Is My Field Worth Anything to a Housebuilder? What Makes Land Suitable for Homes

A field without planning permission is worth what it earns as farmland or grazing, plus whatever a buyer will pay for the chance of planning. That chance is the whole story. Housebuilders, land promoters and strategic land companies such as ours all begin with the same question: could the council, or a planning inspector on appeal, approve homes here? If the answer is a realistic yes, it becomes interesting, and the more of the points below it meets, the stronger its case.

None of those points is a matter of taste. Each comes from national planning policy, from the design standards that highway authorities apply to new junctions, from the law on land ownership, or from the practical business of fitting roads, drains and houses onto real ground. This guide takes them one at a time, in the order a planner would, and gives the reason behind each.

Because national policy allows only certain kinds of development outside settlements, and the main route for homes on a village-edge field depends on its connection to the village. The National Planning Policy Framework, the government's planning rulebook for England, was rewritten in August 2026. Its policy S5 begins by saying that only certain forms of development should be approved outside settlements. For homes that meet an evidenced unmet need, it requires the site to be physically well related to an existing settlement, and the scale to be one that can be accommodated given the existing or proposed infrastructure.

The opposite case is spelled out too. Policy S5 says isolated homes, meaning homes away from any settlement or group of houses, should be approved only under a separate policy, HO11, which supports them in narrow circumstances such as the essential need of a rural worker. A field in open countryside, half a mile beyond the last house, therefore starts from a refusal, however pleasant the land.

What "Well Related" Means on the Ground

Touching the settlement boundary drawn on the council's map is not the test, and nor is distance alone. Planners look at how the field reads: whether it sits against existing gardens, whether a road or a strong hedge line would give the new edge a natural finish, and whether the homes would look like part of the village or a separate cluster in the fields.

Why Walking Distance Matters

The reason behind the rule is how people would live there. The framework's transport chapter tells councils to give priority first to walking, wheeling and cycling, and then to easy access to good public transport. The government's design manual for residential streets, Manual for Streets, gives the yardstick most planners still use: walkable neighbourhoods typically have a range of facilities within 10 minutes, up to about 800 metres, of where people live. The same paragraph adds that this is not an upper limit, and that walking has the greatest potential to replace car trips of under about 2 kilometres.

A field with a lit footway to the school gate scores far better than one where children would walk along a verge beside fast traffic.

Infrastructure is the other half. A village whose school is full or whose sewage works is at capacity can absorb fewer new homes than a market town with a station, which is why the same field can suit a modest scheme and fail with several times as many homes.

National policy is direct about it. Policy TR6 of the August 2026 framework says development proposals should be refused if they would have an unacceptable impact on highway safety, or a severe adverse impact on the transport network.

An access has two parts: the legal right to build it, and room to build it safely. The right comes from owning every metre of ground between the field and the public road, which is called the adopted highway. The safety comes from visibility: a driver pulling out must see far enough along the road for an oncoming car to stop.

Visibility Splays in Plain Numbers

Highway engineers call that view a visibility splay: a triangle of land at the junction that is kept clear for good. It has two measurements: the X distance, which is the set-back of the waiting driver's eye from the line of the main road, and the Y distance, which is the length of road they need in view to the left and right. Nottinghamshire County Council's highway design guide, updated in June 2026, says that in most built-up situations the X distance is 2.4 metres, that the Y distance equals the stopping sight distance for the road's speed, and that on existing roads the speed used is the measured 85th percentile wet weather speed, the speed that 85 drivers in 100 do not exceed.

That is why the speed of the road, not only its width, so often decides a field. On a 30 mph lane through a village, 43 metres each way can often be found within the verge or by moving a hedge back. Where traffic runs well above the limit, the distances grow quickly, and a bend or the brow of a hill can make them impossible.

The second rule matters just as much. The Nottinghamshire guide states that visibility splays must be either within the public highway or over land in the control of the developer. If the sight line crosses a neighbour's hedge or front garden, the field depends on that neighbour. That is the commonest way a strip of someone else's land comes to decide a site, and what happens next in that case is the subject of our ransom strips guide.

The dividing line in English planning law is ten homes. The Town and Country Planning (Development Management Procedure) (England) Order 2015 defines major development as including housing where the number of dwellinghouses to be provided is 10 or more, or, where nobody yet knows how many homes there will be, a site of 0.5 hectares or more, which is about 1.24 acres. Below that line a scheme is minor development. At or above it, a heavier set of expectations applies.

