13 Harwood Close, Tewin, Welwyn, AL6 0LF
About 13 Harwood Close
13 Harwood Close is a three-bedroom mid-terrace house in Tewin, Welwyn, Welwyn (AL6 0LF). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (April 2012) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 87), a 2-band jump. The latest certificate is from April 2012, so improvements made since then won't be reflected.
Across 2012–2012, sale prices on this property compounded at 25% per year. Today's modelled estimate of £418,000 sits 67.2% above the 2012 sale of £250,000. At 83 m² it sits well below the postcode median (128 m² across 19 EPCs), making it one of the more compact homes locally. One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Last sold in December 2012, so it's been off the market for around 13 years.
Know exactly what you're buying at 13 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
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Apr 2022
EPC Rating
Planning history
Council records include a part-single-part-two-storey rear extension at 13 Harwood Close.
- May 2018ExtensionFullIn report
Extension: Part single, part two storey · Rear of property
Part double storey and part single storey rear extension.
- Documents
- 7 docs on file
- Reference
- 3/18/0616/HH
We flagged 2 things worth checking at 13 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
- Recent ownership pattern worth a look
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Sales history & valuation
13 Harwood Close changed hands twice within eighteen months — unusual for the area.
£418,000
Modelled from EPC, postcode comparables and a sale-price growth of 25.0% per year over 1 year.
£250,000
Growth on file: 25.0% per year over 1 year.
Sales timeline
17 December 2012Most recent
£250,000
+25.0%over 6 months14 June 2012
£200,000
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 13 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
- Recent ownership pattern worth a look

Versus other Harwood Close homes
EPC Rating for 13 Harwood Close lags the street by a wide margin.
Price per m²
£3,012
Street avg £4,373
Floor Area
83 m²
Street avg 125 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
3.8 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.