Top Flat, 5 Gardener Street, Portslade, Brighton, BN41 1SX
About Top Flat
Top Flat is an end-of-terrace house in Portslade, Brighton, Brighton (BN41 1SX). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to before 1900. The latest certificate (March 2019) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2009. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Poor to Average and lighting went from Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 77).
At 51 m² it sits well below the postcode median (79 m² across 38 EPCs), making it one of the more compact homes locally. One planning record on file: new windows approved in 2010. Past consents include new windows, meaningful when judging how the property has evolved.
Know exactly what you're buying at Top Flat
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Windows upgraded, improving insulation
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
- Aug 2010RenovationFullIn report
Replacement of timber windows and door with uPVC
New Windows- Documents
- 11 docs on file
- Reference
- BH2010/01912
We flagged 2 things worth checking at Top Flat
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
Top Flat has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£249,000
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 BN41 1SX: £387,500 (2025–2022).
Nearby sales in BN41 1SX
17 Gardener Street, Portslade, Brighton, BN41 1SX
Sold Jun 2025
£387,50059 Gardener Street, Portslade, Brighton, BN41 1SX
Sold Mar 2024
£465,00057 Gardener Street, Portslade, Brighton, BN41 1SX
Sold Jan 2024
£466,5006 Gardener Street, Portslade, Brighton, BN41 1SX
Sold Jun 2022
£330,00034 Gardener Street, Portslade, Brighton, BN41 1SX
Sold Jun 2022
£357,000
Everything we know about Top Flat, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Gardener Street homes
Top Flat is notably below the street on epc rating.
EPC Rating
63 (D)
Street avg 70 (C)
Floor Area
51 m²
Street avg 48 m²
CO₂ Emissions
2.7 t/year
Street avg 1.9 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Fishersgate Station — bus stop.
Closest school
0.4 km
Brackenbury Primary School. 20 schools nearby.
Go deeper on the local area
The full 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
43.6dB