4 Harwood Close, Tewin, Welwyn, AL6 0LF
About 4 Harwood Close
4 Harwood Close is a four-bedroom mid-terrace house in Tewin, Welwyn, Welwyn (AL6 0LF). It has a recorded floor area of 138 m² (around 1486 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (December 2009) shows a C (score 75), near the top of the C band. The latest certificate is from December 2009, so improvements made since then won't be reflected.
Held since March 2010 — that's 16 years off the open market, well above the local norm. Across 1998–2010, sale prices on this property compounded at 10.6% per year. Today's modelled estimate of £604,000 sits 61.1% above the 2010 sale of £375,000. One planning record on file: an extension approved in 2005. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 4 Harwood Close
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
- Bedrooms4
Energy performance
4 Harwood Close's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 01 Dec 2019
EPC Rating
Planning history
4 Harwood Close has an approved single-storey rear extension on the planning record.
- Mar 2005ExtensionFullIn report
Extension: Single storey · Rear of property
single storey rear extension
- Documents
- 1 doc on file
- Reference
- 3/05/0108/FP
We flagged 1 thing worth checking at 4 Harwood Close
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
4 Harwood Close has more than tripled in price since its earliest registered sale in 1998.
£604,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.6% per year over 11 years.
£375,000
Growth on file: 10.6% per year over 11 years.
Sales timeline
31 March 2010Most recent
£375,000
+29.3%over 5 years5 August 2004
£290,000
+141.7%over 5 years7 December 1998
£120,000
Median price across the last 5 sales in AL6 0LF: £738,000 (2025–2020).
Nearby sales in AL6 0LF
26 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Oct 2025
£845,0007 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Oct 2023
£730,0008 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Sept 2023
£738,00016 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Aug 2022
£821,60015 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Aug 2020
£425,000
Everything we know about 4 Harwood Close, 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 Harwood Close homes
On price per m², 4 Harwood Close runs well behind the street norm.
Price per m²
£2,715
Street avg £4,392
Floor Area
138 m²
Street avg 122 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 4.1 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Rose and Crown PH — bus stop.
Closest school
0.3 km
Tewin Cowper Church of England Voluntary Aided Primary School. 8 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.