10 Firs Walk, Tewin, Welwyn, AL6 0NZ
About 10 Firs Walk
10 Firs Walk is a five-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0NZ). It has a recorded floor area of 276 m² (around 2971 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (November 2024) shows a C (score 73).
Held since March 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £1,642,000 sits 105.4% above the 2007 sale of £799,500. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. At 276 m² it's 20% larger than the typical home in the postcode (230 m² median across 13 EPCs). Its energy rating outperforms most of the postcode (better than 77% of similar EPCs).
Know exactly what you're buying at 10 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
Energy performance
10 Firs Walk's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Mar 2016RenovationFullIn report
Replacement of existing rear balcony
- Documents
- 9 docs on file
- Reference
- 3/16/0164/HH
- May 2009ExtensionFullIn report
Extension: Single storey · Side of property
Single storey side extension and provision of new rear terrace
- Agent
- Weal-Architects
- Documents
- 9 docs on file
- Reference
- 3/09/0452/FP
We flagged 1 thing worth checking at 10 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
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£1,642,000
Modelled from EPC, postcode comparables.
£799,500
Recorded with HM Land Registry.
Sales timeline
28 March 2007Most recent
£799,500
Median price across the last 5 sales in AL6 0NZ: £1,301,000 (2023–2021).
Nearby sales in AL6 0NZ
Everything we know about 10 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 epc rating, 10 Firs Walk stands well clear of the street.
Price per m²
£2,897
Street avg £6,289
Floor Area
276 m²
Street avg 225 m²
Habitable Rooms
10 rooms
Street avg 8 rooms
CO₂ Emissions
6.8 t/year
Street avg 9.5 t/year
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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.