21 Petty Lane, Derry Hill, Calne, SN11 9QY
About 21 Petty Lane
21 Petty Lane is a four-bedroom detached house in Derry Hill, Calne, Calne (SN11 9QY). It has a recorded floor area of 106 m² (around 1143 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (April 2011) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 70). The latest certificate is from April 2011, so improvements made since then won't be reflected.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2020, sale prices on this property compounded at 5.4% per year. Today's modelled estimate of £479,000 is 15.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£363/sq ft) was about 82% above the typical sold price in the postcode. Sold October 2020 for £415,000.
Know exactly what you're buying at 21 Petty Lane
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
Energy performance
21 Petty Lane's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 28 Apr 2021
EPC Rating
Planning history
21 Petty Lane has an approved rear extension on the planning record.
- Jan 2025RenovationFullIn report
Build up walls to two bedrooms to same eaves level as remainder of house and install one new window in each bedroom. Roof to be amended to reflect remainder of the property. There will be no change in overall footprint of the property nor height of eaves
- Documents
- 15 docs on file
- Reference
- PL/2024/10299
- Mar 2012ExtensionFullIn report
Extension: Rear of property
Rear Extension to Form Replacement Garden Room
- Reference
- N/12/00378/FUL
What's in 21 Petty Lane, Derry Hill, Calne, SN11 9QY's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
21 Petty Lane has more than tripled in price since its earliest registered sale in 1999.
£479,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 21 years.
£415,000
Growth on file: 5.4% per year over 21 years.
Sales timeline
8 October 2020Most recent
£415,000
+44.1%over 8 years5 September 2012
£288,000
+111.8%over 13 years8 July 1999
£136,000
Median price across the last 5 sales in SN11 9QY: £550,000 (2025–2023).
Nearby sales in SN11 9QY
16 Petty Lane, Derry Hill, Calne, SN11 9QY
Sold Jul 2025
£550,00014 Petty Lane, Derry Hill, Calne, SN11 9QY
Sold Jan 2025
£420,00025 Petty Lane, Derry Hill, Calne, SN11 9QY
Sold Jan 2025
£595,00035 Petty Lane, Derry Hill, Calne, SN11 9QY
Sold May 2024
£540,00015 Petty Lane, Derry Hill, Calne, SN11 9QY
Sold Sept 2023
£580,000
Everything we know about 21 Petty Lane, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Petty Lane homes
Price per m²
£3,908
Street avg £3,191
Floor Area
106 m²
Street avg 117 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
4.1 t/year
Street avg 4.2 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Studley Crossroads — bus stop.
Closest school
0.2 km
Derry Hill Church of England Voluntary Aided Primary School. 2 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
48.0dB

Night-time· 23:00 – 07:00
40.7dB