29 Harmer Green Lane, Welwyn, AL6 0AS
About 29 Harmer Green Lane
29 Harmer Green Lane is a detached house in Welwyn (AL6 0AS). It has a recorded floor area of 163 m² (around 1755 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (July 2021) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80).
At 163 m² it sits well below the postcode median (233 m² across 7 EPCs), making it one of the more compact homes locally. One planning record on file: an extension approved in 2006. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 29 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
Energy performance
EPC Rating
Planning history
29 Harmer Green Lane has an approved single-storey rear extension on the planning record.
- May 2006ExtensionFullIn report
Extension: Single storey · Rear of property
SINGLE STOREY REAR EXTENSION
- Reference
- N6/2006/0439/FP
We flagged 1 thing worth checking at 29 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
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Sales history & valuation
29 Harmer Green Lane has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,071,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in AL6 0AS: £840,000 (2025–2013).
Nearby sales in AL6 0AS
Everything we know about 29 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
Floor Area for 29 Harmer Green Lane lags the street by a wide margin.
EPC Rating
67 (D)
Street avg 71 (C)
Floor Area
163 m²
Street avg 230 m²
CO₂ Emissions
5.8 t/year
Street avg 5.9 t/year
Habitable Rooms
8 rooms
Street avg 8 rooms
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
Mornington — bus stop.
Closest school
0.9 km
St John's CofE Primary School. 14 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.