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101b, High Street, Cosham, Portsmouth, PO6 3AZ

Property type
Detached
Floor 01
Habitable rooms
4
From EPC
Floor area
81 m²
872 sq ft
Energy rating
D
Score 58
Tenure
Private Rental
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Overview

About 101b

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

101b is a detached house in Cosham, Portsmouth, Portsmouth (PO6 3AZ). It has a recorded floor area of 81 m² (around 872 sq ft) and construction records dating it to 1930-1949. The latest certificate (December 2024) shows a D (score 58), a step below the typical UK home. When first surveyed in May 2021 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Average to Good and main heating went from Very Poor to Average; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 71). Main heating runs on electricity. At 81 m² this is the 12th smallest of 14 units on EPC record in the building, where floor areas span 49–84 m². The building's EPC ratings span E to C across 14 units on file.

Today's modelled estimate of £187,000 is 16.9% below the 2021 sale of £225,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£258/sq ft) was about 44.6% above the typical sold price in the postcode. At 81 m² the property is well over the postcode median (55 m² across 13 EPCs), placing it in the larger end of the local stock. Sold September 2021 for £225,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about 101b

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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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 4)
Dec 2024

EPC Rating

A
B
C
D
D58
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Very Poor
Windows
Good
CO2 Emissions
4.8 t/year
Occupancy
Rented

Certificate validity

Valid until 21 December 2034

8 years remaining

Property Improvements

Changes detected from historical EPC data

Oct 2022from May 2021
EPC improved fromF36toE48
Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Jul 2023from Oct 2022
EPC improved fromE48toD57
Heating System
Gas BoilerStorage Heaters

Heating system changed

Hot Water
Immersion (Off-Peak)Instantaneous

Hot water system changed

Windows
AverageGood

Window efficiency improved

Dec 2024from Jul 2023
Roof
GoodVery Good

Roof insulation improved

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Early 20th century1st Floor FlatEPC DNo mains gas

Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Planning

Planning history

Applications and permits filed against 101b, High Street, Cosham, Portsmouth, PO6 3AZ, sourced from the PlanIt planning register.

101b has no planning applications on record.

13

But the area is active

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

Price

Sales history & valuation

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

Latest sale on 101b was the highest on Land Registry record across the postcode.

Current estimate

£187,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2021)

£225,000

Recorded with HM Land Registry.

Sales timeline

  1. 16 September 2021Most recent

    £225,000

Median price across the last 5 sales in PO6 3AZ: £120,000 (2025–2019).

On the street

Versus other High Street homes

Four headline reads against 13 similar flats on this street, drawn from the latest EPC and Land Registry data.

On floor area, 101b stands well clear of the street.

Price per m²

£2,778

Street avg £2,364

Above

Floor Area

81 m²

Street avg 60 m²

Strongly above

Habitable Rooms

4 rooms

Street avg 3 rooms

Strongly above

CO₂ Emissions

4.8 t/year

Street avg 3.1 t/year

Strongly below

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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.

Rail-style transport is unusually close for this postcode.

Crime

260/mo

Steady year-on-year across the wider district.

Nearest stop

0.0 km

High Street — bus stop.

Closest school

0.5 km

Court Lane Infant Academy. 25 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 PO6 3AZ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PO6 3AZ

Daytime· 07:00 – 23:00

55.5dB

Moderate
Night-time road noise heatmap for PO6 3AZ

Night-time· 23:00 – 07:00

46.1dB

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 101b, High Street, Cosham, Portsmouth, PO6 3AZ. Each answer is also embedded as structured data for search engines.