How much is Downderry, South Marston, Swindon, SN3 4SR worth?
Estimated value — November 2026
£671,000
Likely range £581,000 – £830,000Four in five similar homes sold within their range when we tested it.
Latest recorded sale September 2018
66%
confidence
High
Typically within 9% of the sale price
Property details
Detached house
Swindon · SN3 4SR
Energy performance
Mains Gas · EPC 9848-5079-6289-5761-2090 · inspected January 2009
Address
- District
- Swindon
- County
- Swindon
Value over time
- Modelled value
- Recorded sale
- Projected
- Likely range (80%)
- Today's estimate
Drawn through each of this property's recorded sales and ending at today's estimate, with the UK House Price Index for its area and property type filling in the months between. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from a recorded sale, and today it matches the likely range above.
View as a table
| Year | Modelled value | Likely range | Recorded sale |
|---|---|---|---|
| 2002 | £219,000 | £219,000 – £219,000 | £219,000 |
| 2003 | £257,563 | £225,251 – £309,431 | — |
| 2004 | £321,447 | £280,483 – £371,877 | — |
| 2005 | £349,548 | £305,176 – £408,166 | — |
| 2006 | £425,798 | £369,385 – £527,562 | — |
| 2007 | £487,424 | £416,153 – £644,262 | £499,995 |
| 2008 | £400,519 | £350,074 – £476,593 | — |
| 2009 | £402,794 | £350,814 – £465,437 | — |
| 2010 | £413,054 | £357,032 – £475,553 | — |
| 2011 | £390,857 | £335,101 – £450,619 | — |
| 2012 | £388,120 | £330,080 – £450,336 | — |
| 2013 | £399,430 | £341,085 – £462,125 | — |
| 2014 | £426,246 | £366,925 – £490,619 | — |
| 2015 | £465,873 | £404,260 – £537,061 | — |
| 2016 | £486,261 | £424,534 – £567,806 | — |
| 2017 | £503,378 | £436,687 – £623,684 | — |
| 2018 | £493,598 | £421,612 – £651,100 | £500,000 |
| 2019 | £493,989 | £431,133 – £591,484 | — |
| 2020 | £523,595 | £455,270 – £617,144 | — |
| 2021 | £563,503 | £487,423 – £668,580 | — |
| 2022 | £626,974 | £540,404 – £751,132 | — |
| 2023 | £630,007 | £542,235 – £763,025 | — |
| 2024 | £650,569 | £560,323 – £794,652 | — |
| 2025 | £654,108 | £564,931 – £804,904 | — |
| 2026 | £671,000 | £581,000 – £830,000 | — |
Sale history
Mortgage calculator
£3,601
Estimated monthly repayment
£603,900
Loan amount
£692,566
Total interest
£1,296,466
Total repayable
A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.
Related properties
- 4 Church Farm Lane, South Marston, Swindon, SN3 4SR£510,000 · 2021£690,000
- 1 Church Farm Lane, South Marston, Swindon, SN3 4SR£481,500 · 2010£694,000
- 3 Church Farm Lane, South Marston, Swindon, SN3 4SR£479,250 · 2004£644,000
- Rose Cottage, South Marston, Swindon, SN3 4SR£520,000 · 2021£598,000
- The Paddocks, Church Farm Lane, South Marston, Swindon, SN3 4SR£555,000 · 2014£823,000
- The Maples, South Marston, Swindon, SN3 4SR£290,000 · 1999£766,000
- St Marys, South Marston, Swindon, SN3 4SR£122,000 · 1997£505,000
- Walnut Tree House, South Marston, Swindon, SN3 4SR£647,500 · 2018£847,000
- Elm Cottage, 1, South Marston, Swindon, SN3 4SR£384,000 · 2022£418,000
- The Vicarage, South Marston, Swindon, SN3 4SR£480,000 · 2019—
About this property
Downderry, South Marston, Swindon, SN3 4SR is a detached house in Swindon (SN3). Stede's estimated value for November 2026 is £671,000. Four in five similar homes sold within their likely range when tested; for this property that range is £581,000 to £830,000. It combines its own last sale brought up to date with the House Price Index (75%) and the recent price per m² in the same postcode sector applied to its floor area (25%). The confidence score is 66 out of 100 (high): estimates like this one are typically within 9% of the eventual sale price.
It last sold in September 2018 for £500,000. It has 3 sales on record, the earliest in 2002. The current estimate is 34% higher than that price. The current owner has held it for about 8 years.
Its EPC energy-efficiency rating is band D (62 out of 100). The certificate records a total floor area of 204 m² (2,196 sq ft). It was lodged in January 2009.
The modelled value is up 2% over the past year and up 20% over the past five years.
Among 9 nearby properties Stede tracks in the SN3 area, estimated values run from £418,000 to £847,000. This detached house's £671,000 sits around the middle of that range.
Common questions
How much is Downderry, South Marston, Swindon, SN3 4SR worth?
Stede estimates Downderry, South Marston, Swindon, SN3 4SR is worth £671,000 as of November 2026, within a likely range of £581,000 to £830,000. The estimate is generated automatically from recorded sale prices of this and similar nearby homes and the UK House Price Index, and is not a formal valuation.
When did Downderry, South Marston, Swindon, SN3 4SR last sell?
It last sold in September 2018 for £500,000. There are 3 sales on record, the earliest in 2002.
What type of property is Downderry, South Marston, Swindon, SN3 4SR?
It is recorded as a Detached house in the SN3 postcode area.
What is the EPC rating of Downderry, South Marston, Swindon, SN3 4SR?
Downderry, South Marston, Swindon, SN3 4SR has an EPC energy-efficiency rating of band D (62 out of 100). The certificate records a floor area of 204 m² (2,196 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.
How reliable is this estimate?
The confidence score is 66 out of 100 (high). Tested against real sales of similar homes, estimates like this one are typically within 9% of the sale price, and four in five sold within their likely range. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.
How does Stede calculate this estimate?
It combines its own last sale brought up to date with the House Price Index (75%) and the recent price per m² in the same postcode sector applied to its floor area (25%). Each piece of evidence gets the share that proved most accurate when tested against real sales of similar homes, and the same testing sets the likely range and confidence. Full detail is on the methodology page.
How we got this figure
We weighed the evidence below, giving each piece the share that proved most accurate when we tested it against real sales of similar homes. The likely range and confidence come from testing the same method against 14,137 real sales of similar homes.
- Its sale in September 2018, brought up to today with the House Price Index£633,47575%
- Recent price per m² in the same postcode sector, for its 204 m²£785,14125%
Estimate £671,000, likely £581,000 – £830,000
Read the full methodology and data sources →