23 Dulwich Avenue, Basildon, SS15 6FU
About 23 Dulwich Avenue
23 Dulwich Avenue is a three-bedroom semi-detached house in Basildon (SS15 6FU). It has a recorded floor area of 108 m² (around 1163 sq ft) and construction records dating it to 2012-2021. The latest certificate (August 2025) shows a C (score 79), near the top of the C band. Earlier certificates rated it B (April 2015); the latest reading is one band lower. Between certificates, roof efficiency went from Good to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average. The recommended improvements would push it to B (score 83).
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £438,000 is 48.5% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£254/sq ft) was about 23.5% below the postcode norm. 11 years since the last transfer (May 2015).
What this property has
Inside
- Bedrooms3
- Bathrooms1
- EnsuiteYes
Outside
- Private gardenRear
Building
- RefurbishedYes
Energy performance
23 Dulwich Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
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Planning history
23 Dulwich 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
£438,000
Modelled from EPC, postcode comparables.
£294,995
Recorded with HM Land Registry.
Sales timeline
4 May 2015Most recent
£294,995
Median price across the last 5 sales in SS15 6FU: £420,000 (2025–2023).
Nearby sales in SS15 6FU
Versus other Dulwich Avenue homes
23 Dulwich Avenue is notably below the street on epc rating.
Price per m²
£2,731
Street avg £3,814
Floor Area
108 m²
Street avg 102 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.2 t/year
Street avg 1.6 t/year
Similar properties nearby
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The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Home Mead — bus stop.
Closest school
0.8 km
Millhouse Primary School. 12 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
53.3dB

Night-time· 23:00 – 07:00
44.6dB







