9 Harwood Close, Tewin, Welwyn, AL6 0LF
About 9 Harwood Close
9 Harwood Close is a four-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0LF). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (July 2014) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2014. Between certificates, hot-water efficiency went from Average to Good; while roof efficiency dropped from Good to Average and lighting dropped from Good to Very Poor. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from July 2014, so improvements made since then won't be reflected.
One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Across 2001–2015, sale prices on this property compounded at 5.7% per year. Today's modelled estimate of £706,000 is 30.7% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£392/sq ft) was about 44.6% above the typical sold price in the postcode. Last changed hands 11 years ago, in July 2015.
Know exactly what you're buying at 9 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
- Bathrooms1
- EnsuiteYes
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This certificate is over 10 years old and is no longer valid.Expired 21 Jul 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Low energy lighting percentage decreased
Planning history
- Dec 2018ExtensionFullIn report
Extension: Single storey · Rear of property
Demolition of single storey rear extension. Construction of single storey rear extension.
- Documents
- 11 docs on file
- Reference
- 3/18/2352/HH
We flagged 1 thing worth checking at 9 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
Sale price has at least doubled since 2001.
£706,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.7% per year over 14 years.
£540,000
Growth on file: 5.7% per year over 14 years.
Sales timeline
27 July 2015Most recent
£540,000
+122.7%over 14 years23 February 2001
£242,500
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 9 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
EPC Rating for 9 Harwood Close lags the street by a wide margin.
Price per m²
£4,219
Street avg £4,298
Floor Area
128 m²
Street avg 123 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.7 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.