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9 Blackwell Avenue, Guildford, GU2 8LU

Estimated value

£494,000

  • Since the 1996 sale (£72,000)+586%
  • Against GU2 8LU's recent median (£425,000)+16%

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
Semi-detached
Bedrooms
4
Bathroom
1
Floor area
123 m²
1324 sq ft
Energy rating
C
Score 72
Council tax
Band D
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

£494,000

  • Against its 1996 sale (£72,000)+586%
  • Against GU2 8LU's recent median (£425,000)+16%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 9 Blackwell Avenue is modelled from its 123 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in GU2 8LU. 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

    123 m² from the EPC lodged in April 2021

  • Sales of this home

    1 sale recorded, the latest in 1996

  • Recent sales in GU2 8LU

    5 sales, median £425,000 (2025–2021)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: November 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull 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 9 Blackwell Avenue was the lowest on Land Registry record across the postcode.

Risks

What this page doesn't show

2 potential issues have already been flagged for 9 Blackwell Avenue, Guildford, GU2 8LU. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn 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

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Overview

About 9 Blackwell Avenue

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

9 Blackwell Avenue is a four-bedroom semi-detached house in Guildford (GU2 8LU). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (April 2021) shows a C (score 72). When first surveyed in February 2010 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Poor to Average and window efficiency went from Very Poor to Average. The recommended improvements would push it to B (score 82).

Held since June 1996 — that's 30 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 123 m² the property is well over the postcode median (89 m² across 25 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £494,000 sits 586.1% above the 1996 sale of £72,000. On a £-per-square-foot basis, the last sale (£54/sq ft) was about 83.6% below the postcode norm.

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
  • Bathrooms1
  • Open-plan layoutYes
  • Dining roomYes
  • EnsuiteYes

Outside

  • Private gardenRear
  • GarageYes
Before you decide

Everything you need to know about 9 Blackwell Avenue

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

Signs of HMO activity in the areaLarger 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.
Current Certificate(1 of 3)
Apr 2021

EPC Rating

A
B
C
C72
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.8 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 30 April 2031

4 years remaining

Property Improvements

Changes detected from historical EPC data

Feb 2011from Feb 2010
Windows
SingleFull Double

Single glazing replaced with double or better glazing

Apr 2021from Feb 2011
EPC improved fromD60toC72
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Roof Insulation
PartialInsulated

Roof insulation improved

Planning

Planning history

Applications and permits filed against 9 Blackwell Avenue, Guildford, GU2 8LU, sourced from the PlanIt planning register.

9 Blackwell Avenue has no planning applications on record.

36

But the area is active

36 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus other Blackwell Avenue homes

Four headline reads against 25 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 9 Blackwell Avenue runs well behind the street norm.

Price per m²

£585

Street avg £4,027

Strongly below

Floor Area

123 m²

Street avg 98 m²

Strongly above

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

3.8 t/year

Street avg 3.4 t/year

On par
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.

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

Crime

196/mo

Falling year-on-year across the wider district.

Nearest stop

0.0 km

Blackwell Avenue — bus stop.

Closest school

0.5 km

Guildford Grove Primary School. 13 schools nearby.

Nearest schools

  • Guildford Grove Primary SchoolPrimary479m
  • Kings College GuildfordSecondary620m
  • Wood Street Infant SchoolPrimary800m
  • St Joseph's Catholic Primary SchoolPrimary1.2km

Nearest stops

  • Blackwell AvenueBus stop18m
  • Little PlattBus stop217m
  • RickyardBus stop276m
  • HomestallBus stop298m

Most reported crime locally

  • Violence & Sexual Offences1,394 reports44%
  • Anti-social Behaviour347 reports11%
  • Public Order316 reports10%
  • Criminal Damage & Arson257 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 GU2 8LU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for GU2 8LU

Daytime· 07:00 – 23:00

45.8dB

Low
Night-time road noise heatmap for GU2 8LU

Night-time· 23:00 – 07:00

37.2dB

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

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

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

From £1,020 · Includes VAT

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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.
How the estimate is made
The estimate for 9 Blackwell Avenue is modelled from its 123 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in GU2 8LU. 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 9 Blackwell Avenue. 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 9 Blackwell Avenue was lodged in April 2021 at band C and is valid until April 2031. 3 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 9 Blackwell Avenue. 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 16 months, which places each incident at an approximate point. The 13 schools and 30 stops listed are measured in a straight line from GU2 8LU, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
9 Blackwell Avenue is in council tax band D. 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 9 Blackwell Avenue, Guildford, GU2 8LU. Each answer is also embedded as structured data for search engines.

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