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Get started12 Cowslips is a one-bedroom semi-detached house in Welwyn Garden City (AL7 2JJ). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (October 2025) shows a D (score 59), a step below the typical UK home. When first surveyed in January 2020 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, hot-water efficiency went from Very Poor to Poor and main heating went from Very Poor to Poor; while lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 76). Main heating runs on electricity. At 46 m² this is the 9th smallest of 13 units on EPC record in the building, where floor areas span 36–51 m². The building's EPC ratings span E to C across 13 units on file.
Held since August 2003 — that's 23 years off the open market, well above the local norm. Sale prices here have outpaced England HPI: 14.4% per year against 0% for the wider region. Today's modelled estimate of £202,000 sits 83.6% above the 2003 sale of £110,000. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.
12 Cowslips's carbon output is low for the local stock.
12 Cowslips valuation sits well clear of the typical sold price in this postcode.
£202,000
Modelled from EPC, postcode comparables and a sale-price growth of 14.4% per year over 2 years.
£110,000
Growth on file: 14.4% per year over 2 years.
CO₂ Emissions for 12 Cowslips runs comfortably ahead of the street norm.
Price per m²
£2,391
Street avg £3,609
Floor Area
46 m²
Street avg 48 m²
Habitable Rooms
2 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Birchall Wood — bus stop.
Changes detected from historical EPC data
Hot water system upgraded
Cavity wall insulation installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
8 August 2003Most recent
£110,000
+34.1%over 2 years1 June 2001
£82,000
Median price across the last 5 sales in AL7 2JJ: £205,000 (2025–2018).
Street avg 2 rooms
CO₂ Emissions
0.8 t/year
Street avg 2.7 t/year
AL7 2BJ
Closest school
0.3 km
Watchlytes Primary School. 16 schools nearby.
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