4 Downside, Brighton, BN1 5EQ
About 4 Downside
4 Downside is a three-bedroom semi-detached house in Brighton (BN1 5EQ). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (May 2021) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2010. Between certificates, lighting went from Poor to Good; while wall efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 2-band jump. Other recorded features include a conservatory.
Across 2001–2011, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £512,000 sits 70.7% above the 2011 sale of £300,000. On a £-per-square-foot basis, the last sale (£282/sq ft) was about 21.3% below the postcode norm. One planning record on file: a loft conversion approved in 2023. Past consents include a loft conversion, meaningful when judging how the property has evolved. On the market in August 2011 and unlisted since — roughly 15 years.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenYes
- ParkingOff street
Everything you need to know about 4 Downside
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
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Planning history
1 application on record at 4 Downside, Brighton, BN1 5EQ
- Feb 2023Loft ConversionOutlineOutcome in report
Certificate of lawfulness for proposed loft conversion incorporating hip to gable roof extension, front rooflights, side window and rear dormer.
- Documents
- 7 docs on file
- Reference
- BH2022/03388
Unlock 4 Downside, Brighton, BN1 5EQ's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 9 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
4 Downside valuation sits well clear of the typical sold price in this postcode.
£512,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 10 years.
£300,000
Growth on file: 5.6% per year over 10 years.
Sales timeline
16 August 2011Most recent
£300,000
+73.9%over 10 years11 July 2001
£172,500
Median price across the last 5 sales in BN1 5EQ: £550,000 (2025–2020).
Versus other Downside homes
On habitable rooms, 4 Downside runs well behind the street norm.
Price per m²
£3,030
Street avg £4,339
Floor Area
99 m²
Street avg 117 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
4.4 t/year
Street avg 5.2 t/year
Everything you need to know about 4 Downside
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
21/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Top of Copse Hill — bus stop.
Closest school
0.4 km
Westdene Primary School. 24 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
51.6dB

Night-time· 23:00 – 07:00
42.0dB






