9 Mondrian Mews, Serpentine Road, Southsea, PO5 3LY
About 9 Mondrian Mews
9 Mondrian Mews is a two-bedroom end-of-terrace house in Southsea (PO5 3LY). It has a recorded floor area of 67 m² (around 721 sq ft) and construction records dating it to 2012-2021. The latest certificate (July 2025) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since July 2015. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average.
At 67 m² it sits well below the postcode median (113 m² across 8 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £300,000 is 25% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£333/sq ft) was about 17.3% below the postcode norm. Last changed hands 11 years ago, in October 2015.
Know exactly what you're buying at 9 Mondrian Mews
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
- Bedrooms2
Outside
- Parkingallocated
Energy performance
9 Mondrian Mews's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Solar PV panels (15 kWp) installed
Planning history
9 Mondrian Mews has no planning applications on record.
Notable planning nearby
15applications of note in the surrounding area
We flagged 2 things worth checking at 9 Mondrian Mews
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
9 Mondrian Mews valuation runs notably under the typical sold price in this postcode.
£300,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
Sales timeline
21 October 2015Most recent
£240,000
Median price across the last 5 sales in PO5 3LY: £550,000 (2021–2015).
Nearby sales in PO5 3LY
3 Cambridge Mews, Serpentine Road, Southsea, PO5 3LY
Sold Jan 2021
£542,0002 Cambridge Mews, Serpentine Road, Southsea, PO5 3LY
Sold Jan 2021
£550,0001 Cambridge Mews, Serpentine Road, Southsea, PO5 3LY
Sold Dec 2020
£600,0004 Cambridge Mews, Serpentine Road, Southsea, PO5 3LY
Sold Dec 2020
£560,0008 Mondrian Mews, Serpentine Road, Southsea, PO5 3LY
Sold Sept 2015
£238,000
Everything we know about 9 Mondrian Mews, 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 Serpentine Road homes
9 Mondrian Mews outperforms the street on co₂ emissions by a wide margin.
Price per m²
£3,582
Street avg £3,879
Floor Area
67 m²
Street avg 103 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
1.4 t/year
Street avg 2.9 t/year
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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
Southsea Shops — bus stop.
Closest school
0.7 km
Cottage Grove Primary School and Nursery. 26 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
53.1dB
Night-time· 23:00 – 07:00
42.5dB