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Get started9 Coltsfoot is a five-bedroom detached house in Welwyn Garden City (AL7 3HZ). It has a recorded floor area of 140 m² (around 1507 sq ft), construction records dating it to 1991-1995 and council tax band F. The latest certificate (May 2021) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2010. Between certificates, hot-water efficiency went from Average to Good, lighting went from Poor to Very Good and main heating went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 80).
Untraded for 20 years, with the last transfer in April 2006. Sale prices here have outpaced England HPI: 8.3% per year against 0% for the wider region. Today's modelled estimate of £662,000 sits 110.2% above the 2006 sale of £315,000. On a £-per-square-foot basis, the last sale (£209/sq ft) was about 36.1% below the postcode norm. At 140 m² the property is well over the postcode median (100 m² across 23 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. 5 planning records sit against the property, 5 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
9 Coltsfoot has 4 separate extension applications on the council record.
Extension: Part single, part two storey · Rear of property
Erection of part single, part two storey rear extension
9 Coltsfoot's estimated value is more than triple its earliest registered sale price (2000).
£662,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.3% per year over 5 years.
£315,000
Growth on file: 8.3% per year over 5 years.
9 Coltsfoot outperforms the street on floor area by a wide margin.
Price per m²
£2,250
Street avg £5,008
Floor Area
140 m²
Street avg 100 m²
Habitable Rooms
8 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Sweet Briar — 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: Two storey · Rear of property
Certificate of lawfulness for erection of a two storey rear extension
3 more applications for this property
Join to see all planning history.
19 April 2006Most recent
£315,000
+53.7%over 5 years5 December 2000
£205,000
Median price across the last 5 sales in AL7 3HZ: £580,000 (2025–2023).
Street avg 6 rooms
CO₂ Emissions
4.4 t/year
Street avg 4.1 t/year
AL7 3HZ
Closest school
0.5 km
Swallow Dell Primary and Nursery School. 17 schools nearby.
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