How Much is My Land Worth in Northamptonshire?

We confirm whether the land lies in North or West Northamptonshire and identify the former district or borough policy area. The current plan can include a joint core strategy, a Part 2 plan, neighbourhood-plan policies, supplementary guidance and an emerging unitary Local Plan. Postal addresses, estate-agent descriptions and proximity to a town do not reliably establish the planning authority or policy designation.

We then check the adopted policies map for settlement boundaries, allocations, employment land, Green Wedges, Local Green Space, open space, heritage, landscape, flood-risk and other constraints. The guide to planning policy and development land explains why the exact designation—not a generic label—should inform the valuation.

We distinguish an adopted allocation from an emerging site option, HELAA entry, Call for Sites submission, brownfield-register record, outline permission, reserved-matters approval and land that has not entered the evidence base. Each carries a different degree of planning certainty, technical evidence and delivery risk.

North Northamptonshire’s 2022 sites were assessed against 47 constraints and given HELAA or RAG ratings, while the 2026 Call for Sites invited new proposals. The Council cautions that yields and trajectories may change and that HELAA inclusion does not decide allocation. We also compare the site with competing alternatives using the principles in the guide to how councils compare development sites.

The two unitary areas do not have the same published housing-supply position. West Northamptonshire’s July 2026 assessment records a 4.3-year supply as at 1 April 2026. North Northamptonshire’s published page retains an October 2025 calculation of 5.24 years but also records that a subsequent appeal concluded there was around 4.6 years and that the Council was recalculating its position under an interim housing statement.

A shortfall can change the national policy balance and increase the relevance of suitable, deliverable housing land, but it is not a substitute for lawful access, an appropriate settlement relationship, infrastructure capacity or compliance with protective policies. We verify the latest authority evidence and relevant appeal decisions at the date of assessment rather than relying on a countywide assumption.

Northamptonshire contains large garden communities and sustainable urban extensions with long delivery programmes. Their roads, schools, centres, parks, drainage, utilities and affordable housing are often controlled through masterplans, conditions and Section 106 agreements. Adjoining land may benefit from that investment, but it may also depend on infrastructure owned by others or face a substantial competing supply of serviced development parcels.

We establish whether a site can connect independently, must contribute to shared infrastructure or requires cooperation between several landowners. Equalisation, collaboration, ransom positions and phasing can have as much influence on value as the headline allocation. See the guides to land equalisation and landowner collaboration agreements.

The M1, A14, A43, A45, A5, A6, A605 and nearby A1 create strong residential, manufacturing and logistics connections. The Midland Main Line serves Northamptonshire’s eastern towns, while Northampton sits on the West Coast Main Line. Those links can support demand, but strategic-road proximity does not provide a direct access right or prove that a junction can accommodate the development.

We review title, adopted highway, visibility, gradients, pedestrian and cycle routes, public transport, junction modelling, abnormal structures and third-party verges. A required roundabout, bridge, relief road or rail interface can remove developable land and materially change the residual value. The highways guide explains the principal checks.

The River Nene and its tributaries influence Northampton, Wellingborough, Rushden, Thrapston and many rural locations. We check river and surface-water flood zones, climate-change allowances, ordinary watercourses, culverts, groundwater, safe access, sequential-test requirements and the land needed for sustainable drainage. Flood-free land can still be affected by access routes or off-site flows.

We also investigate potable water, wastewater treatment, electricity, substations, pipelines and a lawful drainage outfall. A strategic allocation does not guarantee that the next parcel can connect without reinforcement or phasing restrictions. The guides to flood risk and drainage and utilities and infrastructure explain how those costs affect value.

The Upper Nene Valley Gravel Pits Special Protection Area and Ramsar site covers 1,358 hectares across North and West Northamptonshire. The 2026 Technical Guidance explains that Golden Plover and Lapwing can use functionally linked land up to 10 kilometres from the SPA, while net new homes within the relevant recreational zone can require strategic access-management mitigation and larger schemes may require Suitable Alternative Natural Greenspace.

We therefore check designated sites, functionally linked land, protected species, habitats, ancient woodland, hedgerows and biodiversity-net-gain requirements before assuming a developable density. Ecology mitigation may require on-site habitat, off-site units or financial contributions and can alter both net acreage and timing. The ecology and development-land guide explains the assessment.

Former ironstone extraction, quarries, made ground, contamination and existing industrial uses can create abnormal investigation, remediation and foundation costs. Countywide minerals and waste policies can safeguard resources or facilities, while Northamptonshire’s conservation areas, listed buildings, archaeology, historic parkland, village approaches and productive agricultural soils can affect the location, density and design of development.

We convert gross ownership acreage into realistic net developable land after allowing for roads, schools, drainage, habitat, open space, landscape buffers, utilities and easements. Affordable housing, Section 106 obligations, CIL where applicable, abnormal costs, professional fees, finance and the purchaser’s return are then reflected in the residual appraisal. This is why existing-use, hope and development value must be separated rather than applying one Northamptonshire price per acre.