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Get started10 Duncan Close is a three-bedroom mid-terrace house in Welwyn Garden City (AL7 3XP). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (November 2023) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (January 2010); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good and lighting went from Average to Good. The recommended improvements would lift it to B (score 85), a 2-band jump. Other recorded features include a conservatory. Our model identifies extension potential, subject to local planning policy. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 6.2% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£591/sq ft) was about 111.9% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, partial demolition and a conservatory, meaningful when judging how the property has evolved. At 66 m² it's 17.9% larger than the typical home in the postcode (56 m² median across 36 EPCs). Most recent transfer: July 2024 at £420,000.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Latest sale on 10 Duncan Close was the highest on Land Registry record across the postcode.
£432,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 26 years.
£420,000
Growth on file: 6.2% per year over 26 years.
10 Duncan Close is notably below the street on years held.
Price per m²
£6,364
Street avg £4,915
Floor Area
66 m²
Street avg 57 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
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
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
Erection of single storey rear extension following demolition of conservatory
Extension: Rear of property
REAR CONSERVATORY
17 July 2024Most recent
£420,000
+9.1%over 4 years21 February 2020
£385,000
+22.0%over 4 years17 August 2015
£315,500
+28.3%over 8 years25 June 2007
£246,000
+26.2%over 2 years14 October 2004
£194,950
+76.4%over 4 years22 November 1999
£110,500
+22.8%over 1 year6 November 1998
£90,000
Median price across the last 5 sales in AL7 3XP: £350,000 (2025–2023).
CO₂ Emissions
2.7 t/year
Street avg 2.4 t/year
AL7 3ST
Closest school
0.2 km
Holwell Primary School. 21 schools nearby.
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