Twin Firs, The Common, Downley, High Wycombe, HP13 5YJ
About Twin Firs
Twin Firs is a detached house in Downley, High Wycombe, High Wycombe (HP13 5YJ). It has a recorded floor area of 65 m² (around 700 sq ft) and construction records dating it to 1930-1949. The latest certificate (November 2019) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in October 2017 the rating was G, the property has climbed 3 bands since. Between certificates, roof efficiency went from Average to Very Good, window efficiency went from Very Poor to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 80).
10 planning records sit against the property, 3 approved, 2 refused, 1 pending. Past consents include an extension and tree works, meaningful when judging how the property has evolved. An application is currently awaiting a decision. Across 2005–2024, sale prices on this property compounded at 9.3% per year. Last sale on file: £640,000 in September 2024.
Everything you need to know about Twin Firs
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
There is a planning application currently awaiting a decision.
10 applications on record at Twin Firs, The Common, Downley, High Wycombe, HP13 5YJ
1 live now- Jun 2005Tree WorksTreesOutcome in report
Fell two Pine Trees
- Documents
- 7 docs on file
- Reference
- 05/06138/CTREE
- More recent applications — locked
- OutbuildingOct 2025Decision
- OutbuildingJul 2025Decision
+ 7 more applications in the report
Unlock Twin Firs, The Common, Downley, High Wycombe, HP13 5YJ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (9 on record)
- All 10 applications on this property in full, plus 11 notable nearby
- The 46 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Twin Firs has more than quadrupled in price since its earliest registered sale in 2005.
£586,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.3% per year over 19 years.
£640,000
Growth on file: 9.3% per year over 19 years.
Sales timeline
24 September 2024Most recent
£640,000
+88.2%over 6 years29 April 2018
£340,000
+197.9%over 12 years12 May 2005
£114,130
Median price across the last 5 sales in HP13 5YJ: £186,000 (2023–1996).
Everything you need to know about Twin Firs
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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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
0.6 km
Memorial Hall — bus stop.
Closest school
0.7 km
The Downley 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.
Road noise across the postcode

Daytime· 07:00 – 23:00
41.3dB

Night-time· 23:00 – 07:00
35.3dB






