23b, Hillside Avenue, Southampton, SO18 1LD
About 23b
23b is a semi-detached house in Southampton (SO18 1LD). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (December 2022) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2017. Between certificates, window efficiency went from Average to Good. The recommended improvements would push it to C (score 75). At 53 m² this is the 3rd smallest of 20 units on EPC record in the building, where floor areas span 22–165 m². The building's EPC ratings span E to C across 20 units on file.
It hasn't traded since March 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £164,000 sits 118.8% above the 2002 sale of £74,950. On a £-per-square-foot basis, the last sale (£131/sq ft) was about 27.1% below the postcode norm. At 53 m² it sits well below the postcode median (102 m² across 19 EPCs), making it one of the more compact homes locally.
Everything you need to know about 23b
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Planning history
23b has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 23b
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
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Sales history & valuation
£164,000
Modelled from EPC, postcode comparables.
£74,950
Recorded with HM Land Registry.
Sales timeline
20 March 2002Most recent
£74,950
Median price across the last 5 sales in SO18 1LD: £200,000 (2025–2023).
Nearby sales in SO18 1LD
35a, Hillside Avenue, Southampton, SO18 1LD
Sold Jan 2025
£200,00013 Hillside Avenue, Southampton, SO18 1LD
Sold Oct 2024
£200,00035 Hillside Avenue, Southampton, SO18 1LD
Sold Dec 2023
£148,5003 Hillside Avenue, Southampton, SO18 1LD
Sold Nov 2023
£310,00023a, Hillside Avenue, Southampton, SO18 1LD
Sold Apr 2023
£212,000
Versus other Hillside Avenue homes
Price per m² for 23b lags the street by a wide margin.
Price per m²
£1,414
Street avg £2,773
Floor Area
53 m²
Street avg 53 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.1 t/year
Street avg 2.7 t/year
Everything you need to know about 23b
The true value, the hidden risks and the full sale history, in one report.
30-day money-back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Bond Road — bus stop.
Closest school
0.5 km
Bitterne Park Primary & Nursery School - Part of the Learning Federation Partnership of Schools. 32 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
50.2dB
Night-time· 23:00 – 07:00
40.9dB