3 School Lane, Tewin, Welwyn, AL6 0JR
About 3 School Lane
3 School Lane is a three-bedroom semi-detached house in Tewin, Welwyn, Welwyn (AL6 0JR). It has a recorded floor area of 79 m² (around 848 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (January 2011) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 61). The latest certificate is from January 2011, so improvements made since then won't be reflected.
5 planning records sit against the property, 5 approved, 0 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Last changed hands 15 years ago, in July 2011. Today's modelled estimate of £522,000 is 49.1% above the 2011 sale price.
Know exactly what you're buying at 3 School 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
- Bedrooms3
Energy performance
3 School Lane'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This certificate is over 10 years old and is no longer valid.Expired 24 Jan 2021
EPC Rating
Planning history
3 School Lane has been extended on multiple sides of the property across separate planning applications.
- Apr 2020PorchFullIn report
Extension: Single storey · Front of property
Demolition of porch. Erection of a single storey front extension.
Extension- Documents
- 8 docs on file
- Reference
- 3/20/0174/HH
- Nov 2019PorchAmendmentIn report
A non-material amendment of (approved planning) Ref : 3/19/1005/HH -(Demolition of existing porch and construction of single storey front extension) - for the addition of a velux window to the porch, removal of a window and internal alterations.
Extension- Documents
- 8 docs on file
- Reference
- 3/19/2133/NMA
We flagged 1 thing worth checking at 3 School 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
3 School Lane valuation sits well clear of the typical sold price in this postcode.
£522,000
Modelled from EPC, postcode comparables.
£350,000
Recorded with HM Land Registry.
Sales timeline
3 July 2011Most recent
£350,000
Median price across the last 5 sales in AL6 0JR: £500,000 (2024–2015).
Nearby sales in AL6 0JR
Everything we know about 3 School 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 School Lane homes
3 School Lane is notably below the street on floor area.
Price per m²
£4,444
Street avg £5,167
Floor Area
79 m²
Street avg 94 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.2 t/year
Street avg 4.5 t/year
Similar properties nearby
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1 Avenue Court
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1 Barneswood
AL6 0EU
1 Chestnut Walk
AL6 0SB
1 Churchfield Road, Tewin
AL6 0JW
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Grasswarren Estate — bus stop.
Closest school
0.2 km
Tewin Cowper Church of England Voluntary Aided Primary School. 10 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.