, unless strong reasons mean those targets cannot be met. One hectare is just under 2.5 acres, so almost every one-to-nine-home site falls in the first group.
• Villages that grow and thrive. Policy HO6(1)(b) asks plans to allocate sites which will support and enhance the vitality of rural communities, especially where this supports local services such as a shop, school or bus route.
• Plots for people who build their own homes. Policy HO5 asks plans to identify plots for self and custom build housing and community-led development where there is identified need.
• Rural exception sites. Policy HO10 supports small sites of affordable homes on land that would not normally be used for housing, to meet identified local needs shown by a survey or other evidence no more than five years old. Unless the plan says otherwise, such a site should adjoin a settlement or be well related to it, and its built development should be no bigger than one hectare or, if larger, 5% of the existing settlement's size. Some homes for sale on the open market may be allowed if, without them, the affordable homes could not be built without grant funding.

One further policy matters to anyone selling a plot with permission. Policy HO13 says it is important that land with permission is developed without unnecessary delay. Its second paragraph, which the policy applies to every housing scheme however small, asks councils to consider a condition requiring work to begin within a shorter time than the usual statutory period, where that would not threaten the scheme's delivery or viability. A buyer will check how long the permission has left to run, so a shorter time limit changes how quickly a sale has to happen.

Allocation in a plan is not the only way in. A small site inside a settlement, or well related to one where homes are needed, can go straight to a planning application under the framework's settlement policies, without waiting for a new plan.

The framework's glossary defines self-build and custom-build housing as housing built by an individual, a group of individuals, or persons working with or for them, to be occupied by that individual. It can be market or affordable housing. Every council keeps a register of people who want a plot, often called the Right to Build register, under the Self-build and Custom Housebuilding Act 2015. The register, and the levy exemption that a self-builder can claim on the house they build, are explained in our guide to whether your garden could be a building plot.

What a Self-Builder Looks For

Self-builders are buying a plot they can start on, so the plot that sells most easily is one where the uncertainty has already been taken away. Paragraph 026 of the government's planning practice guidance on self-build describes a serviced plot as land that either has access to a public highway and connections for electricity, water and waste water, or, in the council's opinion, can be given them within the life of a planning permission. The services must reach the boundary of the plot, or an adequate alternative must be possible, such as a cesspit where there is no mains drainage. The access can include a stretch of private or unadopted road: the plot need not sit right beside the highway, provided there is a secure legal right of access to it.

• Planning permission. A plot with at least outline permission has already settled that a home can be built there, so the buyer is not carrying the planning risk.
• A way in. A drive onto a public road, or a legal right of way to one wide enough for construction traffic and, later, a car and a bin lorry.
• Services at or near the boundary. Water, electricity and a foul drain, or a realistic alternative such as a treatment plant where there is no sewer.
• A clear title. Boundaries on the ground that match the plan, and no covenant on the deeds that stops building.
• A permission with time left on it. A permission that is close to expiring, or carries a shorter time limit under policy HO13, gives a buyer less time to arrange finance and start work.

Selling plots one at a time also means one buyer per plot, each with their own solicitor and lender, and the shared drive, drains and boundaries have to be set out in each transfer so that the plots still work once the owners are strangers.

The decline is well documented. The government's May 2025 working paper records that a third of SME developers have ceased operating over the last two decades, with the largest developers accounting for roughly 90% of volume growth. Citing analysis by the Federation of Master Builders, the same paper reports that the share of planning permissions on sites of one to nine homes fell from 21% in 2010-11 to 9.3% in 2023-24.

The builders themselves say why. The Home Builders Federation's annual survey of SME builders, carried out with Close Brothers Property Finance and Travis Perkins and published in November 2025, asked 225 firms which issues were a major barrier to building more homes.

The same report notes that SMEs are disproportionately reliant on access to smaller parcels of land, and that many local plans are not allocating a sufficient number of viable smaller sites. The Federation of Master Builders' own House Builders Survey of December 2025 found that 33% of its members report a lack of available sites, 31% say much of the land open to them is financially unviable, and 65% agree that the National Planning Policy Framework is driving more opportunities for small sites.

What That Means for an Owner

Read together, the surveys explain how small builders tend to approach land. Planning delay and the cost of getting there are the problems they name most, and development finance is tight, so many prefer land where permission is already in place, or agree to buy only if permission is granted. A builder who has to carry months of planning work, surveys and the risk of refusal on a site of four homes has very little room to absorb it, which is why a small builder's interest in a site often turns on how far the planning has already got.

