10 Harwood Close, Tewin, Welwyn, AL6 0LF
About 10 Harwood Close
10 Harwood Close is a three-bedroom end-of-terrace house in Tewin, Welwyn, Welwyn (AL6 0LF). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (June 2019) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump.
It hasn't traded since August 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2001–2008, sale prices on this property compounded at 10.2% per year. Today's modelled estimate of £566,000 sits 81.4% above the 2008 sale of £312,000. One planning record on file: an extension approved in 2006. Past consents include an extension and a porch, meaningful when judging how the property has evolved. At 106 m² it's 17.2% smaller than the typical home in the postcode (128 m² median across 19 EPCs).
Know exactly what you're buying at 10 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
- Bedrooms3
- Bathrooms2
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageYes
Building
- Heating systemGas
- ConciergeYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
10 Harwood Close has an approved extension on the planning record.
- Apr 2006
We flagged 1 thing worth checking at 10 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
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Sales history & valuation
Sale price has at least doubled since 2001.
£566,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.2% per year over 7 years.
£312,000
Growth on file: 10.2% per year over 7 years.
Sales timeline
7 August 2008Most recent
£312,000
-1.7%over 10 months27 September 2007
£317,500
+109.6%over 6 years23 February 2001
£151,500
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 10 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
Years Held for 10 Harwood Close runs comfortably ahead of the street norm.
Price per m²
£2,943
Street avg £4,378
Floor Area
106 m²
Street avg 124 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
4.3 t/year
Street avg 4.1 t/year
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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
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.