Flat 3, 21 Elms Avenue, Eastbourne, BN21 3DN
About Flat 3
Flat 3 is a mid-terrace house in Eastbourne (BN21 3DN). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (August 2019) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2009. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Good. The recommended improvements would push it to C (score 79).
At 51 m² it sits well below the postcode median (82 m² across 37 EPCs), making it one of the more compact homes locally.
Energy performance
EPC Rating
Certificate validity
Valid until 12 August 2029
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 3 has no planning applications on record.
But the area is active
16 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat 3 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£133,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in BN21 3DN: £440,000 (2025–2022).
Nearby sales in BN21 3DN
12 Elms Avenue, Eastbourne, BN21 3DN
Sold Nov 2025
£425,000Ground Floor Flat, 17 Elms Avenue, Eastbourne, BN21 3DN
Sold Jun 2025
£178,00014 Elms Avenue, Eastbourne, BN21 3DN
Sold Sept 2024
£475,00033 Elms Avenue, Eastbourne, BN21 3DN
Sold Apr 2023
£440,0008 Elms Avenue, Eastbourne, BN21 3DN
Sold Aug 2022
£580,000
Versus other Elms Avenue homes
Flat 3 outperforms the street on epc rating by a wide margin.
EPC Rating
68 (D)
Street avg 56 (D)
Floor Area
51 m²
Street avg 57 m²
CO₂ Emissions
2.1 t/year
Street avg 3.2 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Similar properties nearby
10a, Flat 2, Upper Avenue
BN21 3XH
1 2, Flat 1 8, Queens Gardens
BN21 3EF
12 14, Flat 5, Cavendish Place
BN21 3EJ
1 2, Flat 2, Queens Gardens
BN21 3EF
1 2, Flat 4, Queens Gardens
BN21 3EF
1 2, Flat 6, Queens Gardens
BN21 3EF
1 2, Flat 8, Queens Gardens
BN21 3EF
12 14, Flat 4, Cavendish Place
BN21 3EJ
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
484/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cavendish Place — bus stop.
Closest school
0.5 km
Bourne Primary School. 13 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
54.2dB

Night-time· 23:00 – 07:00
44.7dB







