21 Brecon Avenue, Portsmouth, PO6 2AN
About 21 Brecon Avenue
21 Brecon Avenue is a three-bedroom semi-detached house in Portsmouth (PO6 2AN). It has a recorded floor area of 119 m² (around 1281 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (March 2022) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since December 2011. Between certificates, window efficiency went from Poor to Average and lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 80), a 2-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). Last sold in October 2015, so it's been off the market for around 11 years. Across 2007–2015, sale prices on this property compounded at 1.3% per year. Today's modelled estimate of £480,000 is 31.9% above the 2015 sale price.
Know exactly what you're buying at 21 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
- Bathrooms2
- Dining roomYes
- CloakroomYes
Outside
- GarageYes
Building
- RefurbishedYes
Energy performance
21 Brecon Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Window efficiency improved
More low energy lighting installed
Planning history
21 Brecon Avenue has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 21 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
30-day money-back guarantee
Sales history & valuation
21 Brecon Avenue valuation sits well clear of the typical sold price in this postcode.
£480,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.3% per year over 8 years.
£364,000
Growth on file: 1.3% per year over 8 years.
Sales timeline
30 October 2015Most recent
£364,000
+10.3%over 7 years18 December 2007
£330,000
Median price across the last 5 sales in PO6 2AN: £610,000 (2025–2022).
Nearby sales in PO6 2AN
Everything we know about 21 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
21 Brecon Avenue is notably below the street on habitable rooms.
Price per m²
£3,059
Street avg £3,259
Floor Area
119 m²
Street avg 138 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
7.0 t/year
Street avg 6.2 t/year
Similar properties nearby
1 Carshalton Avenue
PO6 2JT
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PO6 2RZ
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1 Chalkridge Road, Drayton
PO6 2BE
1 Braemar Avenue, Drayton
PO6 2NB
1 Donaldson Road
PO6 2SZ
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PO6 2QL
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