20 Carshalton Avenue, Portsmouth, PO6 2JT
About 20 Carshalton Avenue
20 Carshalton Avenue is a three-bedroom semi-detached house in Portsmouth (PO6 2JT). It has a recorded floor area of 164 m² (around 1765 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (March 2016) shows an E (score 43), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 69), a 2-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include a loft. Records show the property has been extended at some point in its history.
At 164 m² the property is well over the postcode median (95 m² across 15 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). Across 1998–2016, sale prices on this property compounded at 5.4% per year. Today's modelled estimate of £482,000 is 33.9% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£204/sq ft) was about 27.8% below the postcode norm. Last sold in June 2016, so it's been off the market for around 10 years.
Know exactly what you're buying at 20 Carshalton 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
- LoftYes
Outside
- GarageYes
Building
- Previously extendedYes
Energy performance
20 Carshalton Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 01 Mar 2026
EPC Rating
Planning history
20 Carshalton Avenue has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 20 Carshalton 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
20 Carshalton Avenue has more than doubled in price since the earliest registered sale in 1998.
£482,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 18 years.
£360,000
Growth on file: 5.4% per year over 18 years.
Sales timeline
19 June 2016Most recent
£360,000
+94.6%over 14 years12 September 2001
£185,000
+34.1%over 3 years23 April 1998
£138,000
Median price across the last 5 sales in PO6 2JT: £364,995 (2021–2017).
Nearby sales in PO6 2JT
1 Carshalton Avenue, Portsmouth, PO6 2JT
Sold Jul 2021
£465,0001d, Carshalton Avenue, Portsmouth, PO6 2JT
Sold Jun 2021
£364,9957 Carshalton Avenue, Portsmouth, PO6 2JT
Sold Jul 2019
£350,00019 Carshalton Avenue, Portsmouth, PO6 2JT
Sold Jun 2017
£475,00026 Carshalton Avenue, Portsmouth, PO6 2JT
Sold Apr 2017
£482,200
Everything we know about 20 Carshalton 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 Carshalton Avenue homes
On epc rating, 20 Carshalton Avenue runs well behind the street norm.
Price per m²
£2,195
Street avg £3,187
Floor Area
164 m²
Street avg 96 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
10.0 t/year
Street avg 4.5 t/year
Similar properties nearby
1 Carshalton Avenue
PO6 2JT
1 Beaconsfield Avenue
PO6 2PS
1 Dovercourt Road
PO6 2RZ
1 Cranborne Road, Drayton
PO6 2BG
1 Chalkridge Road, Drayton
PO6 2BE
1 Braemar Avenue, Drayton
PO6 2NB
1 Donaldson Road
PO6 2SZ
1 Carmarthen Avenue, Drayton
PO6 2AG
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Carshalton Avenue — bus stop.
Closest school
0.4 km
Springfield School. 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
51.9dB

Night-time· 23:00 – 07:00
41.4dB