9 Brecon Avenue, Portsmouth, PO6 2AN
About 9 Brecon Avenue
9 Brecon Avenue is a three-bedroom detached house in Portsmouth (PO6 2AN). It has a recorded floor area of 165 m² (around 1776 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (April 2022) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in January 2018 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 79). Other recorded features include a conservatory. The home occupies a cul-de-sac position.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 165 m² it's 29.9% larger than the typical home in the postcode (127 m² median across 17 EPCs). Across 2020–2022, sale prices on this property compounded at 26.1% per year. On a £-per-square-foot basis, the last sale (£445/sq ft) was about 68.7% above the typical sold price in the postcode. Sold November 2022 for £790,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 9 Brecon 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
- Bedrooms3
- Bathrooms1
- Dining roomYes
- Utility roomYes
- ConservatoryYes
Outside
- DrivewayYes
- Cul-de-sacYes
Building
- Heating systemGas
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Roof insulation improved
More low energy lighting installed
Planning history
- Oct 2021ExtensionFullIn report
Construction of single storey rear extension (following removal of existing extension) and double storey side extension
- Documents
- 9 docs on file
- Reference
- 21/01005/HOU
- Jun 2021Loft ConversionFullIn report
Extension: Side of property
Construction of a two storey side extension, single storey rear extension and conversion of roofspace to habitbale use to include a rear dormer, 2 x juliette balconies, 3 x front rooflights and conversion of roof from hip to gable end
Extension- Documents
- 16 docs on file
- Reference
- 20/01063/FUL
We flagged 2 things worth checking at 9 Brecon 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
Latest sale on 9 Brecon Avenue was the highest on Land Registry record across the postcode.
£773,000
Modelled from EPC, postcode comparables and a sale-price growth of 26.1% per year over 2 years.
£790,000
Growth on file: 26.1% per year over 2 years.
Sales timeline
11 November 2022Most recent
£790,000
+72.2%over 2 years8 July 2020
£458,750
Median price across the last 5 sales in PO6 2AN: £548,000 (2025–2021).
Nearby sales in PO6 2AN
Everything we know about 9 Brecon 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 Brecon Avenue homes
9 Brecon Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£4,788
Street avg £3,136
Floor Area
165 m²
Street avg 135 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
5.5 t/year
Street avg 6.3 t/year
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
The George — bus stop.
Closest school
0.8 km
Court Lane Infant Academy. 21 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
52.6dB

Night-time· 23:00 – 07:00
43.4dB