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21 Allonby Way, Aylesbury, HP21 7JA

1 planning record
Property type
Detached
Bedrooms
4
Floor area
135 m²
1453 sq ft
Energy rating
D
Score 65
Council tax
Band F
Tenure
Owner Occupied
Overview

About 21 Allonby Way

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

21 Allonby Way is a four-bedroom detached house in Aylesbury (HP21 7JA). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (September 2020) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since August 2011. Between certificates, roof efficiency went from Poor to Average and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 80).

Today's modelled estimate of £648,000 is 22.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£365/sq ft) was about 25.7% above the typical sold price in the postcode. One planning record on file: an extension refused in 2012. Most recent transfer: March 2021 at £530,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms4
  • Dining roomYes
  • Utility roomYes
  • EnsuiteYes
  • StudyYes

Outside

  • GarageDouble
Before you decide

Everything you need to know about 21 Allonby Way

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

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.
Current Certificate(1 of 3)
Sept 2020

EPC Rating

A
B
C
D
D65
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.9 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Sept 2020from Aug 2011
Hot Water
Main (No Stat)Main System

Hot water system upgraded

Roof Insulation
PartialInsulated

Roof insulation improved

Low Energy Lighting
79%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Late 20th centuryDetached HouseEPC DExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,155 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Allonby Way, Aylesbury, HP21 7JA, sourced from the PlanIt planning register.

1 application on record at 21 Allonby Way, Aylesbury, HP21 7JA

1decisions1extensions2documents3nearby
  1. Sept 2012
    ConservatoryAmendment
    Outcome in report

    Non-material amendment to planning approval 00/02126/APP - Change of one wall of conservatory from framed glass to brick

    Extension
    Documents
    2 docs on file
    Reference
    00/A2126/NON
    Full record in report

Unlock 21 Allonby Way, Aylesbury, HP21 7JA'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 3 notable nearby
  • The 2 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Current estimate

£648,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2021)

£530,000

Recorded with HM Land Registry.

Sales timeline

  1. 8 March 2021Most recent

    £530,000

Median price across the last 5 sales in HP21 7JA: £625,500 (2025–2017).

On the street

Versus other Allonby Way homes

Four headline reads against 14 similar houses on this street, drawn from the latest EPC and Land Registry data.

Habitable Rooms for 21 Allonby Way lags the street by a wide margin.

Price per m²

£3,926

Street avg £3,788

On par

Floor Area

135 m²

Street avg 129 m²

Above

Habitable Rooms

5 rooms

Street avg 7 rooms

Strongly below

CO₂ Emissions

4.9 t/year

Street avg 5.0 t/year

On par
Before you decide

Everything you need to know about 21 Allonby Way

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

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£602k

1 Allonby Way

HP21 7JA

4 bed
£560k

1 Ash Grove

HP21 7PU

4 bed
£421k

1 Cam Mead

HP21 7DZ

4 bed1 bath
£527k

1 Canford Court

HP21 7NZ

5 bed3 bath
£479k

1 Byron Road

HP21 7LU

3 bed1 bath
£433k

1 Claremont Close

HP21 7NR

3 bed
£393k

1 Braden Close

HP21 7JU

3 bed1 bath
£355k

1 Clinton Crescent

HP21 7JN

3 bed1 bath
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

Crime

3/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

RC Schools — bus stop.

Closest school

0.2 km

St Joseph's Catholic Infant School. 28 schools nearby.

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 HP21 7JA from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for HP21 7JA

Daytime· 07:00 – 23:00

50.7dB

Low
Night-time road noise heatmap for HP21 7JA

Night-time· 23:00 – 07:00

41.6dB

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

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Allonby Way, Aylesbury, HP21 7JA. Each answer is also embedded as structured data for search engines.