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20a, Blackwell Avenue, Guildford, GU2 8LU

EPC B

Estimated value

£323,000

  • Since the 2024 sale (£405,000)-20%
  • Against GU2 8LU's recent median (£450,000)-28%

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
Floor area
67 m²
721 sq ft
Energy rating
B
Score 85
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

£323,000

  • Against its 2024 sale (£405,000)-20%
  • Against GU2 8LU's recent median (£450,000)-28%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 20a is modelled from its 67 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

    67 m² from the EPC lodged in July 2020

  • Sales of this home

    1 sale recorded, the latest in 2024

  • Recent sales in GU2 8LU

    5 sales, median £450,000 (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.

Sales timeline

  1. 12 August 2024Most recent

    £405,000

Median price across the last 5 sales in GU2 8LU: £450,000 (2025–2021).

Risks

What this page doesn't show

2 potential issues have already been flagged for 20a, 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 20a

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

20a is a semi-detached house in Guildford (GU2 8LU). It has a recorded floor area of 67 m² (around 721 sq ft). The latest certificate (July 2020) returns a high B (score 85), putting the home a stone's throw from an A rating.

Today's modelled estimate of £323,000 is 20.2% below the 2024 sale of £405,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£562/sq ft) was about 79.5% above the typical sold price in the postcode. At 67 m² it's 26.4% smaller than the typical home in the postcode (91 m² median across 25 EPCs). Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). Sold August 2024 for £405,000.

Before you decide

Everything you need to know about 20a

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.

20a's carbon output is low for the local stock.

Current Certificate
Jul 2020

EPC Rating

A
B
B85
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Good
Windows
Very Good
CO2 Emissions
1.0 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 28 July 2030

3 years remaining
Planning

Planning history

Applications and permits filed against 20a, Blackwell Avenue, Guildford, GU2 8LU, sourced from the PlanIt planning register.

20a 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.

20a outperforms the street on price per m² by a wide margin.

Price per m²

£6,045

Street avg £3,779

Strongly above

Floor Area

67 m²

Street avg 100 m²

Strongly below

CO₂ Emissions

1.0 t/year

Street avg 3.5 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 Guildford district page.
Full Guildford report

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 2 HomeBuyer Report

Semi-Detached HouseEPC B

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 £595 · 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.
£327k

1 Clover Road

GU2 8EY

£333k

1 Chapel House Close

GU2 8EE

£364k

1 Fairfield Close

GU2 8NB

£285k

1 Coachlads Avenue

GU2 8FH

£381k

1 Blackwell Avenue

GU2 8LU

£386k

1 Dunmore

GU2 8LA

£265k

1 Bargate Court

GU2 8EF

£401k

1 Barnwood Road

GU2 8JB

3 bed1 bath

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Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.

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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 20a is modelled from its 67 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 20a. 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 20a was lodged in July 2020 at band B and is valid until July 2030. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 20a. 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.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 20a, Blackwell Avenue, Guildford, GU2 8LU. Each answer is also embedded as structured data for search engines.

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