21 Middle Down, Aldenham, Watford, WD25 8BW
About 21 Middle Down
21 Middle Down is a three-bedroom detached house in Aldenham, Watford, Watford (WD25 8BW). It has a recorded floor area of 170 m² (around 1830 sq ft), construction records dating it to 2007-2011 and council tax band G. The latest certificate (September 2024) shows a C (score 80), near the top of the C band. The recommended improvements would push it to B (score 87).
It hasn't traded since April 2007, a hold of 19 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. At 170 m² the property is well over the postcode median (128 m² across 14 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £1,230,000 is 36.7% above the 2007 sale price.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Utility roomYes
- CloakroomYes
- FireplaceYes
Outside
- Private gardenRear
- GarageIntegral
Energy performance
EPC Rating
Certificate validity
Valid until 23 September 2034
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Planning history
21 Middle Down has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£1,230,000
Modelled from EPC, postcode comparables.
£900,000
Recorded with HM Land Registry.
Sales timeline
29 April 2007Most recent
£900,000
Median price across the last 5 sales in WD25 8BW: £980,000 (2025–2014).
Nearby sales in WD25 8BW
20 Middle Down, Aldenham, Watford, WD25 8BW
Sold Feb 2025
£1,225,00011 Middle Down, Aldenham, Watford, WD25 8BW
Sold May 2024
£850,0005 Middle Down, Aldenham, Watford, WD25 8BW
Sold Aug 2022
£1,450,0006 Middle Down, Aldenham, Watford, WD25 8BW
Sold Nov 2016
£980,0002 Middle Down, Aldenham, Watford, WD25 8BW
Sold Dec 2014
£700,000
Versus other Middle Down homes
EPC Rating for 21 Middle Down runs comfortably ahead of the street norm.
Price per m²
£5,294
Street avg £5,477
Floor Area
170 m²
Street avg 143 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.5 t/year
Similar properties nearby
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1 Middle Down, Aldenham
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1 Holmes Cottages, Back Lane, Letchmore Heath
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1 Church Farm Cottages, Church Lane, Aldenham
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
214/mo
Falling year-on-year across the wider district.
Nearest stop
0.8 km
St John's Church — bus stop.
Closest school
1.4 km
Fair Field Junior School. 11 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
44.4dB

Night-time· 23:00 – 07:00
39.1dB







