20 Turmore Dale, Welwyn Garden City, AL8 6HS
About 20 Turmore Dale
20 Turmore Dale is a three-bedroom semi-detached house in Welwyn Garden City (AL8 6HS). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (August 2015) shows a C (score 72). The recommended improvements would push it to B (score 85). The latest certificate is from August 2015, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.
15 planning records sit against the property, 10 approved, 3 refused. Past consents include an extension, a loft conversion, tree works and a conservatory, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. At 101 m² it's 29.5% larger than the typical home in the postcode (78 m² median across 17 EPCs). Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). Across 2007–2016, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £688,000 is 16.4% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£544/sq ft) was about 38.4% above the typical sold price in the postcode. 10 years since the last transfer (August 2016).
Know exactly what you're buying at 20 Turmore Dale
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
- GarageYes
Building
- RefurbishedYes
- Extension potentialPossible
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 25 Aug 2025
EPC Rating
Planning history
A tree works application was refused at 20 Turmore Dale in 2023.
- Mar 2026Garage ConversionIn report
Extension: Front of property
Part garage conversion and front infill extension
Extension- Reference
- 6/2026/0382/EM
- Feb 2026Garage ConversionFullIn report
Extension: Front of property
Part conversion of existing garage, front infill extension and alterations to fenestration
Extension- Reference
- 6/2026/0358/HOUSE
We flagged 1 thing worth checking at 20 Turmore Dale
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.
- A planning decision worth checking
30-day money-back guarantee
Sales history & valuation
20 Turmore Dale valuation sits well clear of the typical sold price in this postcode.
£688,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.1% per year over 9 years.
£591,000
Growth on file: 7.1% per year over 9 years.
Sales timeline
24 August 2016Most recent
£591,000
+87.6%over 9 years3 June 2007
£315,000
Median price across the last 5 sales in AL8 6HS: £630,000 (2023–2014).
Nearby sales in AL8 6HS
4 Turmore Dale, Welwyn Garden City, AL8 6HS
Sold Aug 2023
£650,00018 Turmore Dale, Welwyn Garden City, AL8 6HS
Sold May 2022
£730,00024 Turmore Dale, Welwyn Garden City, AL8 6HS
Sold Jan 2021
£630,00028 Turmore Dale, Welwyn Garden City, AL8 6HS
Sold Jun 2016
£610,0002 Turmore Dale, Welwyn Garden City, AL8 6HS
Sold Dec 2014
£499,500
Everything we know about 20 Turmore Dale, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- A planning decision worth checking

Versus other Turmore Dale homes
EPC Rating for 20 Turmore Dale runs comfortably ahead of the street norm.
Price per m²
£5,851
Street avg £5,828
Floor Area
101 m²
Street avg 74 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.3 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Barn Close — bus stop.
Closest school
0.4 km
Applecroft School. 21 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.