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Get started21b is a three-bedroom semi-detached house in Alderton, Tewkesbury, Tewkesbury (GL20 8NL). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (January 2025) shows a C (score 73). When first surveyed in July 2009 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Poor to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to B (score 85).
Sale prices here have outpaced Tewkesbury HPI: 30.7% per year against 0% for the wider region. Today's modelled estimate of £439,000 sits 75.6% above the 2012 sale of £250,000. On a £-per-square-foot basis, the last sale (£204/sq ft) was about 23.6% below the postcode norm. On the market in November 2012 and unlisted since — roughly 14 years.
21b valuation sits well clear of the typical sold price in this postcode.
£439,000
Modelled from EPC, postcode comparables and a sale-price growth of 30.7% per year over 2 years.
£250,000
Growth on file: 30.7% per year over 2 years.
On price per m², 21b runs well behind the street norm.
Price per m²
£2,193
Street avg £3,149
Floor Area
114 m²
Street avg 128 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
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km

Daytime· 07:00 – 23:00
43.6dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Cavity wall insulation installed
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
2 November 2012Most recent
£250,000
+51.5%over 1 year15 April 2011
£165,000
Median price across the last 5 sales in GL20 8NL: £542,000 (2025–2024).
CO₂ Emissions
3.2 t/year
Street avg 3.8 t/year
GL20 8JY
Gardeners Arms — bus stop.
Closest school
0.3 km
Oak Hill Church of England Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
36.4dB
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