Very large fields have a problem of their own. A big field beside a small village may be well located, but filling all of it would swamp the place, so the realistic scheme is often part of the field, or a longer route through the local plan.

There is a second, separate meaning of "major" to know about. In National Parks, the Broads and National Landscapes (the new name for Areas of Outstanding Natural Beauty), the framework says proposals for major development should be refused other than in exceptional circumstances, and there whether a scheme counts as major is a matter for the decision-maker, taking into account its nature, scale and setting. A scheme of fewer than ten homes can still be major in a sensitive landscape.

How many homes a particular field could take depends on its shape, access and constraints rather than on a rule of thumb per acre, and our guide to how the price for your land is worked out works through that count step by step.

Flood risk is checked on every housing application. National policy steers new homes to the land at lowest risk first, through what is called the sequential test, and land in the highest risk zones rarely takes new homes. A field that floods along one edge is a different matter: the wet strip can become open space, habitat and drainage, with the homes on the dry ground. The flood zones and both of the flood tests are set out in full in our flood risk guide.

Rainwater and Sewage

Rainwater from roofs and roads has to be held on the site and let away slowly, usually through a pond or shallow grassed channels at the low point, so a field that falls gently towards a ditch or stream drains more easily than one in a hollow. Sewage has to reach a public sewer and a treatment works with room for it. Neither usually stops a site, but a long pipe or a pumping station is a real cost on a small scheme.

Nutrient Neutrality

In some river catchments, where a protected wildlife site downstream is already harmed by nutrients such as phosphorus and nitrogen, new homes have to show that they will not add to the problem. This is called nutrient neutrality. The Planning Advisory Service, the local government body that supports council planners, maps the catchments covered by the nutrient advice of March 2022 and runs a network for the lead officers of 27 catchments. It records that Natural England launched a national Nutrient Mitigation Scheme in 2023, through which developers in some catchments can apply for mitigation credits.

The Planning and Infrastructure Act 2025, which received Royal Assent on 18 December 2025, created Environmental Delivery Plans and a Nature Restoration Fund, with the first plans for nutrient pollution being developed by Natural England. The August 2026 framework allows a scheme affecting a protected habitats site to be approved where such a plan has been made and the developer has committed to pay the nature restoration levy. Nutrient neutrality adds cost and paperwork, but it is a problem with known answers, not a ban.

The farmland grade is the one owners most often misread. Natural England's guide for planners explains that agricultural land is graded from 1 to 5, that best and most versatile land means grades 1, 2 and 3a, and that Natural England must be consulted on proposals likely to lose 20 hectares or more of it that are not in line with the development plan. It also warns that its national predictive maps, drawn at a scale of 1 to 250,000, are not at a scale suitable or accurate for assessment of individual fields or sites. Where no detailed survey exists, the guide expects a soil specialist to bore with a hand auger to 1.2 metres at one point per hectare, backed by small inspection pits. That survey settles whether grade 3 land is subgrade 3a, which counts as best and most versatile, or 3b, which does not, and so how much weight a council gives to its loss.

Wildlife on the Field Itself

Separately from designations, almost every scheme must leave the land measurably better for wildlife than it found it. This is called biodiversity net gain, measured from what the field holds today, so an intensively farmed arable field is usually easier to improve on than species-rich grassland or an old orchard. Protected species, such as bats along a hedgerow or newts in a pond, usually shape the layout and timetable rather than ending a scheme. Our biodiversity net gain guide explains how the gain is measured and what changed in 2026.

• Slope. Gentle falls are normal and help drainage. Steep ground means retaining walls, stepped plots and roads that struggle to meet highway gradients, and a steep field is seen from further away.
• Shape. A compact field lays out efficiently, with homes on both sides of each road. A long, narrow strip may take one row of houses, so more of it goes on tarmac, and a field that narrows at the road end may not fit a junction.
• Overhead lines and pipes. Power lines, gas pipelines and large water mains come with their owners' legal rights and safety distances, so the land beneath becomes open space or roads.
• Public footpaths. A right of way is rarely a barrier. It is usually kept on a green route through the new homes.
• Trees and hedges. Mature trees, especially any under a tree preservation order, and old hedgerows are kept where they can be and set the grain of the layout.
• Earlier uses. Old tips, filled ponds and fuel stores need investigating. They are a clean-up cost, rarely a reason to refuse.

