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21 South Mill Road, Southampton, SO15 4JW

3 planning records
Property type
Semi-detached
Habitable rooms
5
From EPC
Floor area
94 m²
1012 sq ft
Energy rating
D
Score 59
Council tax
Band C
Tenure
Owner Occupied
Overview

About 21 South Mill Road

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

21 South Mill Road is a semi-detached house in Southampton (SO15 4JW). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (July 2014) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 4 certificates since September 2013. Between certificates, hot-water efficiency dropped from Very Good to Average. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from July 2014, so improvements made since then won't be reflected.

Today's modelled estimate of £312,000 sits 67.7% above the 2013 sale of £186,000. On a £-per-square-foot basis, the last sale (£184/sq ft) was about 17.9% below the postcode norm. 3 planning records sit against the property, 1 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 94 m² it's 19.2% larger than the typical home in the postcode (79 m² median across 17 EPCs). Last changed hands 12 years ago, in December 2013.

Before you decide

Everything you need to know about 21 South Mill Road

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
Energy

Energy performance

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

Recommended upgrades on file would lift this property by multiple EPC bands.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 06 Jul 2024

Current Certificate(1 of 4)
Jul 2014

EPC Rating

A
B
C
D
D59
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
4.4 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Apr 2014from Sept 2013
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
SolarMain System

Hot water system changed

Windows
Mostly DoubleFull Double

Windows upgraded, improving insulation

Renewable Energy
NoneSolar PV

Solar PV panels (15 kWp) installed

Jul 2014from Jul 2014
Hot Water
Main SystemMain (No Stat)

Hot water system changed

Roof Insulation
UninsulatedPartial

Roof insulation improved

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Early 20th centurySemi-Detached HouseEPC D

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £595 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 South Mill Road, Southampton, SO15 4JW, sourced from the PlanIt planning register.

21 South Mill Road has 3 separate extension applications on the council record.

3 applications on record at 21 South Mill Road, Southampton, SO15 4JW

3decisions3extensions24documents2nearby
  1. May 2019
    ExtensionFull
    Outcome in report

    Extension: Part single, part two storey · Side and rear of property

    Erection of a two storey side and part two storey part single storey rear extension.

    Documents
    6 docs on file
    Reference
    19/00502/FUL
    Full record in report
  2. More recent applications — locked
  3. ExtensionDecision
  4. ExtensionDecision

Unlock 21 South Mill Road, Southampton, SO15 4JW's full planning history

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

  • Every decision — granted, refused or withdrawn (3 on record)
  • All 3 applications on this property in full, plus 2 notable nearby
  • The 24 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.

21 South Mill Road valuation sits well clear of the typical sold price in this postcode.

Current estimate

£312,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2013)

£186,000

Recorded with HM Land Registry.

Sales timeline

  1. 23 December 2013Most recent

    £186,000

Median price across the last 5 sales in SO15 4JW: £310,000 (2025–2020).

On the street

Versus other South Mill Road homes

Four headline reads against 17 similar houses on this street, drawn from the latest EPC and Land Registry data.

21 South Mill Road is notably below the street on co₂ emissions.

Price per m²

£1,979

Street avg £2,892

Strongly below

Floor Area

94 m²

Street avg 82 m²

Strongly above

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

4.4 t/year

Street avg 3.3 t/year

Strongly below
Before you decide

Everything you need to know about 21 South Mill Road

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£308k

1 Boundary Close

SO15 4PE

2 bed
£306k

1 Meadowmead Avenue

SO15 4LW

3 bed
£321k

10 Ashdene

SO15 4GP

3 bed1 bath
£299k

1 Clifton Road

SO15 4GU

1 bed
£299k

10 Brookside Avenue

SO15 4HZ

3 bed
£297k

1 Avro Close

SO15 4AE

£338k

1 Westbury Road

SO15 4JS

£351k

1 Mill Road

SO15 4JB

3 bed
Area

The neighbourhood at a glance

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

Rail-style transport is unusually close for this postcode.

Crime

12/mo

Rising year-on-year across the wider district.

Nearest stop

0.1 km

South Mill Road — bus stop.

Closest school

0.4 km

Tanners Brook Primary School. 28 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 SO15 4JW from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SO15 4JW

Daytime· 07:00 – 23:00

53.1dB

Low
Night-time road noise heatmap for SO15 4JW

Night-time· 23:00 – 07:00

44.8dB

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 21 South Mill Road, Southampton, SO15 4JW. Each answer is also embedded as structured data for search engines.