14 Harmer Green Lane, Welwyn, AL6 0AX
About 14 Harmer Green Lane
14 Harmer Green Lane is a four-bedroom detached house in Welwyn (AL6 0AX). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (June 2024) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity.
At 115 m² it's 16.2% larger than the typical home in the postcode (99 m² median across 5 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). On a £-per-square-foot basis, the last sale (£614/sq ft) was about 24.6% above the typical sold price in the postcode. Last sale on file: £760,464 in October 2024.
Know exactly what you're buying at 14 Harmer Green Lane
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
- Bedrooms4
- Bathrooms1
Energy performance
14 Harmer Green Lane's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
14 Harmer Green Lane has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 14 Harmer Green Lane
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
14 Harmer Green Lane valuation sits well clear of the typical sold price in this postcode.
£773,000
Modelled from EPC, postcode comparables.
£760,464
Recorded with HM Land Registry.
Sales timeline
30 October 2024Most recent
£760,464
Median price across the last 5 sales in AL6 0AX: £480,000 (2022–2009).
Everything we know about 14 Harmer Green Lane, 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 Harmer Green Lane homes
On years held, 14 Harmer Green Lane runs well behind the street norm.
Price per m²
£6,613
Street avg £6,025
Floor Area
115 m²
Street avg 95 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
9.4 t/year
Street avg 5.1 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
0.0 km
Welwyn North Railway Station — bus stop.
Closest school
0.5 km
St John's CofE Primary School. 15 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.