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21 Blackheath Grove, Wonersh, Guildford, GU5 0PU

1 planning record

Estimated value

£740,000

  • Since the 2006 sale (£356,500)+108%
  • Against GU5 0PU's recent median (£585,000)+26%

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

Learn about this valuation
Property type
Semi-detached
Habitable rooms
7
From EPC
Floor area
183 m²
1970 sq ft
Energy rating
E
Score 47
Council tax
Band E
Tenure
Owner Occupied
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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

£740,000

  • Against its 2006 sale (£356,500)+108%
  • Against GU5 0PU's recent median (£585,000)+26%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Blackheath Grove is modelled from its 183 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in GU5 0PU. 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

    183 m² from the EPC lodged in March 2016

  • Sales of this home

    2 sales recorded, the latest in 2006

  • Recent sales in GU5 0PU

    5 sales, median £585,000 (2026–2016)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: April 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.

21 Blackheath Grove valuation sits well clear of the typical sold price in this postcode.

Sales timeline

  1. 11 May 2006Most recent

    £356,500

    +25.1%over 4 years

  2. 2 November 2001

    £285,000

Median price across the last 5 sales in GU5 0PU: £585,000 (2026–2016).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Blackheath Grove, Wonersh, Guildford, GU5 0PU. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn 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 Blackheath Grove

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

21 Blackheath Grove is a semi-detached house in Wonersh, Guildford, Guildford (GU5 0PU). It has a recorded floor area of 183 m² (around 1970 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (March 2016) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 79), a 2-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected.

Untraded for 20 years, with the last transfer in May 2006. At 183 m² the property is well over the postcode median (138 m² across 10 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs). Across 2001–2006, sale prices on this property compounded at 5.1% per year. Today's modelled estimate of £740,000 sits 107.6% above the 2006 sale of £356,500. On a £-per-square-foot basis, the last sale (£181/sq ft) was about 45.7% below the postcode norm. One historical planning record sits against the property in 2013.

Before you decide

Everything you need to know about 21 Blackheath Grove

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

Larger development activity nearby

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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 Blackheath Grove's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 28 Mar 2026

Current Certificate
Mar 2016

EPC Rating

A
B
C
D
E
E47
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Poor
Windows
Average
CO2 Emissions
10.0 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 28 March 2026

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 21 Blackheath Grove, Wonersh, Guildford, GU5 0PU, sourced from the PlanIt planning register.

Council records include a two-storey extension at 21 Blackheath Grove.

1 application on record at 21 Blackheath Grove, Wonersh, Guildford, GU5 0PU

1decisions1extensions19documents6nearby
  1. Apr 2013
    ExtensionFull
    Outcome in report

    Extension: Two storey

    Erection of a two storey extension. (As amended by letter and plans received 28/03/2013).

    Documents
    19 docs on file
    Reference
    WA/2013/0200
    Full record in report

Unlock 21 Blackheath Grove, Wonersh, Guildford, GU5 0PU'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 6 notable nearby
  • The 19 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Blackheath Grove homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 21 Blackheath Grove lags the street by a wide margin.

Price per m²

£1,948

Street avg £4,316

Strongly below

Floor Area

183 m²

Street avg 123 m²

Strongly above

Habitable Rooms

7 rooms

Street avg 6 rooms

Strongly above

CO₂ Emissions

10.0 t/year

Street avg 4.9 t/year

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 Guildford district page.
Full Guildford report

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

Crime

37/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Blackheath Lane — bus stop.

Closest school

1.0 km

Tillingbourne Junior School. 5 schools nearby.

Nearest schools

  • Tillingbourne Junior SchoolPrimary982m
  • Bramley CofE Infant School and NurseryPrimary1.7km
  • Chilworth CofE (Aided) Infant SchoolPrimary1.7km
  • Wonersh and Shamley Green CofE Aided Primary SchoolPrimary1.8km

Nearest stops

  • Blackheath LaneBus stop150m
  • Wonersh CommonBus stop192m
  • Barnett LaneBus stop390m
  • Barnett HillBus stop648m

Most reported crime locally

  • Violence & Sexual Offences165 reports37%
  • Anti-social Behaviour68 reports15%
  • Criminal Damage & Arson47 reports11%
  • Other Theft37 reports8%

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 GU5 0PU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for GU5 0PU

Daytime· 07:00 – 23:00

45.1dB

Low
Night-time road noise heatmap for GU5 0PU

Night-time· 23:00 – 07:00

38.7dB

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

Mid 20th centurySemi-Detached HouseEPC EExtended multiple times (2+ extensions)

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

From £1,220 · 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.
£737k

1 Derryswood House, Cranleigh Road, Wonersh

GU5 0QZ

3 bed
£735k

1 Earlsfield, Stonards Brow, Shamley Green

GU5 0UY

3 bed1 bath
£770k

1 Barnett Close, Wonersh

GU5 0SB

4 bed2 bath
£711k

1 Barnett Villas, Barnett Lane, Wonersh

GU5 0RZ

4 bed
£705k

1 Chestnut Rise, Birtley Road, Bramley

GU5 0EU

£690k

1 Cypress Cottages, Stroud Common, Shamley Green

GU5 0SZ

3 bed1 bath
£895k

1 Bronlei Woods, Birtley Road, Bramley

GU5 0JJ

3 bed3 bath
£915k

1 Combe Farm Cottages, Thorncombe Street, Bramley

GU5 0NH

3 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 Blackheath Grove is modelled from its 183 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in GU5 0PU. 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 21 Blackheath Grove. 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 Blackheath Grove was lodged in March 2016 at band E and expired in March 2026, so a new one is needed to sell or let. 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 21 Blackheath Grove. 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 5 schools and 30 stops listed are measured in a straight line from GU5 0PU, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
21 Blackheath Grove is in council tax band E. 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 Blackheath Grove, Wonersh, Guildford, GU5 0PU. Each answer is also embedded as structured data for search engines.

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