None of these usually rules a field out on its own. What they do is reduce the share of the field that can take homes, which is why an aerial photograph overstates what many fields can hold.

• A registered title. Registered land has a register and a title plan held by HM Land Registry. Older family land is sometimes unregistered, which takes longer but is not a barrier.
• Every owner on board. Every legal owner needs to agree before an agreement can be signed, whether they are family members, executors or trustees.
• Rights, covenants and charges. A covenant against building, a neighbour's right of way, a mortgage or a tenancy each has to be dealt with, and most can be.
• Nobody else's strip. A thin piece of land between the field and the road or sewer, owned by someone else, is a ransom strip. It changes who has to agree before homes can be built.

Why the Boundary Along the Road Matters

Owners are often surprised to learn that the title plan does not show the exact line of their boundary. HM Land Registry's practice guide on boundaries explains that most registered titles show only the general boundaries under section 60 of the Land Registration Act 2002, and that there is no standard tolerance, measurement or ratio for the gap between the mapped line and the legal one. Where a field meets the road across a verge, a ditch or a hedge, the precise line can decide whether you own up to the highway and so whether you control the land a junction needs.

The same guide records a long-standing presumption that helps many farms: where a hedge or bank is separated from the neighbouring land by a man-made ditch, the boundary is presumed to run along the edge of the ditch furthest from the hedge or bank, so the owner of the hedge usually owns the ditch too. The presumption does not apply to natural ditches. Where the line matters, it is settled by the deeds, the highway authority's records of the adopted highway and, if needed, a measured survey.

Policy S5 lets homes be approved outside a settlement where they meet an evidenced unmet need. A result under 75% in the Housing Delivery Test, the government's yearly comparison of homes built with homes needed, is one way that need is shown. A council's inability to show a five-year supply of deliverable housing sites, meaning a list of sites expected to deliver homes within five years, is evidence of unmet need to be weighed, not an automatic finding. The Green Belt sits outside policy S5 altogether; there, grey belt land is judged against a need test of its own. Inside a settlement the bar is lower still: under policy S4, a proposal there should go ahead unless the harm would substantially outweigh the benefits.

That is why the same field can be refused one year and approved some years later with nothing changed on the ground. These are still not automatic approvals: every other point in this guide still has to be met.

Where a council is building enough homes and has an up-to-date plan, the main route is usually the local plan. The council invites landowners to put sites forward in a call for sites, assesses them, and allocates the best for housing. Land inside settlements, grey belt and small sites have routes of their own, and so do rural exception sites. The framework supports these where they provide affordable homes for identified local needs, shown by a housing needs survey or other data no more than five years old, on land that adjoins or is physically well related to a settlement. Unless the local plan says otherwise, the built area of such a site should not exceed one hectare or 5% of the size of the settlement, whichever is greater. How a field gets into a local plan is covered in our call for sites guide.

The pattern is clear. Location, an access that cannot be made safe, land that floods across most of its area and the strongest designations are the hard stops. Almost everything else is a matter of design, cost and time, which is why a field with one weakness is rarely written off at once.

• Does the field share a boundary with houses or gardens, or sit just across a road from them?
• Could you walk from the gate to a shop, a school or a bus stop in about ten minutes, on a pavement or a safe path?
• Does the field front a public road directly, rather than a farm track or someone else's drive?
• Along that frontage, can you see a good distance both ways, and does traffic pass at village speeds rather than open road speeds?
• Do you own right up to the edge of the road, including the verge, the ditch and the hedge?
• Does any part of the field stand under water after heavy rain, and is there a ditch or stream it drains towards?
• Is the ground reasonably level, and is the field a usable shape rather than a long thin strip?
• Does a power line, a pipeline or a public footpath cross it, or an old wood or listed building sit beside it?
• Is the land in one name, or do several family members, executors or trustees need to agree?

A yes to most of the first five is a good sign. A no to any of them is not the end, but it is where a review looks first.

So Is My Field Worth Anything?

The honest answer is that a field's worth for homes depends on these points taken together, and on what a scheme there would have to provide.

A free desktop review of your land looks at each of these points from the title, the maps and the council's own documents, and tells you plainly whether there is a case. It is confidential: we do not contact the council, your neighbours or anyone else about your land without your agreement. If there is a case, we agree a price at the start, set above what the land is worth today in its current use, and we pay for and run all the planning work at our own cost and risk. If permission is not granted, you keep your land and owe nothing.