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About 21 Byron Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Byron Avenue is a three-bedroom detached house in Coulsdon (CR5 2JS). It has a recorded floor area of 112 m² (around 1201 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (July 2009) shows an F (score 38), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 59), a 2-band jump. The latest certificate is from July 2009, so improvements made since then won't be reflected.
It hasn't traded since November 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 112 m² it's 18.5% smaller than the typical home in the postcode (137 m² median across 13 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £594,000 sits 69.2% above the 2009 sale of £351,000.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms3
- Dining roomYes
- CloakroomYes
Outside
- Private garden
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
21 Byron Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 17 Jul 2019
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
Current estimate
See how we calculated this£594,000
Modelled from EPC, postcode comparables.
Last sold (2009)
£351,000
Recorded with HM Land Registry.
Sales timeline
Versus other Byron Avenue homes
Four headline reads against 13 similar houses on this street, drawn from the latest EPC and Land Registry data.
Years Held for 21 Byron Avenue runs comfortably ahead of the street norm.
Price per m²
£3,145
Street avg £4,457
Floor Area
112 m²
Street avg 131 m²
Habitable Rooms
5 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Coulsdon district page.
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Cearn Way — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around CR5 2JS from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
50.9dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 49 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Byron Avenue, Coulsdon, CR5 2JS. Each answer is also embedded as structured data for search engines.