Tewin Water Farm House, Tewin Water, Welwyn, AL6 0AB
About Tewin Water Farm House
Tewin Water Farm House is a detached house in Welwyn (AL6 0AB). It has a recorded floor area of 306 m² (around 3294 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (May 2023) shows a C (score 72). The recommended improvements would push it to B (score 82).
Untraded for 26 years, with the last transfer in September 2000. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 306 m² the property is well over the postcode median (224 m² across 5 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £2,219,000 sits 257.9% above the 2000 sale of £620,000. On a £-per-square-foot basis, the last sale (£188/sq ft) was about 62.5% below the postcode norm. One planning record on file: an extension approved in 2010. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at Tewin Water Farm House
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
Tewin Water Farm House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Tewin Water Farm House has an approved single-storey side extension on the planning record.
- Aug 2010ExtensionFullIn report
Extension: Single storey · Side of property
Proposed single storey side extension
- Documents
- 6 docs on file
- Reference
- 3/10/1265/FP
We flagged 1 thing worth checking at Tewin Water Farm House
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
Tewin Water Farm House's estimated value is more than triple its earliest registered sale price (2000).
£2,219,000
Modelled from EPC, postcode comparables.
£620,000
Recorded with HM Land Registry.
Sales timeline
27 September 2000Most recent
£620,000
Median price across the last 3 sales in AL6 0AB: £1,520,000 (2024–1996).
Nearby sales in AL6 0AB
Everything we know about Tewin Water Farm House, 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 Tewin Water homes
On floor area, Tewin Water Farm House stands well clear of the street.
EPC Rating
72 (C)
Street avg 64 (D)
Floor Area
306 m²
Street avg 249 m²
CO₂ Emissions
8.9 t/year
Street avg 7.9 t/year
Habitable Rooms
10 rooms
Street avg 9 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km
Robin Mead — bus stop.
Closest school
0.5 km
Waterside Academy. 16 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.