Hertfordshire, East of England
Land in North Hertfordshire
Figures for the North Hertfordshire council area (375 km²) from the open data behind our tools: registered land by size, planning constraints, farmland quality, the electricity network, brownfield sites, and land that may not be registered at all.
4,121
registered land outlines of an acre or more, 942 of them 20 acres or more.
Search them in the site finder →56
brownfield register sites, 36 hectares in all, with room for at least 1,154 homes by the council's estimate.
See them on the map →659
plots that may not be registered with HM Land Registry, on our sister site.
Unregistered land in North Hertfordshire →105
outlines that pass the site finder’s solar farm starting filters: 20 acres or more, near a substation, outside the main constraints and the best farmland.
Show them →Housing and the local plan
In the government’s Housing Delivery Test 2025, North Hertfordshire built 75% of the homes it needed over three years: 20% buffer.
The council delivered under 85% of the homes it needed, so it must add a 20% buffer to its five-year housing land supply and publish an action plan.
From MHCLG’s Housing Delivery Test and the Planning Data platform’s local plan records, which some councils haven’t kept up to date. Whether the tilted balance applies to a scheme also depends on the council’s five-year land supply and the site itself: get planning advice.
Planning constraints
Of the 4,121 outlines of an acre or more, 1,759 (43%) are mostly in Green Belt. 249 (6%) are partly in flood zone 3, the highest risk.
From the government’s Planning Data platform. Check any site with Planning check.
Farmland quality
26% of the graded farmland outlines of an acre or more are grade 1 or 2, the best and most versatile land.
- Grade 2875
- Grade 32,461
- Grade 413
- Non-agricultural30
- Urban742
Natural England’s provisional grades at the centre of each outline. A broad-scale map, so a field survey is needed for any one site.
Electricity network
667 outlines of an acre or more are within 1 km of a primary or grid substation.
The best 2 km square for a data centre scores 62 out of 100. Data centre site search →
Nearby council areas
Counts are of HM Land Registry INSPIRE title outlines (one title can have several outlines, and an outline isn’t always one field), counted under the council HM Land Registry files them with. Substations are from OpenStreetMap. None of this says whether land is for sale or could get planning permission. Sources: HM Land Registry; MHCLG Planning Data; Provisional Agricultural Land Classification © Natural England, Open Government Licence; the councils’ brownfield land registers; network operator open data; © OpenStreetMap contributors.