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Idsworth House, Flat 8, Crasswell Street, Portsmouth, PO1 1HR

2 planning records
Property type
End terrace
Floor 02
Habitable rooms
3
From EPC
Floor area
66 m²
710 sq ft
Energy rating
C
Score 73
Council tax
Band A
Tenure
Social Rental
Overview

About Idsworth House

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

Idsworth House is an end-of-terrace house in Portsmouth (PO1 1HR). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (December 2025) shows a C (score 73). When first surveyed in February 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.

At 66 m² the property is well over the postcode median (50 m² across 6 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 0 approved, 0 refused.

Before you decide

Everything you need to know about Idsworth House

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

Signs of HMO activity in the areaLarger development activity nearby

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.

The EPC has just been inspected, so the rating reflects current condition.

Current Certificate(1 of 3)
Dec 2025

EPC Rating

A
B
C
C73
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
1.8 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Apr 2023from Feb 2013
Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Low Energy Lighting
43%100%

More low energy lighting installed

Dec 2025from Apr 2023
EPC improved fromD66toC73
Walls
AverageGood

Wall insulation improved

Roof Insulation
UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Low Energy Lighting
100%75%

Low energy lighting percentage decreased

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Mid 20th century2nd Floor MaisonetteEPC C

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 £495 · Includes VAT

Planning

Planning history

Applications and permits filed against Idsworth House, Flat 8, Crasswell Street, Portsmouth, PO1 1HR, sourced from the PlanIt planning register.

2 applications on record at Idsworth House, Flat 8, Crasswell Street, Portsmouth, PO1 1HR

2decisions11documents14nearby
  1. Aug 2004
    Renovation
    Outcome in report

    RETENTION OF 90CM DIAMETER SATELLITE DISH TO REAR ELEVATION

    Documents
    4 docs on file
    Reference
    A*38828/AA
    Full record in report
  2. More recent applications — locked
  3. FullDecision

Unlock Idsworth House, Flat 8, Crasswell Street, Portsmouth, PO1 1HR's full planning history

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

  • Every decision — granted, refused or withdrawn (2 on record)
  • All 2 applications on this property in full, plus 14 notable nearby
  • 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.

Idsworth House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£135,000

Modelled from EPC, postcode comparables.

See how we calculated this

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 2 sales in PO1 1HR: £91,250 (2023–2020).

On the street

Versus other Crasswell Street homes

Four headline reads against 6 similar flats on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for Idsworth House lags the street by a wide margin.

EPC Rating

73 (C)

Street avg 75 (C)

Below

Floor Area

66 m²

Street avg 50 m²

Above

CO₂ Emissions

1.8 t/year

Street avg 1.4 t/year

Below

Habitable Rooms

3 rooms

Street avg 2 rooms

Above
Before you decide

Everything you need to know about Idsworth House

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

Signs of HMO activity in the areaLarger development activity nearby

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.
£134k

1 Mirage Apartments, Kingswell Street

PO1 1BX

Flat
£137k

2 Mirage Apartments, Kingswell Street

PO1 1BX

Flat
£133k

18a, Flat 9, Edinburgh Road

PO1 1DE

Flat
£132k

76a, Flat 1, Garnier Street

PO1 1PD

Flat
£139k

76a, Flat 2, Garnier Street

PO1 1PD

Flat
£128k

Aggie Weston House, Flat 16, 22 Edinburgh Road

PO1 1DH

Flat
£127k

Aggie Weston House, Flat 11, 22 Edinburgh Road

PO1 1DH

Flat
£127k

Aggie Weston House, Flat 12, 22 Edinburgh Road

PO1 1DH

Flat
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

9/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Canberra House — bus stop.

Closest school

0.2 km

St Edmund's Catholic School. 40 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 PO1 1HR from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PO1 1HR

Daytime· 07:00 – 23:00

56.4dB

Moderate
Night-time road noise heatmap for PO1 1HR

Night-time· 23:00 – 07:00

46.0dB

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 Idsworth House, Flat 8, Crasswell Street, Portsmouth, PO1 1HR. Each answer is also embedded as structured data for search engines.