4 South Hills, Brill, Aylesbury, HP18 9TQ
About 4 South Hills
4 South Hills is a semi-detached house in Brill, Aylesbury, Aylesbury (HP18 9TQ). It has a recorded floor area of 136 m² (around 1464 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (July 2017) shows a C (score 69), just inside the C band. When first surveyed in September 2016 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good and main heating went from Poor to Good; while roof efficiency dropped from Very Good to Good and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to B (score 81). Main heating runs on electricity.
4 planning records sit against the property, 1 approved, 2 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). Across 2014–2020, sale prices on this property compounded at 22% per year. Today's modelled estimate of £670,000 is 27.3% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£360/sq ft) was about 16.3% above the typical sold price in the postcode. Most recent transfer: August 2020 at £526,500.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
4 applications on record at 4 South Hills, Brill, Aylesbury, HP18 9TQ
- Feb 2015ExtensionFullOutcome in report
Extension: Two storey · Side of property
Two storey side extension to no. 4 South Hills. Erection of two semi-detached dwellings to rear. Demolition of existing Lane Cottage and replacement with a new dwelling.
- Documents
- 21 docs on file
- Reference
- 14/03765/APP
- More recent applications — locked
- ExtensionFeb 2017Decision
- ConditionsSept 2016Decision
+ 1 more application in the report
Unlock 4 South Hills, Brill, Aylesbury, HP18 9TQ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (4 on record)
- All 4 applications on this property in full, plus 2 notable nearby
- The 72 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has grown by over 3x since 2014.
£670,000
Modelled from EPC, postcode comparables and a sale-price growth of 22.0% per year over 6 years.
£526,500
Growth on file: 22.0% per year over 6 years.
Sales timeline
27 August 2020Most recent
£526,500
+1.3%over 3 years15 September 2016
£520,000
+225.0%over 2 years28 August 2014
£160,000
Median price across the last 5 sales in HP18 9TQ: £915,000 (2025–2018).
Nearby sales in HP18 9TQ
23 South Hills, Brill, Aylesbury, HP18 9TQ
Sold Aug 2025
£295,10021 South Hills, Brill, Aylesbury, HP18 9TQ
Sold Apr 2024
£1,800,0005 South Hills, Brill, Aylesbury, HP18 9TQ
Sold May 2022
£785,0004a, South Hills, Brill, Aylesbury, HP18 9TQ
Sold Aug 2018
£915,00015 South Hills, Brill, Aylesbury, HP18 9TQ
Sold Jul 2018
£990,000
Versus other South Hills homes
On epc rating, 4 South Hills stands well clear of the street.
Price per m²
£3,871
Street avg £5,072
Floor Area
136 m²
Street avg 155 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
3.6 t/year
Street avg 7.4 t/year
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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
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
The Square — bus stop.
Closest school
0.6 km
Brill Church of England School. 2 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
45.0dB

Night-time· 23:00 – 07:00
36.2dB







