5b, Firbank, Barn Close, Welwyn Garden City, AL8 6SU
About 5b
5b is a semi-detached house in Welwyn Garden City (AL8 6SU). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (September 2018) returns a B (score 82), comfortably above the UK average. When first surveyed in December 2010 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Average to Very Good and window efficiency went from Average to Very Good. At 46 m² this is the 5th smallest of 9 units on EPC record in the building, where floor areas span 36–61 m². The building's EPC ratings span F to B, with this unit at the top.
Its energy rating outperforms most of the postcode (better than 88% of similar EPCs).
Know exactly what you're buying at 5b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
5b's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
High performance glazing installed
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
Floor insulation added or improved
Planning history
5b has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
5b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£250,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
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.
Everything we know about 5b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Firbank homes
On epc rating, 5b stands well clear of the street.
EPC Rating
82 (B)
Street avg 70 (C)
Floor Area
46 m²
Street avg 43 m²
CO₂ Emissions
0.8 t/year
Street avg 2.1 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Farm Close — bus stop.
Closest school
0.3 km
Applecroft School. 21 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.