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20 Carshalton Avenue, Portsmouth, PO6 2JT

3 sales on record
Property type
Semi-detached
Bedrooms
3
Bathrooms
2
Floor area
164 m²
1765 sq ft
Energy rating
E
Score 43
Council tax
Band D
Tenure
Owner Occupied
Overview

About 20 Carshalton Avenue

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

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.

Before you offer

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

Signs of HMO activity in the areaLarger development activity nearby
£14.99
Trusted by UK homebuyers

Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
  • Bathrooms2
  • LoftYes

Outside

  • GarageYes

Building

  • Previously extendedYes
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

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

A
B
C
D
E
E43
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Good
CO2 Emissions
10.0 t/year
Occupancy
Owner Occupied
Planning

Planning history

Applications and permits filed against 20 Carshalton Avenue, Portsmouth, PO6 2JT, sourced from the PlanIt planning register.

20 Carshalton Avenue has no planning applications on record.

Notable planning nearby

8applications of note in the surrounding area

Before you offer

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
£14.99

30-day money-back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

20 Carshalton Avenue has more than doubled in price since the earliest registered sale in 1998.

Current estimate

£482,000

Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 18 years.

See how we calculated this
Last sold (2016)

£360,000

Growth on file: 5.4% per year over 18 years.

Sales timeline

  1. 19 June 2016Most recent

    £360,000

    +94.6%over 14 years
  2. 12 September 2001

    £185,000

    +34.1%over 3 years
  3. 23 April 1998

    £138,000

Median price across the last 5 sales in PO6 2JT: £364,995 (2021–2017).

Before you offer

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
£14.99
Trusted by UK homebuyers
Preview of the full property report
On the street

Versus other Carshalton Avenue homes

Four headline reads against 15 similar houses on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 20 Carshalton Avenue runs well behind the street norm.

Price per m²

£2,195

Street avg £3,187

Strongly below

Floor Area

164 m²

Street avg 96 m²

Strongly above

Habitable Rooms

6 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

10.0 t/year

Street avg 4.5 t/year

Strongly below
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Portsmouth district page.

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around PO6 2JT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PO6 2JT

Daytime· 07:00 – 23:00

51.9dB

Low
Night-time road noise heatmap for PO6 2JT

Night-time· 23:00 – 07:00

41.4dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 20 Carshalton Avenue, Portsmouth, PO6 2JT. Each answer is also embedded as structured data for search engines.