3 Barneswood, Welwyn, AL6 0EU
About 3 Barneswood
3 Barneswood is a 19-bedroom detached house in Welwyn (AL6 0EU). It has a recorded floor area of 1078 m² (around 11603 sq ft), construction records dating it to 1900-1929 and council tax band H. The latest certificate (May 2021) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in January 2010 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Good to Very Good and main heating went from Average to Good. The recommended improvements would push it to C (score 78).
Across 2010–2022, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £3,725,000 is 37.9% below the 2022 sale of £6,000,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. At 1078 m² the property is well over the postcode median (194 m² across 4 EPCs), placing it in the larger end of the local stock. 19 bedrooms is on the larger side for this postcode, where 5 is the typical count. 6 planning records sit against the property, 4 approved, 2 refused. Last sale on file: £6,000,000 in January 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 3 Barneswood
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
- Bedrooms19
Energy performance
3 Barneswood's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Single glazing replaced with double or better glazing
More low energy lighting installed
Planning history
A recent planning application at 3 Barneswood was refused — worth checking the council file.
- Dec 2025OutbuildingFullIn report
Erection of a detached ancillary outbuilding
- Reference
- 6/2025/2185/HOUSE
- Dec 2025OutbuildingOutlineIn report
Certificate of lawfulness for the erection of an ancillary detached outbuilding
- Reference
- 6/2025/2184/LAWP
We flagged 1 thing worth checking at 3 Barneswood
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 in the post-pandemic price surge — useful context when reading the figure.
£3,725,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.2% per year over 11 years.
£6,000,000
Growth on file: 5.2% per year over 11 years.
Sales timeline
4 January 2022Most recent
£6,000,000
+79.1%over 11 years10 August 2010
£3,350,000
Median price across the last 3 sales in AL6 0EU: £1,800,000 (2022–2008).
Everything we know about 3 Barneswood, 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 Barneswood homes
On floor area, 3 Barneswood stands well clear of the street.
Price per m²
£5,566
Street avg £5,896
Floor Area
1078 m²
Street avg 188 m²
Habitable Rooms
15 rooms
Street avg 7 rooms
CO₂ Emissions
36.0 t/year
Street avg 7.3 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Kitts Corner — bus stop.
Closest school
1.6 km
Oaklands Primary School. 11 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.