18 Shelldale Avenue, Portslade, Brighton, BN41 1LH
About 18 Shelldale Avenue
18 Shelldale Avenue is a semi-detached house in Portslade, Brighton, Brighton (BN41 1LH). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (January 2022) shows a C (score 71). The recommended improvements would push it to B (score 82).
At 135 m² the property is well over the postcode median (74 m² across 22 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). One planning record on file: an extension approved in 2022. Past consents include an extension, a garage conversion, a porch and HMO conversion, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£324/sq ft) was about 55.1% above the typical sold price in the postcode. Sold June 2022 for £471,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 18 Shelldale Avenue
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
Planning history
- Sept 2022Garage ConversionFullIn report
Change of use from 4no bedroom dwellinghouse (C3) to 8no bedroom large house in multiple occupation (sui generis) including erection of a front porch, conversion of garage to habitable space and revised fenestration.
- Agent
- Mr Joseph Pearson
ExtensionPorchHMO- Documents
- 15 docs on file
- Reference
- BH2022/02134
We flagged 2 things worth checking at 18 Shelldale Avenue
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
Latest sale on 18 Shelldale Avenue was the highest on Land Registry record across the postcode.
£507,000
Modelled from EPC, postcode comparables.
£471,500
Recorded with HM Land Registry.
Sales timeline
28 June 2022Most recent
£471,500
Median price across the last 5 sales in BN41 1LH: £358,000 (2025–2021).
Nearby sales in BN41 1LH
13 Shelldale Avenue, Portslade, Brighton, BN41 1LH
Sold Jan 2025
£400,25028 Shelldale Avenue, Portslade, Brighton, BN41 1LH
Sold Nov 2024
£305,00011 Shelldale Avenue, Portslade, Brighton, BN41 1LH
Sold Nov 2023
£350,00021 Shelldale Avenue, Portslade, Brighton, BN41 1LH
Sold Oct 2023
£358,00024 Shelldale Avenue, Portslade, Brighton, BN41 1LH
Sold Mar 2021
£315,000
Everything we know about 18 Shelldale Avenue, 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 Shelldale Avenue homes
18 Shelldale Avenue outperforms the street on floor area by a wide margin.
Price per m²
£3,493
Street avg £2,947
Floor Area
135 m²
Street avg 77 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 3.4 t/year
Similar properties nearby
1 Portslade Mews, Portslade
BN41 1AX
1 Norway Street, Portslade
BN41 1GN
1 Rothbury Mews, Franklin Road, Portslade
BN41 1AU
1 Gardner Road, Portslade
BN41 1PN
1 Links Road, Portslade
BN41 1XH
1 Gardener Street, Portslade
BN41 1SX
1 Brambledean Road, Portslade
BN41 1LP
1 Garden Close, Portslade
BN41 1XL
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
Shelldale Road — bus stop.
Closest school
0.4 km
St Mary's Catholic Primary School. 21 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
54.1dB

Night-time· 23:00 – 07:00
44.9dB