Grantham Property Market: House Prices, Sold Data & Development Finance, Q3 2026 Review

Grantham: ECML market town with major southern growth area and fast London services.

The Grantham property market recorded 1,149 residential sales in the 12 months to 30 June 2026, with a median sale price of £221,000. This places Grantham £500 above the Lincolnshire county median of £220,500, and £64k below the approximate UK median of £285,000.

Prices in Grantham have recorded a moderate decline, a year-on-year change of -3.9%. Within Lincolnshire, Grantham ranks 4th by price out of 8 principal towns, and 6th by transaction volume.

On a quarterly view, Grantham median prices moved from £240,000 in Q1 2025 to £233,500 in Q2 2026, a change of -2.7% over 5 quarters.

South Kesteven, the local planning authority covering Grantham, approved 21 residential planning applications and refused 10 in Q3 2026 (1 July to 30 September 2026), with 67 still awaiting a decision. That is an approval rate of 68%. Planning figures come from local planning authority records compiled by Landstack, retrieved on 3 October 2026. Councils and Landstack can take several days to publish decisions, so decisions made in the final days of Q3 2026 may not all be included yet.

Schemes approved in Q3 2026, together with those still awaiting a decision, propose around 1,701 homes, an estimated £374.5m of development value at local sale prices. Treat the unit total as an upper bound, since an outline permission and its reserved-matters application both count.

South Kesteven covers more than one town in Lincolnshire, so these figures are authority-wide rather than specific to Grantham alone.

Property prices in Grantham vary significantly by type. The table below compares Grantham prices with Lincolnshire county averages and UK national figures.

Detached homes in Grantham command £331,000, while flat properties are most accessible at £100,000. The £231k spread between the most and least expensive types indicates a diverse market with opportunities across the development spectrum.

HM Land Registry has so far registered 45 new-build sales in Grantham for the past 12 months, 3.9% of registered transactions. New-build sales are typically registered 6 to 18 months after completion, so this understates current delivery and is not a completions figure.

On those registered sales, new builds in Grantham sold at a premium of 38.6% to existing stock.

Across the wider Lincolnshire market, 656 new-build sales have registered so far. See our Lincolnshire property market report for the full county picture.

The table below shows the most recently registered residential sales in Grantham, evidence of achieved prices for buyers, sellers and developers:

These transactions are sourced from HM Land Registry Price Paid data and represent completed, registered sales. The range from £105,000 to £495,000 illustrates the breadth of the Grantham market.

For developers considering Grantham, the local market data translates directly into finance structuring. With a median value of £221,000 and detached homes at £331,000, lenders can assess scheme viability with confidence.

A typical development finance facility for a scheme in Grantham with a GDV of £331,000 would attract senior debt of approximately £215,150 at 65% LTGDV. Mezzanine finance can stretch total borrowing to 85-90% of costs, while bridging loans enable rapid site acquisitions completing in as little as 5 working days.

While prices have softened 3.9% year-on-year, experienced developers can still generate strong returns in Grantham by targeting well-located sites with clear demand drivers.

Ready to develop in Grantham? Submit your scheme for indicative terms within 24 hours from our panel of 100+ lenders.

To put Grantham's market in context, the table below compares it with similarly-priced towns across Lincolnshire:

For the full Lincolnshire town-by-town breakdown, see our comprehensive Lincolnshire property market report.