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Get started20 Haldens is a mid-terrace house in Welwyn Garden City (AL7 1DB). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1950-1966 and council tax band B. At 51 m² this is the 12th smallest of 27 units on EPC record in the building, where floor areas span 34–109 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (January 2026) shows a C (score 74). When first surveyed in April 2012 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Good to Very Good and lighting went from Average to Good. This certificate was lodged in the last six months, so the rating reflects current condition.
The EPC has just been inspected, so the rating reflects current condition.
20 Haldens has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£194,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
EPC Rating for 20 Haldens runs comfortably ahead of the street norm.
EPC Rating
74 (C)
Street avg 67 (D)
Floor Area
51 m²
Street avg 46 m²
CO₂ Emissions
1.6 t/year
Street avg 2.2 t/year
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Blythway — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in AL7 1DB: £311,000 (2023–2016).
Habitable Rooms
2 rooms
Street avg 2 rooms
AL7 1RL
Closest school
0.7 km
Waterside Academy. 19 schools nearby.