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Get started1 Barnard Green is a two-bedroom semi-detached house in Welwyn Garden City (AL7 3NG). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (August 2024) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in February 2022 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good. The recommended improvements would lift it to B (score 83), a 2-band jump.
Sale prices here have outpaced England HPI: 5.8% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£635/sq ft) was about 190.2% above the typical sold price in the postcode. A recent sale: £417,000 in March 2025. One planning record on file: an extension approved in 2000. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved.
Recommended upgrades on file would lift this property by multiple EPC bands.
1 Barnard Green has an approved rear extension on the planning record.
Rear of property
Latest sale on 1 Barnard Green was the highest on Land Registry record across the postcode.
£422,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 24 years.
£417,000
Growth on file: 5.8% per year over 24 years.
Price per m² for 1 Barnard Green runs comfortably ahead of the street norm.
Price per m²
£6,836
Street avg £3,529
Floor Area
61 m²
Street avg 69 m²
Habitable Rooms
4 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Knella Road — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
REAR CONSERVATORY
27 March 2025Most recent
£417,000
+14.2%over 2 years31 May 2022
£365,000
+231.8%over 20 years3 August 2001
£109,995
Median price across the last 5 sales in AL7 3NG: £300,000 (2020–2011).
Street avg 4 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.0 t/year
AL7 3XH
Closest school
0.4 km
Holwell Primary School. 20 schools nearby.
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