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4a, Costow, Swindon, SN4 9QN

Property type
Detached
Floor area
207 m²
2228 sq ft
Energy rating
C
Score 71
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. Today's modelled estimate of £1,037,000 is 12.1% above the 2022 sale price. 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 · 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.

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

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

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 £1,245 · Includes VAT

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.

Price

Sales history & valuation

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

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

Current estimate

£1,037,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2022)

£925,000

Recorded with HM Land Registry.

Sales timeline

  1. 15 November 2022Most recent

    £925,000

Median price across the last 5 sales in SN4 9QN: £430,000 (2022–2003).

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 £4,665

Below

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 9 years

Below
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 · 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
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.

Crime

2/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.

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
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.