21 Derry Avenue, Plymouth, PL4 6BH
About 21 Derry Avenue
21 Derry Avenue is a four-bedroom mid-terrace house in Plymouth (PL4 6BH). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (March 2025) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in March 2010 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump.
Last sale on file: £210,000 in March 2019. Across the public record there are 4 sales, relatively high churn for a single property. Across 1999–2019, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £260,000 is 23.8% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£170/sq ft) was about 48.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms4
- Bathrooms3
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
21 Derry Avenue has no planning applications on record.
But the area is active
72 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Derry Avenue has more than quadrupled in price since its earliest registered sale in 1999.
£260,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 20 years.
£210,000
Growth on file: 8.5% per year over 20 years.
Sales timeline
31 March 2019Most recent
£210,000
+10.1%over 8 years28 July 2010
£190,750
+12.9%over 4 years28 July 2005
£169,000
+302.9%over 6 years22 July 1999
£41,950
Median price across the last 5 sales in PL4 6BH: £250,000 (2024–2023).
Versus other Derry Avenue homes
On habitable rooms, 21 Derry Avenue runs well behind the street norm.
Price per m²
£1,826
Street avg £1,597
Floor Area
115 m²
Street avg 128 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.5 t/year
Street avg 4.9 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Welbeck Avenue — bus stop.
Closest school
0.3 km
Plymouth High School for Girls. 41 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
54.0dB

Night-time· 23:00 – 07:00
43.1dB







