17 Britannia Road, Southsea, PO5 1SN
About 17 Britannia Road
17 Britannia Road is a four-bedroom semi-detached house in Southsea (PO5 1SN). It has a recorded floor area of 129 m² (around 1389 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (May 2022) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in November 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Very Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.
Most recent transfer: September 2022 at £445,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 129 m² it's 24% larger than the typical home in the postcode (104 m² median across 27 EPCs). Across 2004–2022, sale prices on this property compounded at 5.2% per year. On a £-per-square-foot basis, the last sale (£320/sq ft) was about 76.9% above the typical sold price in the postcode.
Know exactly what you're buying at 17 Britannia Road
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms1
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
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
17 Britannia Road has an approved single-storey rear extension on the planning record.
- Apr 2023OutlineIn report
Lawful development certificate for the construction of dormer to rear roofslope, with associated alterations to rear fenestration and Juliet balcony
- Agent
- MC Architectural Design Ltd
- Documents
- 5 docs on file
- Reference
- 23/00294/CPL
- Aug 2020ExtensionOutlineIn report
Extension: Single storey · Rear of property
Construction of single-storey rear extension that comes out a maximum of 5.8m beyond the rear wall of the original house with a maximum height of 3.03m and a maximum height of 2.7m to the eaves.
- Agent
- FAO Mr Pete Longyear
- Documents
- 7 docs on file
- Reference
- 20/00068/GPDC
We flagged 1 thing worth checking at 17 Britannia Road
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
30-day money-back guarantee
Sales history & valuation
Latest sale on 17 Britannia Road was the highest on Land Registry record across the postcode.
£443,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.2% per year over 18 years.
£445,000
Growth on file: 5.2% per year over 18 years.
Sales timeline
29 September 2022Most recent
£445,000
+64.8%over 2 years2 August 2020
£270,000
+11.6%over 12 years21 July 2008
£242,000
+34.4%over 3 years5 November 2004
£180,000
Median price across the last 5 sales in PO5 1SN: £335,000 (2024–2022).
Nearby sales in PO5 1SN
Britannia House, Flat 2, 2 Britannia Road, Southsea, PO5 1SN
Sold May 2024
£135,0006 Britannia Road, Southsea, PO5 1SN
Sold Dec 2023
£255,00019 Britannia Road, Southsea, PO5 1SN
Sold Mar 2023
£400,00036 Britannia Road, Southsea, PO5 1SN
Sold Aug 2022
£335,00021 Britannia Road, Southsea, PO5 1SN
Sold Apr 2022
£408,000
Everything we know about 17 Britannia Road, 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

Versus other Britannia Road homes
On habitable rooms, 17 Britannia Road runs well behind the street norm.
Price per m²
£3,450
Street avg £2,303
Floor Area
129 m²
Street avg 109 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
4.5 t/year
Street avg 4.6 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
11/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Montgomerie Road — bus stop.
Closest school
0.3 km
Priory School. 35 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
53.8dB

Night-time· 23:00 – 07:00
42.8dB