I Wonder, School Close, Downley, High Wycombe, HP13 5TR
About I Wonder
I Wonder is a semi-detached house in Downley, High Wycombe, High Wycombe (HP13 5TR). It has a recorded floor area of 79 m² (around 847 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (August 2010) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 65). The latest certificate is from August 2010, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2003–2018, sale prices on this property compounded at 4.8% per year. Today's modelled estimate of £450,000 is 16.9% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£455/sq ft) was about 43.4% above the typical sold price in the postcode. Last sale on file: £385,000 in November 2018.
Everything you need to know about I Wonder
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
I Wonder sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 23 Aug 2020
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
A recent planning application at I Wonder was refused — worth checking the council file.
3 applications on record at I Wonder, School Close, Downley, High Wycombe, HP13 5TR
- Jun 2015ExtensionFullOutcome in report
Extension: Single storey · Rear of property
Householder application for erection of single storey rear extension
- Documents
- 9 docs on file
- Reference
- 15/05863/FUL
- More recent applications — locked
- ExtensionJun 2025Decision
- ExtensionAug 2024Decision
Unlock I Wonder, School Close, Downley, High Wycombe, HP13 5TR's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 11 notable nearby
- The 33 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has at least doubled since 2003.
£450,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.8% per year over 16 years.
£385,000
Growth on file: 4.8% per year over 16 years.
Sales timeline
22 November 2018Most recent
£385,000
+108.1%over 15 years3 April 2003
£185,000
Median price across the last 5 sales in HP13 5TR: £425,000 (2025–2023).
Nearby sales in HP13 5TR
42 School Close, Downley, High Wycombe, HP13 5TR
Sold Mar 2025
£480,00027 School Close, Downley, High Wycombe, HP13 5TR
Sold Nov 2024
£450,00011 School Close, Downley, High Wycombe, HP13 5TR
Sold Jun 2024
£425,00020 School Close, Downley, High Wycombe, HP13 5TR
Sold May 2024
£400,00039 School Close, Downley, High Wycombe, HP13 5TR
Sold May 2023
£340,000
Versus other School Close homes
On epc rating, I Wonder runs well behind the street norm.
Price per m²
£4,894
Street avg £4,064
Floor Area
79 m²
Street avg 89 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.3 t/year
Street avg 2.5 t/year
Everything you need to know about I Wonder
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
0.2 km
Memorial Hall — bus stop.
Closest school
0.4 km
The Downley School. 11 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
46.0dB

Night-time· 23:00 – 07:00
36.7dB






