Model valuation£417,0008 Busby Close
Local market context
3 Costow Farm Cottages is a detached house in Costow, Swindon, Swindon (SN4 9QN). It has a recorded floor area of 113 m² (around 1216 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (November 2018) shows an E (score 41), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 63). Main heating runs on oil.
9 planning records sit against the property, 6 approved, 2 refused. Past consents include an extension, a porch and a conservatory, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Today's modelled estimate of £524,000 is 21.9% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£354/sq ft) was about 18.2% below the postcode norm. Last sale on file: £430,000 in December 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
3 Costow Farm Cottages's carbon output runs well above what efficient homes in the postcode produce.
Certificate validity
Valid until 16 November 2028
Get a survey for this property
Because the property has been extended more than once and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
3 Costow Farm Cottages has been through 6 approved planning applications — a well-evolved property.
9 applications on record at 3 Costow Farm Cottages, Costow, Swindon, SN4 9QN
Certificate of Lawfulness for a proposed rear conservatory, two half dormer windows to front and a front porch.
+ 6 more applications in the report
You're seeing the shape of it. The report has the substance.
One time fee only - money back guarantee
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£524,000
Modelled from EPC, postcode comparables.
£430,000
Recorded with HM Land Registry.
17 December 2021Most recent
£430,000
Median price across the last 5 sales in SN4 9QN: £450,000 (2025–2006).
3a The Bungalow, Costow, Swindon, SN4 9QN
Sold Dec 2025
4 Old Barn, Costow, Swindon, SN4 9QN
Sold Dec 2022
4a, Costow, Swindon, SN4 9QN
Sold Nov 2022
Willow Cottage, Costow, Swindon, SN4 9QN
Sold Aug 2019
1 Costow Farm Cottages, Costow, Swindon, SN4 9QN
Sold Apr 2003
Price per m² for 3 Costow Farm Cottages lags the street by a wide margin.
Price per m²
£3,805
Street avg £4,535
Floor Area
113 m²
Street avg 139 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
8.5 t/year
Street avg 5.0 t/year
Property research, connected
Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.
Start your researchSN4 9AH
SN4 9DF
SN4 9DG
SN4 9SE
SN4 9QN
SN4 9EZ
SN4 9BP
SN4 9HN
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.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.

Daytime· 07:00 – 23:00
54.5dB

Night-time· 23:00 – 07:00
46.2dB