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21 South Hills, Brill, Aylesbury, HP18 9TQ

3 planning records

Estimated value

£1,765,000

  • Since the 2024 sale (£1,800,000)-2%
  • Against HP18 9TQ's recent median (£785,000)+125%

Newest record on this page: November 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Floor area
124 m²
1335 sq ft
Energy rating
C
Score 79
Council tax
Band G
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£1,765,000

  • Against its 2024 sale (£1,800,000)-2%
  • Against HP18 9TQ's recent median (£785,000)+125%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 South Hills is modelled from its 124 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in HP18 9TQ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    124 m² from the EPC lodged in November 2025

  • Sales of this home

    1 sale recorded, the latest in 2024

  • Recent sales in HP18 9TQ

    5 sales, median £785,000 (2025–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: August 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 of 3 applicationsFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Latest sale on 21 South Hills was the highest on Land Registry record across the postcode.

Sales timeline

  1. 9 April 2024Most recent

    £1,800,000

Median price across the last 5 sales in HP18 9TQ: £785,000 (2025–2018).

Risks

What this page doesn't show

2 potential issues have already been flagged for 21 South Hills, Brill, Aylesbury, HP18 9TQ. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • A planning decision worth checkingIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About 21 South Hills

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

21 South Hills is a detached house in Brill, Aylesbury, Aylesbury (HP18 9TQ). It has a recorded floor area of 124 m² (around 1335 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (November 2025) shows a C (score 79), near the top of the C band. When first surveyed in September 2010 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Poor to Very Good and window efficiency went from Poor to Very Good. The recommended improvements would push it to B (score 88). Main heating runs on electricity: electricity, unspecified tariff.

3 planning records sit against the property, 2 approved, 1 refused. Past consents include partial demolition and new windows, meaningful when judging how the property has evolved. At 124 m² it's 20.5% smaller than the typical home in the postcode (156 m² median across 11 EPCs). Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). On a £-per-square-foot basis, the last sale (£1,349/sq ft) was about 336.1% above the typical sold price in the postcode. Last sale on file: £1,800,000 in April 2024.

Before you decide

Everything you need to know about 21 South Hills

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearbyA planning decision worth checking

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

21 South Hills's carbon output is low for the local stock.

Current Certificate(1 of 3)
Nov 2025

EPC Rating

A
B
C
C79
D
E
F
G
Main Heating
Heat Pump
Main Fuel
Electric
Hot Water
Average
Windows
Very Good
CO2 Emissions
0.5 t/year
Occupancy
—

Certificate validity

Valid until 27 November 2035

9 years remaining

Property Improvements

Changes detected from historical EPC data

May 2023from Sept 2010
EPC improved fromE47toD55
Hot Water
AveragePoor

Hot water efficiency decreased

Windows
PoorGood

Window efficiency improved

Walls
Very PoorGood

Wall insulation improved

Floor Insulation
UninsulatedInsulated

Floor insulation added or improved

Low Energy Lighting
0%71%

More low energy lighting installed

Nov 2025from May 2023
EPC improved fromD55toC79
Heating System
Gas BoilerHeat Pump

Heat pump installed, significantly improving energy efficiency

Main Fuel
OilElectric

Changed to a more efficient fuel source

Heating Controls
FullFull Control

Heating controls upgraded for better temperature management

Hot Water
PoorAverage

Hot water efficiency improved

Windows
Mostly DoubleHigh Performance

High performance glazing installed

Wall Insulation
Uninsulated StoneInsulated Cavity

Cavity wall insulation installed

Roof
PoorVery Good

Roof insulation improved

Low Energy Lighting
71%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 21 South Hills, Brill, Aylesbury, HP18 9TQ, sourced from the PlanIt planning register.

A recent planning application at 21 South Hills was refused — worth checking the council file.

3 applications on record at 21 South Hills, Brill, Aylesbury, HP18 9TQ

3decisions67documents2nearby
Flagged:Demolition
  1. Mar 2006
    RenovationFull
    Outcome in report

    Installation of new bay window

    New Windows
    Documents
    7 docs on file
    Reference
    06/00241/APP
    Full record in report
  2. More recent applications — locked
  3. AmendmentDecision
  4. DemolitionDecision

Unlock 21 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 (3 on record)
  • All 3 applications on this property in full, plus 2 notable nearby
  • The 67 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other South Hills homes

Four headline reads against 11 similar houses on this street, drawn from the latest EPC and Land Registry data.

21 South Hills outperforms the street on price per m² by a wide margin.

Price per m²

£14,516

Street avg £3,552

Strongly above

Floor Area

124 m²

Street avg 157 m²

Strongly below

CO₂ Emissions

0.5 t/year

Street avg 7.7 t/year

Strongly above

Years Held

2 years

Street avg 10 years

Strongly below
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Aylesbury district page.
Full Aylesbury report

Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.

Crime

77/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.

Nearest schools

  • Brill Church of England SchoolPrimary560m
  • Oakley Church of England Combined SchoolPrimary2.5km

Nearest stops

  • The SquareBus stop343m
  • Church StreetBus stop385m
  • TramhillBus stop768m
  • Brill TurnBus stop2.0km

Most reported crime locally

  • Violence & Sexual Offences444 reports48%
  • Other Theft106 reports12%
  • Criminal Damage & Arson88 reports10%
  • Anti-social Behaviour83 reports9%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around HP18 9TQ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for HP18 9TQ

Daytime· 07:00 – 23:00

45.0dB

Low
Night-time road noise heatmap for HP18 9TQ

Night-time· 23:00 – 07:00

36.2dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraDetached HouseEPC CPre-1919 build

Because the property was built before 1919, we believe a Level 3 building survey should be considered.

From £1,795 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£1.2m

1 Carters Lane, Long Crendon

HP18 9DE

5 bed
£973k

1 Church Road, Ickford

HP18 9HZ

£935k

1 Bernewode Close, Long Crendon

HP18 9BY

£887k

1 Ashtree Cottages, Thame Road, Chilton

HP18 9LJ

5 bed
£759k

1 Bishops Way, Worminghall

HP18 9GG

£742k

1 Blanes Close, Long Crendon

HP18 9GD

£723k

1 Burts Lane, Long Crendon

HP18 9AJ

3 bed2 bath
£688k

1 Bridge Road, Ickford

HP18 9HU

5 bed

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 21 South Hills is modelled from its 124 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in HP18 9TQ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 21 South Hills. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 South Hills was lodged in November 2025 at band C and is valid until November 2035. 3 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 3 applications are matched to 21 South Hills. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 12 months, which places each incident at an approximate point. The 2 schools and 9 stops listed are measured in a straight line from HP18 9TQ, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
21 South Hills is in council tax band G. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 South Hills, Brill, Aylesbury, HP18 9TQ. Each answer is also embedded as structured data for search engines.

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