11 Sevenacres, Tewin, Welwyn, AL6 0FD
About 11 Sevenacres
11 Sevenacres is a five-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0FD). It has a recorded floor area of 208 m² (around 2239 sq ft), construction records dating it to 2012 onwards and council tax band G. The latest certificate (November 2023) returns a B (score 81), comfortably above the UK average. The rating has held steady at B across 2 certificates since November 2013. Between certificates, window efficiency dropped from Very Good to Good.
One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Last sold in April 2014, so it's been off the market for around 12 years. Today's modelled estimate of £1,029,000 is 17.6% above the 2014 sale price.
Know exactly what you're buying at 11 Sevenacres
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
- Bathrooms3
Energy performance
Achieving this rating across a home of this size is uncommon — larger homes typically score lower.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
Planning history
- Nov 2018ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension, elevational alterations together with moving of existing garden wall between existing detached garage and the main house.
- Documents
- 9 docs on file
- Reference
- 3/18/2166/HH
We flagged 1 thing worth checking at 11 Sevenacres
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
£1,029,000
Modelled from EPC, postcode comparables.
£875,000
Recorded with HM Land Registry.
Sales timeline
24 April 2014Most recent
£875,000
Median price across the last 5 sales in AL6 0FD: £975,000 (2025–2019).
Nearby sales in AL6 0FD
Everything we know about 11 Sevenacres, 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 Sevenacres homes
11 Sevenacres is notably below the street on epc rating.
Price per m²
£4,207
Street avg £4,396
Floor Area
208 m²
Street avg 160 m²
Habitable Rooms
8 rooms
Street avg 9 rooms
CO₂ Emissions
3.7 t/year
Street avg 2.5 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Plume of Feathers PH — bus stop.
Closest school
0.7 km
Tewin Cowper Church of England Voluntary Aided Primary School. 9 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.