21 Brook Street, Chippenham, SN14 0HN
About 21 Brook Street
21 Brook Street is a three-bedroom semi-detached house in Chippenham (SN14 0HN). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (August 2021) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 82), a 2-band jump. Records show the property has been extended at some point in its history.
At 103 m² the property is well over the postcode median (70 m² across 13 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2007. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. Across 2007–2022, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £302,000 is 14% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£239/sq ft) was about 16.9% above the typical sold price in the postcode. Last sale on file: £265,000 in January 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- CloakroomYes
Outside
- Private gardenRear
- DrivewayYes
Building
- Previously extendedYes
Everything you need to know about 21 Brook Street
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
- Oct 2007Garage ConversionFullIn report
Extension: Rear of property
Proposed Rear Conservatory, Conversion of Garage to Bedroom and Extend Driveway
Extension- Reference
- N/07/02390/FUL
What's in 21 Brook Street, Chippenham, SN14 0HN's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£302,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.1% per year over 15 years.
£265,000
Growth on file: 4.1% per year over 15 years.
Sales timeline
28 January 2022Most recent
£265,000
+81.5%over 15 years25 January 2007
£146,000
Median price across the last 5 sales in SN14 0HN: £255,000 (2025–2021).
Nearby sales in SN14 0HN
Versus other Brook Street homes
21 Brook Street outperforms the street on floor area by a wide margin.
Price per m²
£2,573
Street avg £2,855
Floor Area
103 m²
Street avg 76 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.7 t/year
Everything you need to know about 21 Brook Street
The true value, the hidden risks and the full sale history, in one report.
30-day money-back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Redland School — bus stop.
Closest school
0.2 km
Redland Primary School. 14 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
50.2dB
Night-time· 23:00 – 07:00
40.5dB