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23 Calton Avenue, Southwark, London, SE21 7DE

5 sales on record1 planning record
Property type
Mid terrace
Habitable rooms
5
From EPC
Floor area
123 m²
1324 sq ft
Energy rating
E
Score 52
Council tax
Band C
Tenure
Owner Occupied
Overview

About 23 Calton Avenue

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

23 Calton Avenue is a mid-terrace house in Southwark, London, London (SE21 7DE). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (March 2019) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 81), a 3-band jump.

Across 1996–2024, sale prices on this property compounded at 7.9% per year. Today's modelled estimate of £1,325,000 is 10.5% below the 2024 sale of £1,480,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£1,118/sq ft) was about 142.7% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. One planning record on file: a loft conversion approved in 2010. Past consents include a loft conversion, meaningful when judging how the property has evolved. Last sale on file: £1,480,000 in October 2024.

Before you decide

Everything you need to know about 23 Calton Avenue

The true value, the hidden risks and the full sale history, in one report.

Pick your report · every report is £14.99

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

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

23 Calton Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.

EPC Rating

A
B
C
D
E
E52
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
6.4 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC EPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls

Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,645 · Includes VAT

Planning

Planning history

Applications and permits filed against 23 Calton Avenue, Southwark, London, SE21 7DE, sourced from the PlanIt planning register.

1 application on record at 23 Calton Avenue, Southwark, London, SE21 7DE

1decisions1extensions11documents
  1. Aug 2010
    Loft ConversionFull
    Outcome in report

    Loft conversion including new dormer window, new heritage rooflight and new window to gable. New rooflights to back section of house. Reconfigured window to rear elevation of house.

    Documents
    11 docs on file
    Reference
    10/AP/1908
    Full record in report

Unlock 23 Calton Avenue, Southwark, London, SE21 7DE's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full
  • The 11 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - 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.

Price for 23 Calton Avenue has grown more than fourfold since the 1996 starting point.

Current estimate

£1,325,000

Modelled from EPC, postcode comparables and a sale-price growth of 7.9% per year over 28 years.

See how we calculated this
Last sold (2024)

£1,480,000

Growth on file: 7.9% per year over 28 years.

Sales timeline

  1. 17 October 2024Most recent

    £1,480,000

    +32.7%over 5 years
  2. 25 July 2019

    £1,115,000

    +109.2%over 12 years
  3. 2 February 2007

    £533,000

    +113.2%over 8 years
  4. 21 May 1998

    £250,000

    +45.3%over 1 year
  5. 18 July 1996

    £172,000

Median price across the last 5 sales in SE21 7DE: £1,295,000 (2025–2019).

On the street

Versus other Calton Avenue homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 23 Calton Avenue lags the street by a wide margin.

Price per m²

£12,033

Street avg £9,076

Above

Floor Area

123 m²

Street avg 151 m²

On par

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

6.4 t/year

Street avg 4.8 t/year

Below
Before you decide

Everything you need to know about 23 Calton Avenue

The true value, the hidden risks and the full sale history, in one report.

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Area

The neighbourhood at a glance

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

Rail-style transport is unusually close for this postcode.

Crime

6/mo

Rising year-on-year across the wider district.

Nearest stop

0.2 km

Dulwich Village — bus stop.

Closest school

0.2 km

Dulwich Village Church of England Infants' School. 68 schools nearby.

Go deeper on the local area

A Local Area 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 SE21 7DE from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SE21 7DE

Daytime· 07:00 – 23:00

52.3dB

Low
Night-time road noise heatmap for SE21 7DE

Night-time· 23:00 – 07:00

42.0dB

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 23 Calton Avenue, Southwark, London, SE21 7DE. Each answer is also embedded as structured data for search engines.