20 Chestnut Walk, Welwyn, AL6 0SB
About 20 Chestnut Walk
20 Chestnut Walk is a detached house in Welwyn (AL6 0SB). It has a recorded floor area of 157 m² (around 1690 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (April 2015) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 78). The latest certificate is from April 2015, so improvements made since then won't be reflected.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include a garage conversion and an extension, meaningful when judging how the property has evolved. Across 1997–2015, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £734,000 is 13.8% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£382/sq ft) was about 25.6% above the typical sold price in the postcode. On the market in November 2015 and unlisted since — roughly 11 years.
Know exactly what you're buying at 20 Chestnut 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
Energy performance
20 Chestnut Walk'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This certificate is over 10 years old and is no longer valid.Expired 09 Apr 2025
EPC Rating
Planning history
- Jul 2011Garage ConversionOutlineIn report
Conversion of existing store (part of former garage space) to study including replacement of existing garage doors with window to match existing
- Documents
- 4 docs on file
- Reference
- N6/2011/1062/LU
- Feb 2000ExtensionFullIn report
Extension: Single storey
NEW FIRST FLOOR WITH FRONT AND REAR DORMER WINDOWS AND GABLE TO REAR
- Reference
- N6/2000/0045/FP
We flagged 1 thing worth checking at 20 Chestnut 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
20 Chestnut Walk has more than quadrupled in price since its earliest registered sale in 1997.
£734,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 18 years.
£645,000
Growth on file: 8.5% per year over 18 years.
Sales timeline
5 November 2015Most recent
£645,000
+53.6%over 9 years22 December 2005
£420,000
+183.8%over 8 years28 September 1997
£148,000
Median price across the last 5 sales in AL6 0SB: £750,000 (2025–2018).
Nearby sales in AL6 0SB
Everything we know about 20 Chestnut 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 Chestnut Walk homes
On co₂ emissions, 20 Chestnut Walk runs well behind the street norm.
Price per m²
£4,108
Street avg £4,434
Floor Area
157 m²
Street avg 171 m²
Habitable Rooms
9 rooms
Street avg 8 rooms
CO₂ Emissions
7.9 t/year
Street avg 5.9 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Mardley Avenue — bus stop.
Closest school
0.6 km
Oaklands 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.