11 Firs Walk, Tewin, Welwyn, AL6 0NY
About 11 Firs Walk
11 Firs Walk is a five-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0NY). It has a recorded floor area of 266 m² (around 2863 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (March 2015) shows a C (score 71). The latest certificate is from March 2015, so improvements made since then won't be reflected. Other recorded features include outbuildings. Period features are noted in the property record.
At 266 m² it's 20.4% larger than the typical home in the postcode (221 m² median across 14 EPCs). Across 1995–2015, sale prices on this property compounded at 8.2% per year. Today's modelled estimate of £1,512,000 is 26% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£419/sq ft) was about 31.4% above the typical sold price in the postcode. On the market in August 2015 and unlisted since — roughly 11 years.
Know exactly what you're buying at 11 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
- Bathrooms4
- Dining roomYes
Outside
- Private gardenYes
- GarageDouble
- OutbuildingsYes
Building
- Period featuresYes
Energy performance
11 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This certificate is over 10 years old and is no longer valid.Expired 06 Mar 2025
EPC Rating
Planning history
11 Firs Walk has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 11 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
11 Firs Walk has more than quadrupled in price since its earliest registered sale in 1995.
£1,512,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.2% per year over 20 years.
£1,200,000
Growth on file: 8.2% per year over 20 years.
Sales timeline
2 August 2015Most recent
£1,200,000
+400.0%over 20 years30 March 1995
£240,000
Median price across the last 5 sales in AL6 0NY: £1,300,000 (2025–2020).
Nearby sales in AL6 0NY
Everything we know about 11 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
On habitable rooms, 11 Firs Walk stands well clear of the street.
Price per m²
£4,511
Street avg £4,643
Floor Area
266 m²
Street avg 238 m²
Habitable Rooms
9 rooms
Street avg 8 rooms
CO₂ Emissions
6.3 t/year
Street avg 8.4 t/year
Similar properties nearby
1 Desborough Drive, Tewin
AL6 0HQ
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AL6 0AZ
1 Broom Hill
AL6 0SF
1 Badgers Walk, Tewin
AL6 0HP
1 Cob Lane Close, Digswell
AL6 0DD
1 Churchfield Road, Tewin
AL6 0JW
1 Chestnut Walk
AL6 0SB
1 Barneswood
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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.