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Get started3 Harrowby Lane is a four-bedroom semi-detached house in Harrowby, Grantham, Grantham (NG31 9HB). It has a recorded floor area of 159 m² (around 1711 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2021) shows a C (score 72). When first surveyed in August 2018 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Poor to Good and lighting went from Average to Very Good. The recommended improvements would lift it to A (score 94), a 2-band jump. Other recorded features include outbuildings and attached land beyond the plot. Records show the property has been extended at some point in its history.
Sale prices here have outpaced England HPI: 9.1% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£250/sq ft) was about 60.8% above the typical sold price in the postcode. At 159 m² the property is well over the postcode median (114 m² across 11 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). It changed hands recently, sold January 2025 for £428,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Recommended upgrades on file would lift this property by multiple EPC bands.
Extension: Side and rear of property
Proposed two storey extension to side and single storey extension to rear
3 Harrowby Lane saw 3 transfers in just over a decade — high turnover for the postcode.
£432,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.1% per year over 6 years.
£428,000
Growth on file: 9.1% per year over 6 years.
3 Harrowby Lane is notably below the street on years held.
Price per m²
£2,692
Street avg £2,453
Floor Area
159 m²
Street avg 135 m²
Habitable Rooms
6 rooms
Street avg 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
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
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Extension: Side and rear of property
Proposed two storey extension to side and single storey extension to rear
24 January 2025Most recent
£428,000
+5.7%over 3 years30 June 2021
£405,000
+62.0%over 2 years16 November 2018
£250,000
Median price across the last 5 sales in NG31 9HB: £350,000 (2024–2021).
CO₂ Emissions
4.4 t/year
Street avg 6.3 t/year
NG31 9UG
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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