55 Carmarthen Avenue, Drayton, Portsmouth, PO6 2AG
About 55 Carmarthen Avenue
55 Carmarthen Avenue is a six-bedroom detached house in Drayton, Portsmouth, Portsmouth (PO6 2AG). It has a recorded floor area of 264 m² (around 2842 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (June 2017) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump.
At 264 m² the property is well over the postcode median (156 m² across 18 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. 2 planning records sit against the property, 0 approved, 0 refused. Across 1998–2019, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £866,000 is 12.5% above the 2019 sale price. Sold June 2019 for £770,000.
Know exactly what you're buying at 55 Carmarthen 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
What this property has
Inside
- Bedrooms6
Energy performance
55 Carmarthen Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
- Nov 2018ExtensionFullIn report
Extension: Single storey · Rear of property
Part conversion of dwellinghouse to form additional dwelling to include construction of single storey rear extension and installation of hipped roof with associated landscaping and cycle and refuse storage
- Agent
- FAO Mr Chris Flint
- Documents
- 11 docs on file
- Reference
- 18/01680/FUL
- Mar 2018PorchFullIn report
Extension: Single storey · Rear of property
Construction of single storey rear extension and metal canopy structure, addition of pitched roof to existing flat roof side extension, addition of a front porch and elevational alterations to front elevation
- Agent
- FAO Mr James Potter
Extension- Documents
- 6 docs on file
- Reference
- 17/02128/HOU
We flagged 2 things worth checking at 55 Carmarthen 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
55 Carmarthen Avenue has more than tripled in price since its earliest registered sale in 1998.
£866,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.9% per year over 20 years.
£770,000
Growth on file: 5.9% per year over 20 years.
Sales timeline
12 June 2019Most recent
£770,000
+5.5%over 1 year13 September 2017
£730,000
+207.4%over 18 years23 December 1998
£237,500
Median price across the last 5 sales in PO6 2AG: £563,000 (2024–2018).
Nearby sales in PO6 2AG
59 Carmarthen Avenue, Drayton, Portsmouth, PO6 2AG
Sold Nov 2024
£660,00015 Carmarthen Avenue, Drayton, Portsmouth, PO6 2AG
Sold Dec 2022
£628,00023 Carmarthen Avenue, Drayton, Portsmouth, PO6 2AG
Sold Sept 2021
£563,0001a, Carmarthen Avenue, Drayton, Portsmouth, PO6 2AG
Sold Nov 2018
£465,00077 Carmarthen Avenue, Drayton, Portsmouth, PO6 2AG
Sold Nov 2018
£842,000
Everything we know about 55 Carmarthen 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 Carmarthen Avenue homes
On floor area, 55 Carmarthen Avenue stands well clear of the street.
Price per m²
£2,917
Street avg £3,283
Floor Area
264 m²
Street avg 171 m²
Habitable Rooms
10 rooms
Street avg 7 rooms
CO₂ Emissions
15.0 t/year
Street avg 7.0 t/year
Similar properties nearby
1 Bernard Avenue, Drayton
PO6 2JP
1 East Court, Cosham
PO6 2NX
1 Edison Spur, Drayton
PO6 2NW
1 Carmarthen Avenue, Drayton
PO6 2AG
1 Brecon Avenue
PO6 2AN
1 Carshalton Avenue
PO6 2JT
1 Court Lane, Drayton
PO6 2LG
1 Court Mead, Drayton
PO6 2LT
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Court Lane — bus stop.
Closest school
0.6 km
Court Lane Infant Academy. 22 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
53.0dB

Night-time· 23:00 – 07:00
43.6dB