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Westmark House, Flat 1, 436 Havant Road, Farlington, Portsmouth, PO6 1AB

Estimated value

£141,000

  • Since the 2004 sale (£101,000)+40%
  • Against PO6 1AB's recent median (£380,000)-63%

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

Learn about this valuation
Property type
Detached
Floor Ground
Bedroom
1
Bathroom
1
Floor area
38 m²
409 sq ft
Energy rating
D
Score 58
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

£141,000

  • Against its 2004 sale (£101,000)+40%
  • Against PO6 1AB's recent median (£380,000)-63%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Westmark House is modelled from its 38 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in PO6 1AB. 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

    38 m² from the EPC lodged in July 2020

  • Sales of this home

    1 sale recorded, the latest in 2004

  • Recent sales in PO6 1AB

    5 sales, median £380,000 (2026–2024)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: January 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.

Westmark House valuation runs notably under the typical sold price in this postcode.

Sales timeline

  1. 14 September 2004Most recent

    £101,000

Median price across the last 5 sales in PO6 1AB: £380,000 (2026–2024).

Risks

What this page doesn't show

1 potential issue has already been flagged for Westmark House, Flat 1, 436 Havant Road, Farlington, Portsmouth, PO6 1AB. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn 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 Westmark House

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

Westmark House is a one-bedroom detached house in Farlington, Portsmouth, Portsmouth (PO6 1AB). It has a recorded floor area of 38 m² (around 409 sq ft) and construction records dating it to 1900-1929. At 38 m² this is the smallest unit on EPC record across Westmark House (38–47 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (58 versus a best of 76). The latest certificate (July 2020) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 6 certificates since November 2008. Between certificates, window efficiency went from Very Poor to Average; while lighting dropped from Good to Average. The recommended improvements would push it to C (score 73).

Held since September 2004 — that's 22 years off the open market, well above the local norm. At 38 m² it sits well below the postcode median (83 m² across 23 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £141,000 is 39.6% above the 2004 sale price.

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

  • Bedrooms1
  • Bathrooms1

Outside

  • Private gardenYes
  • ParkingYes

Building

  • Heating systemGas
  • RefurbishedYes
Before you decide

Everything you need to know about Westmark House

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

Signs of HMO activity in the area

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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 6)
Jul 2020

EPC Rating

A
B
C
D
D58
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.5 t/year
Occupancy
Rented

Certificate validity

Valid until 6 July 2030

3 years remaining

Property Improvements

Changes detected from historical EPC data

Oct 2009from Nov 2008
Wall Insulation
UninsulatedPartial Insulation

Wall insulation upgraded

Low Energy Lighting
60%20%

Low energy lighting percentage decreased

Ventilation
NaturalExtract

Mechanical ventilation installed

May 2010from Oct 2009
Low Energy Lighting
20%80%

More low energy lighting installed

Ventilation
ExtractNatural

Ventilation system changed

Sept 2015from Jun 2010
Wall Insulation
UninsulatedPartial Insulation

Wall insulation upgraded

Low Energy Lighting
80%0%

Low energy lighting percentage decreased

Jul 2020from Sept 2015
Windows
SingleFull Double

Single glazing replaced with double or better glazing

Low Energy Lighting
0%40%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against Westmark House, Flat 1, 436 Havant Road, Farlington, Portsmouth, PO6 1AB, sourced from the PlanIt planning register.

Westmark House has no planning applications on record.

4

But the area is active

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

On the street

Versus other Havant Road homes

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

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

Price per m²

£2,658

Street avg £2,844

Below

Floor Area

38 m²

Street avg 41 m²

Strongly below

Habitable Rooms

2 rooms

Street avg 2 rooms

On par

CO₂ Emissions

2.5 t/year

Street avg 1.6 t/year

Strongly below
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

Crime

260/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

St Andrews Church — bus stop.

Closest school

0.7 km

Solent Infant School. 21 schools nearby.

Nearest schools

  • Solent Infant SchoolPrimary669m
  • Solent Junior SchoolPrimary825m
  • Morelands Primary SchoolPrimary1.2km
  • Springfield SchoolSecondary1.4km

Nearest stops

  • St Andrews ChurchBus stop56m
  • Sunshine InnBus stop183m
  • First AvenueBus stop212m
  • Rectory AvenueBus stop452m

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 1AB from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PO6 1AB

Daytime· 07:00 – 23:00

54.6dB

Low
Night-time road noise heatmap for PO6 1AB

Night-time· 23:00 – 07:00

45.4dB

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 build

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.
£142k

Berdonna Court, Flat 7, 2 Copper Beech Drive

PO6 1AZ

Flat1 bed
£146k

Berdonna Court, Flat 3, 2 Copper Beech Drive

PO6 1AZ

Flat1 bed1 bath
£170k

Cavalier Court, Flat 5, Copsey Close, Drayton

PO6 1NX

Flat2 bed1 bath
£187k

Berdonna Court, Flat 6, 2 Copper Beech Drive

PO6 1AZ

Flat2 bed
£188k

Cavalier Court, Flat 6, Copsey Close, Drayton

PO6 1NX

Flat2 bed1 bath
£189k

Berdonna Court, Flat 2, 2 Copper Beech Drive

PO6 1AZ

Flat2 bed1 bath
£191k

Cavalier Court, Flat 1, Copsey Close, Drayton

PO6 1NX

Flat2 bed1 bath
£191k

Cavalier Court, Flat 2, Copsey Close, Drayton

PO6 1NX

Flat2 bed1 bath

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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 Westmark House is modelled from its 38 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in PO6 1AB. 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. 1 sale is recorded for Westmark House. 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 Westmark House was lodged in July 2020 at band D and is valid until July 2030. 6 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 Westmark House. 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 21 schools and 30 stops listed are measured in a straight line from PO6 1AB, 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 Westmark House, Flat 1, 436 Havant Road, Farlington, Portsmouth, PO6 1AB. Each answer is also embedded as structured data for search engines.

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