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21 Dewar Street, Southwark, London, SE15 4JP

Solar panels3 sales on record1 planning record
Property type
Mid terrace
Bedrooms
3
Bathroom
1
Floor area
99 m²
1066 sq ft
Energy rating
C
Score 69
Council tax
Band D
Tenure
Owner Occupied
Overview

About 21 Dewar Street

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

21 Dewar Street is a three-bedroom mid-terrace house in Southwark, London, London (SE15 4JP). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (February 2022) shows a C (score 69), just inside the C band. When first surveyed in December 2010 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 86). The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Period features are noted in the property record. The home occupies a cul-de-sac position.

At 99 m² the property is well over the postcode median (56 m² across 31 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2024. Past consents include an extension, meaningful when judging how the property has evolved. Across 2003–2022, sale prices on this property compounded at 7.6% per year. On a £-per-square-foot basis, the last sale (£901/sq ft) was about 199.6% above the typical sold price in the postcode. Sold July 2022 for £960,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you offer

Know exactly what you're buying at 21 Dewar Street

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

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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
  • Bathrooms1

Outside

  • Cul-de-sacYes

Building

  • Solar panelsYes
  • Period featuresYes
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Feb 2022

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.2 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Feb 2022from Dec 2010
EPC improved fromE49toC69
Hot Water
Very GoodGood

Hot water efficiency decreased

Windows
SingleFull Double

Single glazing replaced with double or better glazing

Roof Insulation
UninsulatedInsulated

Roof insulation improved

Low Energy Lighting
0%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 21 Dewar Street, Southwark, London, SE15 4JP, sourced from the PlanIt planning register.
  1. Jun 2024
    ExtensionFull
    In report

    Extension: Side of property

    Erection of a side return extension and a rear dormer.

    Agent
    Resi Design Ltd
    Documents
    20 docs on file
    Reference
    24/AP/1306
    View planning record
Before you offer

We flagged 1 thing worth checking at 21 Dewar Street

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.

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Price

Sales history & valuation

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

Price for 21 Dewar Street has grown more than fourfold since the 2003 starting point.

Current estimate

£959,000

Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 19 years.

See how we calculated this
Last sold (2022)

£960,000

Growth on file: 7.6% per year over 19 years.

Sales timeline

  1. 17 July 2022Most recent

    £960,000

    +113.3%over 11 years
  2. 26 April 2011

    £450,000

    +89.1%over 7 years
  3. 23 June 2003

    £238,000

Median price across the last 5 sales in SE15 4JP: £350,000 (2025–2021).

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Everything we know about 21 Dewar Street, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

  • Larger development activity nearby
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On the street

Versus other Dewar Street homes

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

21 Dewar Street outperforms the street on price per m² by a wide margin.

Price per m²

£9,697

Street avg £7,058

Strongly above

Floor Area

99 m²

Street avg 96 m²

On par

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

3.2 t/year

Street avg 4.1 t/year

Above
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

11/mo

Rising year-on-year across the wider district.

Nearest stop

0.1 km

Peckham Rye /East Dulwich Road — bus stop.

Closest school

0.0 km

Bellenden Primary School. 81 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 SE15 4JP from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SE15 4JP

Daytime· 07:00 – 23:00

54.6dB

Low
Night-time road noise heatmap for SE15 4JP

Night-time· 23:00 – 07:00

44.3dB

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

Everything within walking distance

Schools, transport stops and scenic spots near this property — 111 points of interest in total.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Dewar Street, Southwark, London, SE15 4JP. Each answer is also embedded as structured data for search engines.