47 Warren Way, Welwyn, AL6 0DL
About 47 Warren Way
47 Warren Way is a detached house in Welwyn (AL6 0DL). It has a recorded floor area of 141 m² (around 1518 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (April 2023) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 82), a 3-band jump.
2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. At 141 m² it's 27% larger than the typical home in the postcode (111 m² median across 19 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs).
Know exactly what you're buying at 47 Warren Way
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
47 Warren Way's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Mar 2026ConditionsIn report
Submission of details pursuant to condition number 1 (hard landscaping), on planning permission 6/2025/2339/HOUSE
- Reference
- 6/2026/0431/COND
- Dec 2025DemolitionFullIn report
Extension: Side of property
Erection of a part single and part two storey side extension, installation of two rooflights to the front roof slope of the existing dwelling and alterations to fenestration following the demolition of the existing garage and rear utility.
Extension- Reference
- 6/2025/2339/HOUSE
We flagged 1 thing worth checking at 47 Warren Way
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
47 Warren Way has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£886,000
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 0DL: £875,000 (2025–2019).
Everything we know about 47 Warren Way, 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 Warren Way homes
CO₂ Emissions for 47 Warren Way lags the street by a wide margin.
EPC Rating
47 (E)
Street avg 62 (D)
Floor Area
141 m²
Street avg 126 m²
CO₂ Emissions
8.9 t/year
Street avg 5.2 t/year
Habitable Rooms
7 rooms
Street avg 6 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
Welwyn North Rail Station — railway station.
Closest school
0.9 km
St John's CofE Primary School. 13 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.