42 Firs Walk, Tewin, Welwyn, AL6 0NZ
About 42 Firs Walk
42 Firs Walk is a detached house in Tewin, Welwyn, Welwyn (AL6 0NZ). It has a recorded floor area of 159 m² (around 1711 sq ft), construction records dating it to 1967-1975 and council tax band G. The latest certificate (May 2015) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). The latest certificate is from May 2015, so improvements made since then won't be reflected.
At 159 m² it sits well below the postcode median (263 m² across 13 EPCs), making it one of the more compact homes locally. One planning record on file: an extension approved in 2014. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 42 Firs Walk
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
42 Firs Walk's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 28 May 2025
EPC Rating
Planning history
- Apr 2014ExtensionIn report
Extension: Single storey · Side and rear of property
Single storey rear and flank extension and extension to existing rear facing dormer to existing detached chalet bungalow.
- Documents
- 5 docs on file
- Reference
- 3/14/0293/CL
We flagged 1 thing worth checking at 42 Firs Walk
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
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Sales history & valuation
42 Firs Walk has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£912,000
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.
Median price across the last 5 sales in AL6 0NZ: £1,301,000 (2023–2021).
Nearby sales in AL6 0NZ
Everything we know about 42 Firs Walk, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Firs Walk homes
42 Firs Walk outperforms the street on co₂ emissions by a wide margin.
EPC Rating
62 (D)
Street avg 57 (D)
Floor Area
159 m²
Street avg 234 m²
CO₂ Emissions
5.5 t/year
Street avg 9.6 t/year
Habitable Rooms
6 rooms
Street avg 9 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.7 km
Desborough Drive — bus stop.
Closest school
1.9 km
Tewin Cowper Church of England Voluntary Aided Primary School. 7 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.