Harbour House, Flat 12, 121 Gardner Road, Portslade, Brighton, BN41 1PN
About Harbour House
Harbour House is a semi-detached house in Portslade, Brighton, Brighton (BN41 1PN). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (August 2020) shows a C (score 76), near the top of the C band. Earlier certificates rated it B (March 2009); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. At 46 m² this is the 7th smallest of 23 units on EPC record in Harbour House, where floor areas span 32–91 m². The building's EPC ratings span D to B across 23 units on file.
Today's modelled estimate of £202,000 is 94.6% below the 2021 sale of £3,750,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£7,574/sq ft) was about 2666.6% above the typical sold price in the postcode. At 46 m² it's 24.6% smaller than the typical home in the postcode (61 m² median across 65 EPCs). Sold September 2021 for £3,750,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Harbour House
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
Harbour House's carbon output is low for the local stock.
EPC Rating
Planning history
Harbour House has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 2 things worth checking at Harbour House
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 Harbour House was the highest on Land Registry record across the postcode.
£202,000
Modelled from EPC, postcode comparables.
£3,750,000
Recorded with HM Land Registry.
Sales timeline
27 September 2021Most recent
£3,750,000
Median price across the last 5 sales in BN41 1PN: £300,000 (2024–2020).
Nearby sales in BN41 1PN
65 Gardner Road, Portslade, Brighton, BN41 1PN
Sold Sept 2024
£257,500Harbour House, Flat 22, 121 Gardner Road, Portslade, Brighton, BN41 1PN
Sold Sept 2021
£580,000Harbour House, Flat 23, 121 Gardner Road, Portslade, Brighton, BN41 1PN
Sold Sept 2021
£580,000107b, Gardner Road, Portslade, Brighton, BN41 1PN
Sold Feb 2020
£75,000117 Gardner Road, Portslade, Brighton, BN41 1PN
Sold Jan 2020
£300,000
Everything we know about Harbour House, 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 Gardner Road homes
On price per m², Harbour House stands well clear of the street.
Price per m²
£81,522
Street avg £4,176
Floor Area
46 m²
Street avg 54 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.3 t/year
Street avg 1.7 t/year
Similar properties nearby
1 St Richards Flats, Church Road, Portslade
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BN41 1GJ
10 St Richards Flats, Church Road, Portslade
BN41 1LU
11 12, Flat 4, Carlton Terrace, Portslade
BN41 1XF
11 12, Flat 5, Carlton Terrace, Portslade
BN41 1XF
1a, Flat 1, St Aubyns Road, Portslade
BN41 1AB
11 12, Flat 3, Carlton Terrace, Portslade
BN41 1XF
2 St Richards Flats, Church Road, Portslade
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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
The Albion Inn — bus stop.
Closest school
0.6 km
Eastbrook Primary Academy. 16 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
51.4dB

Night-time· 23:00 – 07:00
42.5dB