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12a, Windsor Road, Cosham, Portsmouth, PO6 2TG

3 sales on record

Estimated value

£148,000

  • Since the 2014 sale (£75,000)+97%
  • Against PO6 2TG's recent median (£312,500)-53%

Newest record on this page: February 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Floor Ground
Habitable rooms
2
From EPC
Floor area
63 m²
678 sq ft
Energy rating
D
Score 64
Tenure
Private Rental
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£148,000

  • Against its 2014 sale (£75,000)+97%
  • Against PO6 2TG's recent median (£312,500)-53%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 12a is modelled from its 63 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in PO6 2TG. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    63 m² from the EPC lodged in February 2018

  • Sales of this home

    3 sales recorded, the latest in 2014

  • Recent sales in PO6 2TG

    5 sales, median £312,500 (2026–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: February 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

12a has more than doubled in price since the earliest registered sale in 1997.

Sales timeline

  1. 22 January 2014Most recent

    £75,000

    -10.2%over 3 years

  2. 23 August 2010

    £83,500

    +128.8%over 12 years

  3. 25 September 1997

    £36,500

Median price across the last 5 sales in PO6 2TG: £312,500 (2026–2022).

Risks

What this page doesn't show

2 potential issues have already been flagged for 12a, Windsor Road, Cosham, Portsmouth, PO6 2TG. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn report
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About 12a

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

12a is a semi-detached house in Cosham, Portsmouth, Portsmouth (PO6 2TG). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to 1900-1929. The latest certificate (February 2018) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in February 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Average to Very Good. The recommended improvements would push it to C (score 74). At 63 m² this is the 2nd smallest of 47 units on EPC record in the building, where floor areas span 61–175 m². The building's EPC ratings span G to C across 47 units on file.

Across 1997–2014, sale prices on this property compounded at 4.5% per year. Today's modelled estimate of £148,000 sits 97.3% above the 2014 sale of £75,000. On a £-per-square-foot basis, the last sale (£111/sq ft) was about 32.6% below the postcode norm. Last sold in January 2014, so it's been off the market for around 13 years. At 63 m² it's 27.6% smaller than the typical home in the postcode (87 m² median across 46 EPCs).

Before you decide

Everything you need to know about 12a

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

Signs of HMO activity in the areaLarger development activity nearby

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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.
Current Certificate(1 of 2)
Feb 2018

EPC Rating

A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.9 t/year
Occupancy
Rented

Certificate validity

Valid until 26 February 2028

1 year remaining

Property Improvements

Changes detected from historical EPC data

Feb 2018from Feb 2010
EPC improved fromE54toD64
Heating Controls
Prog + TRVsProg + Stat

Heating controls upgraded for better temperature management

Windows
Partial DoubleFull Double

Windows upgraded, improving insulation

Walls
Very PoorPoor

Wall insulation improved

Low Energy Lighting
40%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 12a, Windsor Road, Cosham, Portsmouth, PO6 2TG, sourced from the PlanIt planning register.

12a has no planning applications on record.

8

But the area is active

8 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

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.
Full Portsmouth report

Rail-style transport is unusually close for this postcode.

Crime

260/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Cosham Rail Station — railway station.

Closest school

0.5 km

Highbury Primary School. 26 schools nearby.

Nearest schools

  • Highbury Primary SchoolPrimary529m
  • Court Lane Infant AcademyPrimary549m
  • Court Lane Junior AcademyPrimary549m
  • City of Portsmouth College16 plus737m

Nearest stops

  • Cosham Rail StationRailway station126m
  • Cosham Rail StationRailway station141m
  • High StreetBus stop165m
  • Highbury BuildingsBus stop194m

Most reported crime locally

  • Violence & Sexual Offences1,949 reports47%
  • Shoplifting436 reports10%
  • Anti-social Behaviour381 reports9%
  • Public Order369 reports9%

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 PO6 2TG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PO6 2TG

Daytime· 07:00 – 23:00

56.6dB

Moderate
Night-time road noise heatmap for PO6 2TG

Night-time· 23:00 – 07:00

46.9dB

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

Get a survey for this property

Level 3 Building Survey

Victorian-eraGround Floor FlatEPC DPre-1919 buildLow flood risk

Because the property was built before 1919, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£124k

1 Eliza Mackenzie Court, Lindisfarne Close

PO6 2SB

£203k

1 Highbury Buildings, Portsmouth Road, Cosham

PO6 2SN

£288k

1 Faraday Road, Drayton

PO6 2LE

£298k

1 Elgin Road

PO6 2SU

£303k

1 Edgerly Gardens

PO6 2SX

£305k

1 Franklin Close

PO6 2NF

£316k

1 Donaldson Road

PO6 2SZ

3 bed1 bath
£316k

1 Gofton Avenue, Drayton

PO6 2NG

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 12a is modelled from its 63 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in PO6 2TG. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 3 sales are recorded for 12a. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 12a was lodged in February 2018 at band D and is valid until February 2028. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 12a. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 16 months, which places each incident at an approximate point. The 26 schools and 30 stops listed are measured in a straight line from PO6 2TG, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 12a, Windsor Road, Cosham, Portsmouth, PO6 2TG. Each answer is also embedded as structured data for search engines.

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