11a, Oaklea, Welwyn, AL6 0PT
About 11a
11a is a five-bedroom detached house in Welwyn (AL6 0PT). It has a recorded floor area of 236 m² (around 2544 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (December 2009) shows a C (score 73). The latest certificate is from December 2009, so improvements made since then won't be reflected. The home occupies a corner plot.
Held since July 2010 — that's 16 years off the open market, well above the local norm. At 236 m² it's 24.4% larger than the typical home in the postcode (190 m² median across 14 EPCs). 3 planning records sit against the property, 1 approved, 2 refused. Across 2003–2010, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £895,000 is 39.8% above the 2010 sale price.
Know exactly what you're buying at 11a
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
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenSouth-facing
- Corner plotYes
Building
- Central heatingYes
Energy performance
11a'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This certificate is over 10 years old and is no longer valid.Expired 15 Dec 2019
EPC Rating
Planning history
- Dec 2007FullIn report
RETENTION OF DWELLING WITHOUT COMPLIANCE OF CONDITION 3 OF PLANNING PERMISSION N6/2002/0681/FP (REMOVAL OF FRONT BOUNDARY HEDGE)
- Documents
- 2 docs on file
- Reference
- N6/2007/1496/FP
- Nov 2002Demolition And RebuildFullIn report
TWO DETACHED DWELLINGS AND GARAGE, FOLLOWING DEMOLITION OF EXISTING DWELLING
- Reference
- N6/2002/0681/FP
We flagged 1 thing worth checking at 11a
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
11a saw 3 transfers in just over a decade — high turnover for the postcode.
£895,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 7 years.
£640,000
Growth on file: 8.5% per year over 7 years.
Sales timeline
15 July 2010Most recent
£640,000
+28.8%over 6 years5 March 2004
£497,000
+42.0%over 1 year10 February 2003
£350,000
Median price across the last 5 sales in AL6 0PT: £675,000 (2025–2017).
Everything we know about 11a, 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 Oaklea homes
Price per m²
£2,708
Street avg £3,450
Floor Area
236 m²
Street avg 182 m²
Habitable Rooms
10 rooms
Street avg 7 rooms
CO₂ Emissions
6.0 t/year
Street avg 7.5 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
The Avenue — bus stop.
Closest school
0.1 km
Oaklands 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.