2 Grass Warren, Tewin, Welwyn, AL6 0JJ
About 2 Grass Warren
2 Grass Warren is a property in Tewin, Welwyn, Welwyn (AL6 0JJ). It has council tax band D.
Untraded for 24 years, with the last transfer in July 2002. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2002, sale prices on this property compounded at 6.7% per year.
Know exactly what you're buying at 2 Grass Warren
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
No EPC on record
This property doesn't have an Energy Performance Certificate yet. An EPC is required to sell or let — and unlocks our automated valuation.
Planning history
2 Grass Warren has been extended on multiple sides of the property across separate planning applications.
- Oct 2018ExtensionFullIn report
Extension: Single storey · Rear of property
Removal of conservatory. Proposed single storey rear pitched roof garden room extension.
- Documents
- 9 docs on file
- Reference
- 3/18/1965/HH
- Feb 2004ExtensionFullIn report
Extension: Part single, part two storey · Side and rear of property
Two storey and single storey front ,side and rear extensions
- Reference
- 3/03/1925/FP
We flagged 1 thing worth checking at 2 Grass Warren
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
2 Grass Warren saw 3 transfers in just over a decade — high turnover for the postcode.
£216,000
Growth on file: 6.7% per year over 3 years.
Sales timeline
18 July 2002Most recent
£216,000
+15.2%over 1 year3 August 2000
£187,500
+2.7%over 8 months16 December 1999
£182,500
Median price across the last 5 sales in AL6 0JJ: £300,000 (2022–2005).
Nearby sales in AL6 0JJ
Everything we know about 2 Grass Warren, 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

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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.