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Get started9 Harrowby Lane is a three-bedroom semi-detached house in Harrowby, Grantham, Grantham (NG31 9HB). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (August 2016) shows an F (score 32), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since September 2015. Between certificates, hot-water efficiency went from Poor to Good and main heating went from Average to Good; while wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to A (score 96), a 5-band jump. Other recorded features include notable views and outbuildings.
Sale prices here have outpaced England HPI: 6.3% per year against 0% for the wider region. Today's modelled estimate of £313,000 is 25.2% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£242/sq ft) was about 44.3% above the typical sold price in the postcode. At 96 m² it's 25.6% 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. Sold September 2019 for £250,000. Across the public record there are 7 sales, relatively high churn for a single property.
9 Harrowby Lane sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
Sale price has grown by over 3x since 1997.
£313,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 22 years.
£250,000
Growth on file: 6.3% per year over 22 years.
On epc rating, 9 Harrowby Lane runs well behind the street norm.
Price per m²
£2,604
Street avg £2,466
Floor Area
96 m²
Street avg 141 m²
Habitable Rooms
6 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

Daytime· 07:00 – 23:00
43.5dB

Changes detected from historical EPC data
Switched from oil to mains gas, reducing emissions and costs
Heating controls upgraded for better temperature management
Hot water efficiency improved
Low energy lighting percentage decreased
Are we missing something? Tell us about home improvements to help adjust your valuation.
12 September 2019Most recent
£250,000
+26.6%over 3 years8 December 2015
£197,500
-8.1%over 8 years30 November 2007
£215,000
+41.0%over 4 years31 July 2003
£152,500
+21.5%over 1 year27 June 2002
£125,500
+18.4%over 1 year8 December 2000
£106,000
+63.1%over 3 years22 August 1997
£65,000
Median price across the last 5 sales in NG31 9HB: £350,000 (2025–2022).
Street avg 6 rooms
CO₂ Emissions
11.0 t/year
Street avg 5.7 t/year
NG31 9JY
Newgate Lane — bus stop.
Closest school
1.4 km
Belmont Community Primary School. 8 schools nearby.
Night-time· 23:00 – 07:00
36.4dB
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