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12 Leonards Gate, Grendon Underwood, Aylesbury, HP18 0WA

Notable views1 planning record

Estimated value

£605,000

  • Since the 2021 sale (£550,000)+10%
  • Against HP18 0WA's recent median (£650,000)-7%

Newest record on this page: June 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Bedrooms
4
Bathrooms
2
Floor area
125 m²
1345 sq ft
Energy rating
C
Score 75
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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

£605,000

  • Against its 2021 sale (£550,000)+10%
  • Against HP18 0WA's recent median (£650,000)-7%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 12 Leonards Gate is modelled from its 125 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP18 0WA. 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

    125 m² from the EPC lodged in November 2018

  • Sales of this home

    2 sales recorded, the latest in 2021

  • Recent sales in HP18 0WA

    5 sales, median £650,000 (2026–2019)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: June 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull 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.

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

Sales timeline

  1. 5 February 2021Most recent

    £550,000

    +3.8%over 2 years

  2. 14 December 2018

    £529,950

Median price across the last 5 sales in HP18 0WA: £650,000 (2026–2019).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 12 Leonards Gate

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

12 Leonards Gate is a four-bedroom detached house in Grendon Underwood, Aylesbury, Aylesbury (HP18 0WA). It has a recorded floor area of 125 m² (around 1345 sq ft). The latest certificate (November 2018) shows a C (score 75), near the top of the C band. The recommended improvements would push it to B (score 86). Main heating runs on lpg. Other recorded features include notable views.

One planning record on file: an extension approved in 2023. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. Across 2018–2021, sale prices on this property compounded at 1.7% per year. Today's modelled estimate of £605,000 is 10% above the 2021 sale price. Last sale on file: £550,000 in February 2021. 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
  • Bathrooms2
  • Dining roomYes
  • Utility roomYes
  • EnsuiteYes
  • StudyYes

Outside

  • Private gardenRear
  • GarageYes
  • Notable viewsYes
Before you decide

Everything you need to know about 12 Leonards Gate

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

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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.
Current Certificate
Nov 2018

EPC Rating

A
B
C
C75
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Poor
Windows
Very Good
CO2 Emissions
2.0 t/year
Occupancy
—

Certificate validity

Valid until 30 November 2028

2 years remaining
Planning

Planning history

Applications and permits filed against 12 Leonards Gate, Grendon Underwood, Aylesbury, HP18 0WA, sourced from the PlanIt planning register.

1 application on record at 12 Leonards Gate, Grendon Underwood, Aylesbury, HP18 0WA

1decisions1extensions11documents
  1. Feb 2023
    Garage ConversionFull
    Outcome in report

    Extension: Single storey · Rear of property

    Householder application for proposed single storey rear extension and partial garage conversion

    Extension
    Documents
    11 docs on file
    Reference
    22/03776/APP
    Full record in report

Unlock 12 Leonards Gate, Grendon Underwood, Aylesbury, HP18 0WA'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
  • The 11 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Leonards Gate homes

Four headline reads against 13 similar houses on this street, drawn from the latest EPC and Land Registry data.

12 Leonards Gate is notably below the street on epc rating.

Price per m²

£4,400

Street avg £4,148

Strongly above

Floor Area

125 m²

Street avg 123 m²

On par

CO₂ Emissions

2.0 t/year

Street avg 1.9 t/year

On par

Years Held

6 years

Street avg 6 years

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

0.2 km

Oak Tree Cottages — bus stop.

Closest school

1.2 km

Grendon Underwood School. 1 school nearby.

Nearest schools

  • Grendon Underwood SchoolPrimary1.2km

Nearest stops

  • Oak Tree CottagesBus stop156m
  • Butler's FarmBus stop471m
  • Darleys CloseBus stop827m
  • CrossroadsBus stop900m

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 0WA from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for HP18 0WA

Daytime· 07:00 – 23:00

43.3dB

Low
Night-time road noise heatmap for HP18 0WA

Night-time· 23:00 – 07:00

36.1dB

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 2 HomeBuyer Report

Detached HouseEPC C

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £895 · 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.
£657k

1 Beeley Street

HP18 0GZ

5 bed3 bath
£676k

1 Bernards Close, Chearsley

HP18 0BX

3 bed2 bath
£457k

1 Bakery Close, Grendon Underwood

HP18 0SS

3 bed1 bath
£447k

1 Brandy Street

HP18 0YN

3 bed2 bath
£408k

1 Averdal Drive

HP18 0UQ

3 bed2 bath
£535k

1 Baker Street, Waddesdon

HP18 0LG

2 bed
£648k

1 Barons Court, Baker Street, Waddesdon

HP18 0LG

£312k

1 Alma Street

HP18 0FU

2 bed2 bath

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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 12 Leonards Gate is modelled from its 125 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in HP18 0WA. 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. 2 sales are recorded for 12 Leonards Gate. 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 12 Leonards Gate was lodged in November 2018 at band C and is valid until November 2028. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 12 Leonards Gate. 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 1 school and 15 stops listed are measured in a straight line from HP18 0WA, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 12 Leonards Gate, Grendon Underwood, Aylesbury, HP18 0WA. Each answer is also embedded as structured data for search engines.

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