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18 Avebury House, Bentham Close, Westlea, Swindon, SN5 7FS

Estimated value

£139,000

  • Since the 2016 sale (£123,950)+12%
  • Against SN5 7FS's recent median (£137,500)+1%

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

Learn about this valuation
Property type
Semi-detached
Floor 02
Bedroom
1
Bathroom
1
Floor area
35 m²
377 sq ft
Energy rating
C
Score 69
Council tax
Band A
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

£139,000

  • Against its 2016 sale (£123,950)+12%
  • Against SN5 7FS's recent median (£137,500)+1%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18 Avebury House is modelled from its 35 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SN5 7FS. 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

    35 m² from the EPC lodged in June 2026

  • Sales of this home

    1 sale recorded, the latest in 2016

  • Recent sales in SN5 7FS

    5 sales, median £137,500 (2025–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 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.

Sales timeline

  1. 5 February 2016Most recent

    £123,950

Median price across the last 5 sales in SN5 7FS: £137,500 (2025–2018).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks 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 18 Avebury House

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

18 Avebury House is a one-bedroom semi-detached house in Westlea, Swindon, Swindon (SN5 7FS). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 2012 onwards and council tax band A. At 35 m² this is the 2nd smallest of 21 units on EPC record in the building, where floor areas span 34–66 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2026) shows a C (score 69), just inside the C band. When first surveyed in November 2015 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Poor and main heating went from Very Poor to Average; while roof efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Poor. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.

At 35 m² it sits well below the postcode median (55 m² across 20 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). Today's modelled estimate of £139,000 is 12.1% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£329/sq ft) was about 45.7% above the typical sold price in the postcode. 11 years since the last transfer (February 2016).

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

  • ParkingAllocated

Building

  • Heating systemElectric
  • RefurbishedYes
Before you decide

Everything you need to know about 18 Avebury House

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

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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.

18 Avebury House's carbon output is low for the local stock.

Current Certificate(1 of 2)
Jun 2026

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Poor
Windows
Poor
CO2 Emissions
0.6 t/year
Occupancy
Rented

Certificate validity

Valid until 16 June 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Jun 2026from Nov 2015
EPC improved fromE54toC69
Heating System
Room HeatersStorage Heaters

Heating system upgraded to a more efficient system

Hot Water
ImmersionImmersion (Off-Peak)

Hot water system upgraded

Wall Insulation
Partial InsulationInsulated

Wall insulation upgraded

Planning

Planning history

Applications and permits filed against 18 Avebury House, Bentham Close, Westlea, Swindon, SN5 7FS, sourced from the PlanIt planning register.

18 Avebury House has no planning applications on record.

A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.

On the street

Versus other Bentham Close homes

Four headline reads against 20 similar flats on this street, drawn from the latest EPC and Land Registry data.

18 Avebury House outperforms the street on price per m² by a wide margin.

Price per m²

£3,541

Street avg £2,529

Strongly above

Floor Area

35 m²

Street avg 53 m²

Strongly below

Habitable Rooms

2 rooms

Street avg 3 rooms

Below

CO₂ Emissions

0.6 t/year

Street avg 1.6 t/year

Strongly 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

186/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Westlea Fire Station — bus stop.

Closest school

0.4 km

Westlea Primary School. 26 schools nearby.

Nearest schools

  • Westlea Primary SchoolPrimary406m
  • Shaw Ridge Primary SchoolPrimary917m
  • Lift HazelwoodPrimary1.1km
  • Even Swindon Primary SchoolPrimary1.1km

Nearest stops

  • Westlea Fire StationBus stop246m
  • Ashworth RoadBus stop407m
  • Birdcombe RoadBus stop460m
  • Littlecote CloseBus stop543m

Most reported crime locally

  • Violence & Sexual Offences890 reports40%
  • Anti-social Behaviour364 reports16%
  • Shoplifting211 reports9%
  • Public Order206 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 SN5 7FS from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SN5 7FS

Daytime· 07:00 – 23:00

50.5dB

Low
Night-time road noise heatmap for SN5 7FS

Night-time· 23:00 – 07:00

40.9dB

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

21st century2nd Floor FlatEPC CNo mains gas

Because the property has no mains gas supply, 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.
£135k

1 Avebury House, Bentham Close, Westlea

SN5 7FS

1 bed1 bath
£163k

1 Birdcombe Road, Westlea

SN5 7BJ

1 bed1 bath
£170k

1 Eastleaze Road, Eastleaze

SN5 7EB

1 bed
£172k

1 Frampton Close, Eastleaze

SN5 7EN

1 bed1 bath
£181k

1 Denbeck Wood, Eastleaze

SN5 7EJ

1 bed1 bath
£153k

1 Mannington Lane, Westlea

SN5 7AJ

2 bed1 bath
£222k

1 Littlecote Close, Westlea

SN5 7AL

2 bed1 bath
£224k

1 Melrose Close, Westlea

SN5 7ED

2 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 18 Avebury House is modelled from its 35 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SN5 7FS. 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 18 Avebury 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 18 Avebury House was lodged in June 2026 at band C and is valid until June 2036. 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 18 Avebury 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 12 months, which places each incident at an approximate point. The 26 schools and 30 stops listed are measured in a straight line from SN5 7FS, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
18 Avebury House is in council tax band A. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Avebury House, Bentham Close, Westlea, Swindon, SN5 7FS. Each answer is also embedded as structured data for search engines.

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