20 Greenfield Avenue, Watford, WD19 5DN
About 20 Greenfield Avenue
20 Greenfield Avenue is a semi-detached house in Watford (WD19 5DN). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (July 2016) shows an E (score 51), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2009. Between certificates, lighting went from Very Poor to Average; while wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 80), a 2-band jump. The latest certificate is from July 2016, so improvements made since then won't be reflected.
It lags the bulk of the postcode on energy efficiency (less efficient than 82% of similar EPCs). Across 2009–2016, sale prices on this property compounded at 9.2% per year. On a £-per-square-foot basis, the last sale (£643/sq ft) was about 67.9% above the typical sold price in the postcode. Last changed hands 10 years ago, in August 2016.
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This certificate is over 10 years old and is no longer valid.Expired 05 Jul 2026
EPC Rating
Certificate validity
Expired on 5 July 2026
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
20 Greenfield Avenue has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
20 Greenfield Avenue valuation sits well clear of the typical sold price in this postcode.
£576,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.2% per year over 7 years.
£540,000
Growth on file: 9.2% per year over 7 years.
Sales timeline
31 August 2016Most recent
£540,000
+82.4%over 6 years28 October 2009
£296,000
Median price across the last 5 sales in WD19 5DN: £540,000 (2026–2020).
Nearby sales in WD19 5DN
Versus other Greenfield Avenue homes
On epc rating, 20 Greenfield Avenue runs well behind the street norm.
Price per m²
£6,923
Street avg £5,616
Floor Area
78 m²
Street avg 93 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
5.1 t/year
Street avg 3.5 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
179/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Upper Hitch — bus stop.
Closest school
0.3 km
St Meryl School. 25 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
49.0dB

Night-time· 23:00 – 07:00
40.3dB







