17a, Briary Wood Lane, Welwyn, AL6 0TE
About 17a
17a is a three-bedroom detached house in Welwyn (AL6 0TE). It has a recorded floor area of 140 m² (around 1507 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (November 2020) shows a D (score 56), a step below the typical UK home. The recommended improvements would push it to C (score 72). Other recorded features include attached land beyond the plot.
At 140 m² it sits well below the postcode median (205 m² across 9 EPCs), making it one of the more compact homes locally. One planning record on file: an extension approved in 2025. Past consents include an extension, meaningful when judging how the property has evolved. Across 2006–2021, sale prices on this property compounded at 2.5% per year. Today's modelled estimate of £838,000 is 10.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£504/sq ft) was about 27.5% above the typical sold price in the postcode. Sold May 2021 for £760,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 17a
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
- Bedrooms3
- Bathrooms2
- Dining roomYes
- Utility roomYes
Outside
- GarageIntegral
- LandYes
Energy performance
17a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
17a has an approved extension on the planning record.
- Jan 2025ExtensionFullIn report
Erection of additional storey, front entrance canopy, extension of raised rear patio and alterations to fenestration
- Reference
- 6/2024/1978/HOUSE
We flagged 1 thing worth checking at 17a
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
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£838,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 15 years.
£760,000
Growth on file: 2.5% per year over 15 years.
Sales timeline
6 May 2021Most recent
£760,000
+43.3%over 14 years3 August 2006
£530,500
Median price across the last 5 sales in AL6 0TE: £925,000 (2023–2017).
Nearby sales in AL6 0TE
Everything we know about 17a, 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 Briary Wood Lane homes
Floor Area for 17a lags the street by a wide margin.
Price per m²
£5,429
Street avg £4,101
Floor Area
140 m²
Street avg 198 m²
Habitable Rooms
4 rooms
Street avg 7 rooms
CO₂ Emissions
6.7 t/year
Street avg 6.8 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Mardley Avenue — bus stop.
Closest school
0.5 km
Oaklands Primary School. 6 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.