18 Commonside, Downley, High Wycombe, HP13 5XG
About 18 Commonside
18 Commonside is a five-bedroom semi-detached house in Downley, High Wycombe, High Wycombe (HP13 5XG). It has a recorded floor area of 148 m² (around 1593 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (May 2015) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). The latest certificate is from May 2015, so improvements made since then won't be reflected.
At 148 m² the property is well over the postcode median (69 m² across 36 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. One planning record on file: an extension approved in 2004. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 11 years ago, in October 2015. Across 2007–2015, sale prices on this property compounded at 3.7% per year. Today's modelled estimate of £731,000 is 22.7% above the 2015 sale price.
What this property has
Inside
- Bedrooms5
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageYes
Everything you need to know about 18 Commonside
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
18 Commonside'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This certificate is over 10 years old and is no longer valid.Expired 05 May 2025
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,220 · Includes VAT
Planning history
Council records include a two-storey rear extension at 18 Commonside.
1 application on record at 18 Commonside, Downley, High Wycombe, HP13 5XG
- Dec 2004ExtensionFullOutcome in report
Extension: Two storey · Rear of property
Construction of two storey rear extension
- Documents
- 6 docs on file
- Reference
- 04/07776/FUL
Unlock 18 Commonside, Downley, High Wycombe, HP13 5XG's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 11 notable nearby
- The 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
18 Commonside valuation sits well clear of the typical sold price in this postcode.
£731,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 8 years.
£596,000
Growth on file: 3.7% per year over 8 years.
Sales timeline
8 October 2015Most recent
£596,000
+32.4%over 7 years7 December 2007
£450,000
Median price across the last 5 sales in HP13 5XG: £405,016 (2024–2022).
Nearby sales in HP13 5XG
52 Commonside, Downley, High Wycombe, HP13 5XG
Sold May 2024
£520,00016a, Commonside, Downley, High Wycombe, HP13 5XG
Sold Oct 2023
£405,01616 Commonside, Downley, High Wycombe, HP13 5XG
Sold Aug 2023
£400,0006a, Commonside, Downley, High Wycombe, HP13 5XG
Sold Dec 2022
£380,00044 Commonside, Downley, High Wycombe, HP13 5XG
Sold Sept 2022
£645,000
Versus other Commonside homes
18 Commonside outperforms the street on floor area by a wide margin.
Price per m²
£4,027
Street avg £4,994
Floor Area
148 m²
Street avg 80 m²
Habitable Rooms
8 rooms
Street avg 4 rooms
CO₂ Emissions
5.1 t/year
Street avg 4.6 t/year
Everything you need to know about 18 Commonside
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Commonside — bus stop.
Closest school
0.6 km
The Downley School. 12 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
44.9dB

Night-time· 23:00 – 07:00
36.4dB






