Skip to content
UK Property Looker

4a, Costow, Swindon, SN4 9QN

Estimated value

£995,000

  • Since the 2022 sale (£925,000)+8%
  • Against SN4 9QN's recent median (£430,000)+131%

Newest record on this page: December 2025. 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 area
207 m²
2228 sq ft
Energy rating
C
Score 71
Get directions (opens in a new tab)
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

£995,000

  • Against its 2022 sale (£925,000)+8%
  • Against SN4 9QN's recent median (£430,000)+131%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 4a is modelled from its 207 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SN4 9QN. 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

    207 m² from the EPC lodged in January 2022

  • Sales of this home

    1 sale recorded, the latest in 2022

  • Recent sales in SN4 9QN

    5 sales, median £430,000 (2025–2006)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 2025Latest 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.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

  1. 15 November 2022Most recent

    £925,000

Median price across the last 5 sales in SN4 9QN: £430,000 (2025–2006).

Risks

What this page doesn't show

1 potential issue has already been flagged for 4a, Costow, Swindon, SN4 9QN. The detail, evidence and what to ask about it are in the Risks 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 4a

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

4a is a detached house in Costow, Swindon, Swindon (SN4 9QN). It has a recorded floor area of 207 m² (around 2228 sq ft) and construction records dating it to 2022. The latest certificate (January 2022) shows a C (score 71). When first surveyed in December 2014 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Very Good, roof efficiency went from Good to Very Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 88). Main heating runs on oil: heating oil.

At 207 m² the property is well over the postcode median (113 m² across 5 EPCs), placing it in the larger end of the local stock. Most recent transfer: November 2022 at £925,000. 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 4a

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

Larger development activity nearby

Pick your report · from £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.

4a's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Jan 2022

EPC Rating

A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Average
Windows
Good
CO2 Emissions
6.1 t/year
Occupancy
—

Certificate validity

Valid until 21 January 2032

5 years remaining

Property Improvements

Changes detected from historical EPC data

Jan 2022from Dec 2014
EPC improved fromE41toC71
Main Fuel
LPGOil

Fuel source changed

Heating Controls
FullFull Control

Heating controls upgraded for better temperature management

Hot Water
PoorAverage

Hot water efficiency improved

Windows
AverageGood

Window efficiency improved

Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Roof
GoodVery Good

Roof insulation improved

Floor Insulation
UninsulatedInsulated

Floor insulation added or improved

Low Energy Lighting
10%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 4a, Costow, Swindon, SN4 9QN, sourced from the PlanIt planning register.

4a has no planning applications on record.

2

But the area is active

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

On the street

Versus the street

Four headline reads against 5 similar houses on this street, drawn from the latest EPC and Land Registry data.

4a outperforms the street on epc rating by a wide margin.

Price per m²

£4,469

Street avg £4,314

Above

Floor Area

207 m²

Street avg 120 m²

Strongly above

CO₂ Emissions

6.1 t/year

Street avg 5.5 t/year

Below

Years Held

4 years

Street avg 3 years

Above
Area

The neighbourhood at a glance

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

Crime

117/mo

Steady year-on-year across the wider district.

Nearest stop

0.7 km

Hay Lane — bus stop.

Closest school

1.4 km

Millbrook Primary School. 10 schools nearby.

Nearest schools

  • Millbrook Primary SchoolPrimary1.4km
  • Lift HazelwoodPrimary1.9km
  • Kingfisher CE AcademyPrimary2.0km
  • The Deanery CofE AcademySecondary2.0km

Nearest stops

  • Hay LaneBus stop690m
  • Blagrove ManBus stop935m
  • Water Research CouncilBus stop970m
  • Ramsden RoadBus stop1.1km

Most reported crime locally

  • Violence & Sexual Offences638 reports42%
  • Anti-social Behaviour256 reports17%
  • Criminal Damage & Arson150 reports10%
  • Public Order138 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 SN4 9QN from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SN4 9QN

Daytime· 07:00 – 23:00

54.5dB

Low
Night-time road noise heatmap for SN4 9QN

Night-time· 23:00 – 07:00

46.2dB

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 2 HomeBuyer Report

21st centuryDetached BungalowEPC 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 £1,145 · 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.
£983k

1 Church Hill, Wroughton

SN4 9JR

£725k

1 Clevedon Gardens, Wroughton

SN4 9EZ

£553k

1 Badgers Brook, Wroughton

SN4 9DG

4 bed2 bath
£553k

1 Burderop Close, Wroughton

SN4 9SE

4 bed2 bath
£510k

1 Baileys Way, Wroughton

SN4 9AH

4 bed2 bath
£503k

1 Bedford Street, Wroughton

SN4 9DF

£450k

1 Costow Farm Cottages, Costow

SN4 9QN

£374k

1 Artis Avenue, Wroughton

SN4 9BP

Property research, connected

Get up to date data on unlimited properties per month

Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.

Start your research
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 4a is modelled from its 207 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SN4 9QN. 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 4a. 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 4a was lodged in January 2022 at band C and is valid until January 2032. 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 4a. 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 13 months, which places each incident at an approximate point. The 10 schools and 30 stops listed are measured in a straight line from SN4 9QN, 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 4a, Costow, Swindon, SN4 9QN. Each answer is also embedded as structured data for search engines.

Know this home? Think our valuation is wrong?

Leave a note for other visitors about work done or anything the records miss, and say what you think it's worth. It takes about two minutes.

Keep exploring