5 Dewars Close, Welwyn, AL6 9RR
About 5 Dewars Close
5 Dewars Close is a five-bedroom detached house in Welwyn (AL6 9RR). It has a recorded floor area of 196 m² (around 2110 sq ft), construction records dating it to 1967-1975 and council tax band G. The latest certificate (January 2022) shows a C (score 73). When first surveyed in September 2011 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Very Poor to Good and window efficiency went from Poor to Good. Other recorded features include notable views. The home occupies a cul-de-sac position.
One planning record on file: an extension approved in 2013. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Across 2012–2023, sale prices on this property compounded at 6% per year. Sold October 2023 for £995,000.
Know exactly what you're buying at 5 Dewars Close
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms5
- Bathrooms5
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- Private gardenSouth-facing
- GarageYes
- Notable viewsYes
- Cul-de-sacYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded to triple glazing
Cavity wall insulation installed
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Planning history
- Mar 2013PorchFullIn report
Extension: Single storey · Side and rear of property
Erection of ground floor porch, first floor side extension and ground floor rear extension and alterations to fenestration and erection of garage
Extension- Documents
- 10 docs on file
- Reference
- N6/2013/0060/FP
What's in 5 Dewars Close, Welwyn, AL6 9RR's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
5 Dewars Close valuation sits well clear of the typical sold price in this postcode.
£1,069,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 12 years.
£995,000
Growth on file: 6.0% per year over 12 years.
Sales timeline
26 October 2023Most recent
£995,000
+99.0%over 11 years9 January 2012
£500,000
Median price across the last 4 sales in AL6 9RR: £622,500 (2023–2001).
Everything we know about 5 Dewars Close, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Carleton Rise — bus stop.
Closest school
0.9 km
Welwyn St Mary's Church of England Voluntary Aided Primary School. 9 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.