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21 Blackwell Avenue, Guildford, GU2 8LU

Property type
Semi-detached
Bedrooms
5
Bathrooms
2
Floor area
100 m²
1076 sq ft
Energy rating
C
Score 70
Council tax
Band D
Tenure
Owner Occupied
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Overview

About 21 Blackwell Avenue

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

21 Blackwell Avenue is a five-bedroom semi-detached house in Guildford (GU2 8LU). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (October 2021) shows a C (score 70). When first surveyed in July 2011 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85).

Today's modelled estimate of £454,000 sits 89.2% above the 2011 sale of £240,000. On a £-per-square-foot basis, the last sale (£223/sq ft) was about 32.6% below the postcode norm. On the market in September 2011 and unlisted since — roughly 15 years. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count.

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

  • Bedrooms5
  • Bathrooms2
  • EnsuiteYes

Outside

  • Private gardenYes
Before you decide

Everything you need to know about 21 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

Pick your report · from £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 2)
Oct 2021

EPC Rating

A
B
C
C70
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.5 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 25 October 2031

5 years remaining

Property Improvements

Changes detected from historical EPC data

Oct 2021from Jul 2011
EPC improved fromD61toC70
Hot Water
Main (No Stat)Main System

Hot water system upgraded

Windows
SecondaryFull Double

Windows upgraded, improving insulation

Low Energy Lighting
30%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centurySemi-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 £695 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Blackwell Avenue, Guildford, GU2 8LU, sourced from the PlanIt planning register.

21 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.

Price

Sales history & valuation

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

21 Blackwell Avenue valuation sits well clear of the typical sold price in this postcode.

Current estimate

£454,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2011)

£240,000

Recorded with HM Land Registry.

Sales timeline

  1. 15 September 2011Most recent

    £240,000

Median price across the last 5 sales in GU2 8LU: £425,000 (2025–2021).

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.

Price per m² for 21 Blackwell Avenue lags the street by a wide margin.

Price per m²

£2,400

Street avg £3,945

Strongly below

Floor Area

100 m²

Street avg 99 m²

Above

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

3.5 t/year

Street avg 3.4 t/year

On par
Before you decide

Everything you need to know about 21 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

Pick your report · from £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.
£517k

1 Caxton Gardens

GU2 8AX

4 bed
£480k

1 Coppice Close

GU2 8JL

3 bed2 bath
£492k

1 Beckingham Road

GU2 8BN

3 bed1 bath
£401k

1 Barnwood Road

GU2 8JB

3 bed1 bath
£460k

1 Aldershot Road

GU2 8AE

2 bed
£422k

1 Cathedral View

GU2 8FD

£419k

1 Fairfield Rise

GU2 8DG

£406k

1 Broomfield

GU2 8LQ

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.

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
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Blackwell Avenue, Guildford, GU2 8LU. Each answer is also embedded as structured data for search engines.