7 Harwood Close, Tewin, Welwyn, AL6 0LF
About 7 Harwood Close
7 Harwood Close is a four-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0LF). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (April 2022) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in June 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, window efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would lift it to A (score 97), a 3-band jump. The home occupies a cul-de-sac position.
Most recent transfer: October 2023 at £730,000. Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2023, sale prices on this property compounded at 6.1% per year. On a £-per-square-foot basis, the last sale (£502/sq ft) was about 90% above the typical sold price in the postcode.
Know exactly what you're buying at 7 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
- Bathrooms2
- Dining roomYes
Outside
- Private gardenWest-facing
- ParkingOff street
- Cul-de-sacYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Window efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Hot water system upgraded
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Apr 2021ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension.
- Documents
- 8 docs on file
- Reference
- 3/21/0477/HH
- Feb 2021DemolitionOutlineIn report
Extension: Single storey · Rear of property
Demolition of conservatory and erection of single storey rear extension: Depth: 4.73 metres, Maximum height: 3.33 metres, Eaves height: 3.20 metres.
Extension- Documents
- 5 docs on file
- Reference
- 3/21/0199/PNHH
We flagged 1 thing worth checking at 7 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
Price for 7 Harwood Close has grown more than fourfold since the 1999 starting point.
£745,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 24 years.
£730,000
Growth on file: 6.1% per year over 24 years.
Sales timeline
31 October 2023Most recent
£730,000
+15.9%over 4 years8 March 2019
£630,000
+43.2%over 7 years7 April 2011
£440,000
+151.4%over 11 years18 August 1999
£175,000
Median price across the last 5 sales in AL6 0LF: £745,000 (2025–2017).
Nearby sales in AL6 0LF
26 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Oct 2025
£845,0008 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
£425,00025 Harwood Close, Tewin, Welwyn, AL6 0LF
Sold Aug 2017
£745,000
Everything we know about 7 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
7 Harwood Close is notably below the street on years held.
Price per m²
£5,407
Street avg £4,224
Floor Area
135 m²
Street avg 123 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
5.2 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.