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21 Heron House, Semington Strand, Swindon, SN1 7DL

EPC B

Estimated value

£166,000

  • Since the 2022 sale (£164,000)+1%
  • Against SN1 7DL's recent median (£210,000)-21%

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
Mid terrace
Floor 2
Bedroom
1
Bathroom
1
Floor area
44 m²
474 sq ft
Energy rating
B
Score 84
Tenure
Owner Occupied
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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

£166,000

  • Against its 2022 sale (£164,000)+1%
  • Against SN1 7DL's recent median (£210,000)-21%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Heron House is modelled from its 44 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SN1 7DL. 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

    44 m² from the EPC lodged in January 2022

  • Sales of this home

    1 sale recorded, the latest in 2022

  • Recent sales in SN1 7DL

    5 sales, median £210,000 (2025–2023)

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. 25 February 2022Most recent

    £164,000

Median price across the last 5 sales in SN1 7DL: £210,000 (2025–2023).

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 21 Heron House

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

21 Heron House is a one-bedroom mid-terrace house in Swindon (SN1 7DL). It has a recorded floor area of 44 m² (around 474 sq ft) and construction records dating it to 2022. At 44 m² this is the smallest unit on EPC record across the building (44–67 m²). The latest certificate (January 2022) returns a B (score 84), comfortably above the UK average.

On a £-per-square-foot basis, the last sale (£346/sq ft) was about 18.4% above the typical sold price in the postcode. At 44 m² it's 27.9% smaller than the typical home in the postcode (61 m² median across 23 EPCs). Most recent transfer: February 2022 at £164,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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
Before you decide

Everything you need to know about 21 Heron 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.

21 Heron House's carbon output is low for the local stock.

Current Certificate
Jan 2022

EPC Rating

A
B
B84
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
0.6 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 21 January 2032

5 years remaining
Planning

Planning history

Applications and permits filed against 21 Heron House, Semington Strand, Swindon, SN1 7DL, sourced from the PlanIt planning register.

21 Heron 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 Semington Strand homes

Four headline reads against 23 similar flats on this street, drawn from the latest EPC and Land Registry data.

21 Heron House outperforms the street on price per m² by a wide margin.

Price per m²

£3,727

Street avg £3,286

Strongly above

Floor Area

44 m²

Street avg 58 m²

Strongly below

CO₂ Emissions

0.6 t/year

Street avg 0.8 t/year

Strongly above

Years Held

4 years

Street avg 4 years

Below
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

380/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

The Deanery Academy — bus stop.

Closest school

0.1 km

The Deanery CofE Academy. 23 schools nearby.

Nearest schools

  • The Deanery CofE AcademySecondary141m
  • Kingfisher CE AcademyPrimary166m
  • East Wichel Primary School & NurseryPrimary1.1km
  • Lift HazelwoodPrimary1.3km

Nearest stops

  • The Deanery AcademyBus stop186m
  • WaitroseBus stop364m
  • St Helens ViewBus stop580m
  • Tithe Barn CrescentBus stop727m

Most reported crime locally

  • Violence & Sexual Offences2,179 reports34%
  • Anti-social Behaviour1,332 reports21%
  • Shoplifting636 reports10%
  • Public Order534 reports8%

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 SN1 7DL from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SN1 7DL

Daytime· 07:00 – 23:00

51.2dB

Low
Night-time road noise heatmap for SN1 7DL

Night-time· 23:00 – 07:00

42.8dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
SDL Surveying

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Level 2 HomeBuyer Report

21st century2nd Floor FlatEPC B

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.

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£168k

1 Brentfore Street

SN1 7BN

1 bed
£168k

1 Haskins House, Beckett Strand

SN1 7DH

1 bed
£216k

1 Beavans House, Semington Strand

SN1 7DP

2 bed
£216k

1 Jenkins House, Beckett Strand

SN1 7DG

2 bed2 bath
£266k

1 East Wichel Way

SN1 7AD

2 bed1 bath
£293k

1 Aviemore Road

SN1 7AL

3 bed2 bath
£327k

1 Dunsley Vale

SN1 7BW

3 bed2 bath
£354k

1 Hodges Close

SN1 7DX

3 bed2 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 21 Heron House is modelled from its 44 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SN1 7DL. 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 21 Heron 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 21 Heron House was lodged in January 2022 at band B and is valid until January 2032. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Heron 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 17 months, which places each incident at an approximate point. The 23 schools and 30 stops listed are measured in a straight line from SN1 7DL, 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 21 Heron House, Semington Strand, Swindon, SN1 7DL. Each answer is also embedded as structured data for search engines.

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