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Get started15 Harrowby Lane is a three-bedroom semi-detached house in Harrowby, Grantham, Grantham (NG31 9HB). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (February 2021) shows an F (score 35), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 79), a 3-band jump. Other recorded features include notable views and attached land beyond the plot.
Sale prices here have outpaced England HPI: 3.7% per year against 0% for the wider region. Today's modelled estimate of £388,000 is 10.9% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£316/sq ft) was about 110.7% above the typical sold price in the postcode. At 103 m² it's 20.2% smaller than the typical home in the postcode (129 m² median across 11 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Most recent transfer: February 2022 at £350,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
15 Harrowby Lane sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£388,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 16 years.
£350,000
Growth on file: 3.7% per year over 16 years.
15 Harrowby Lane outperforms the street on price per m² by a wide margin.
Price per m²
£3,398
Street avg £2,352
Floor Area
103 m²
Street avg 140 m²
Habitable Rooms
4 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Newgate Lane — bus stop.

Daytime· 07:00 – 23:00
43.5dB

18 February 2022Most recent
£350,000
+81.3%over 16 years14 October 2005
£193,000
Median price across the last 5 sales in NG31 9HB: £405,000 (2025–2021).
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 6.3 t/year
NG31 9JY
Closest school
1.4 km
Belmont Community Primary School. 8 schools nearby.
Night-time· 23:00 – 07:00
36.4dB
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