• Building the homes yourself. You take on the planning, the build contract, the finance, the sales and every overrun. There is also a tax point to settle before you start: building homes in order to sell them can turn a capital gain into trading income, which our guide to whether a land sale could be taxed as income explains.
• Joining with a neighbour. Two small parcels side by side can make one better scheme, with a single access and a sensible layout, and sometimes the neighbour's land holds the visibility a junction needs. How shared schemes are agreed between owners is set out in our guide for when your neighbour owns the next field.
• Putting the land forward through the local plan. With policy HO6 asking for a tenth of the housing requirement on sites of a hectare or less, a council preparing a new plan has a reason to look at small parcels that are offered to it.
• Putting the land forward with a land company. The land company pays for and runs the planning and buys if permission is secured. How that works with us, with nothing taken off the price for the planning, is set out at the end of this guide.

The routes have one first step in common. Each depends on whether the land has a realistic planning case, so most owners find that out before choosing, and then pick the route that suits the size of the site and how much of the risk they want to carry themselves.

From 6 August 2026, the government's list of exempt developments says the rule does not apply where the site area within the red line boundary is 0.2 hectares or below, unless the scheme affects priority habitat. The same change ended the separate self-build exemption for new applications. The wider rules, including how units are bought, are in our biodiversity net gain guide.

The Small Sites Metric

Above 0.2 hectares, a small scheme can often use a simpler calculator, the small sites metric. The Small Sites Metric user guide, last updated in July 2025, says it can be used for residential schemes of 1 to 9 homes on a site of 1 hectare or less, or under 0.5 hectares where the number of homes is unknown, and only where:

• the habitats on the site are all ones the small sites metric includes;
• no priority habitats are present on site, hedgerows and arable field margins aside;
• no statutory protected sites or habitats are present;
• no European protected species, such as great crested newts or bats, are present.

The same guide says the competent person does not need to be an ecologist for the small sites metric, though they must be able to identify the habitats on site. If the site fails any of the tests, the full statutory metric and an ecologist are needed. The small sites metric has no off-site section: where the gain cannot be made on the site, units are bought from an off-site provider, and the completed metric is sent to that provider.

Nutrient Neutrality

In some river catchments a separate rule applies, nutrient neutrality, under which new homes must show they will not add to nutrient pollution of a protected site downstream. How it works is covered in the field guide linked near the start of this page. It weighs on small builders too: a third of the firms in the Home Builders Federation survey called it a major barrier and another third a minor one.

Buyers of plots work backwards. A self-builder or small builder starts from what the finished home would be worth, and takes off what it will cost to get there: the build itself, the drive and services, the levy where the council charges it, any Section 106 items, the biodiversity net gain work, fees and finance, and, for a builder, a profit for the risk. What is left is what the plot can bear. Because that sum depends on the size of house allowed, the cost of reaching the services and the access, two plots in the same village can be worth very different amounts.

That is also why a figure cannot be put on a small site before it has been looked at. The things that move it most, the number and size of homes, the access, the drainage, the habitats and the local plan's thresholds, are specific to each piece of land, and several of them are settled only once the planning work is done. These are the questions about your own land that shape the answer:

• Will the scheme be fewer than ten homes, and is the site under 0.5 hectares, about 1.24 acres?
• Is the land in a National Park, a National Landscape or another Designated Rural Area, such as a small and thinly populated parish, where a plan may ask a small scheme for affordable homes?
• Is any part of the site in a conservation area or a World Heritage Site?
• Is the site 0.2 hectares or below, and if larger, are the habitats ordinary ones such as grazed grass, or might there be priority habitat, a pond or protected species?
• Does the land reach a public road, or have a right of way to one, wide enough for building traffic?
• Are water, electricity and a foul drain at or near the boundary?
• Does the title match the boundaries on the ground, with no covenant against building?
• Does a neighbouring owner hold land that would make a better scheme or a safer access?

We usually look at sites from about 2 acres. A smaller plot can still work where it sits within a village or right on its edge, above all with a good road frontage, so ask us anyway. Our paddocks and small sites page describes the sizes and settings that suit us.

Where land fits, the price is agreed with you at the start and written down as a figure. That figure is set above the land's worth today in its current use. We pay for and run every part of the planning work, at our own cost and risk, and none of it comes off your price. Once permission is granted, we complete the purchase and you are paid the agreed price on completion; without permission, you keep your land and owe nothing. Either way, you carry on using the land until completion. We also make a contribution to what your own solicitor and land agent charge, so it costs you nothing to get it done properly, and nobody from our side will be in touch with the council, your neighbours or anyone else about your land unless you agree.

For a straight answer about your own land, a free desktop review will say plainly what fits: whether there is a realistic planning case, how many homes the land might roughly take, and the main hurdles it would face.