48 Firs Walk, Tewin, Welwyn, AL6 0NZ
About 48 Firs Walk
48 Firs Walk is a five-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0NZ). It has a recorded floor area of 416 m² (around 4478 sq ft), construction records dating it to 1976-1982 and council tax band H. The latest certificate (October 2015) shows a C (score 72). The latest certificate is from October 2015, so improvements made since then won't be reflected.
At 416 m² the property is well over the postcode median (230 m² across 13 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 77% of similar EPCs). 9 years since the last transfer (February 2017). Across the public record there are 5 sales, relatively high churn for a single property. Across 1998–2017, sale prices on this property compounded at 6.5% per year. On a £-per-square-foot basis, the last sale (£268/sq ft) was about 39.4% below the postcode norm. One historical planning record sits against the property in 2013.
Know exactly what you're buying at 48 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
What this property has
Inside
- Bedrooms5
- Bathrooms5
Energy performance
48 Firs Walk's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Oct 2025
EPC Rating
Planning history
- Jun 2013FullIn report
Erection of 1.8m high wrought iron gates, pedestrian gate and post box
- Documents
- 8 docs on file
- Reference
- 3/13/0572/FP
We flagged 1 thing worth checking at 48 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
30-day money-back guarantee
Sales history & valuation
Sale price has grown by over 3x since 1998.
£1,309,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 19 years.
£1,200,000
Growth on file: 6.5% per year over 19 years.
Sales timeline
23 February 2017Most recent
£1,200,000
+4.3%over 8 years9 June 2008
£1,150,000
+45.6%over 5 years17 July 2002
£790,000
1 May 2001
£790,000
+115.3%over 3 years28 April 1998
£367,000
Median price across the last 5 sales in AL6 0NZ: £1,301,000 (2023–2021).
Nearby sales in AL6 0NZ
Everything we know about 48 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
Price per m² for 48 Firs Walk lags the street by a wide margin.
Price per m²
£2,885
Street avg £6,290
Floor Area
416 m²
Street avg 214 m²
Habitable Rooms
12 rooms
Street avg 8 rooms
CO₂ Emissions
12.0 t/year
Street avg 9.1 t/year
Similar properties nearby
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1 Cob Lane Close, Digswell
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1 Churchfield Road, Tewin
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1 Chestnut Walk
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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.