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Get started10 Chelveston is a four-bedroom detached house in Welwyn Garden City (AL7 2PW). It has a recorded floor area of 121 m² (around 1302 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (December 2025) shows a C (score 71). When first surveyed in May 2012 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 81). This certificate was lodged in the last six months, so the rating reflects current condition.
One planning record on file: an extension approved in 2003. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. At 121 m² it's 16.3% larger than the typical home in the postcode (104 m² median across 13 EPCs). Today's modelled estimate of £742,000 is 34.9% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£422/sq ft) was about 19.7% above the typical sold price in the postcode. Last changed hands 10 years ago, in November 2015.
The EPC has just been inspected, so the rating reflects current condition.
10 Chelveston has an approved rear extension on the planning record.
10 Chelveston valuation sits well clear of the typical sold price in this postcode.
£742,000
Modelled from EPC, postcode comparables.
£550,000
Recorded with HM Land Registry.
10 Chelveston outperforms the street on habitable rooms by a wide margin.
Price per m²
£4,545
Street avg £4,850
Floor Area
121 m²
Street avg 117 m²
Habitable Rooms
8 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Chelveston — bus stop.
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Rear of property
REAR CONSERVATORY
27 November 2015Most recent
£550,000
Median price across the last 5 sales in AL7 2PW: £670,000 (2024–2021).
Street avg 6 rooms
CO₂ Emissions
3.7 t/year
Street avg 4.5 t/year
AL7 2PW
Closest school
0.6 km
Springmead Primary School. 14 schools nearby.
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