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20 Blackhall Road, Cambridge, CB4 3NJ

3 sales on record1 planning record

Estimated value

£336,000

  • Since the 2022 sale (£365,000)-8%
  • Against CB4 3NJ's recent median (£360,000)-7%

Newest record on this page: May 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
Habitable rooms
3
From EPC
Floor area
57 m²
614 sq ft
Energy rating
C
Score 69
Council tax
Band C
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

£336,000

  • Against its 2022 sale (£365,000)-8%
  • Against CB4 3NJ's recent median (£360,000)-7%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 20 Blackhall Road is modelled from its 57 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CB4 3NJ. 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

    57 m² from the EPC lodged in May 2025

  • Sales of this home

    3 sales recorded, the latest in 2022

  • Recent sales in CB4 3NJ

    5 sales, median £360,000 (2022–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: September 2022Latest 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.

Price for 20 Blackhall Road has grown more than fourfold since the 1996 starting point.

Sales timeline

  1. 30 June 2022Most recent

    £365,000

    +386.7%over 24 years

  2. 7 August 1997

    £75,000

    +37.6%over 1 year

  3. 16 May 1996

    £54,500

Median price across the last 5 sales in CB4 3NJ: £360,000 (2022–2018).

Risks

What this page doesn't show

2 potential issues have already been flagged for 20 Blackhall Road, Cambridge, CB4 3NJ. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn report
  • A planning decision worth checkingIn 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 20 Blackhall Road

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

20 Blackhall Road is a semi-detached house in Cambridge (CB4 3NJ). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (May 2025) shows a C (score 69), just inside the C band. When first surveyed in January 2022 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to B (score 86).

Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Across 1996–2022, sale prices on this property compounded at 7.6% per year. On a £-per-square-foot basis, the last sale (£595/sq ft) was about 86.1% above the typical sold price in the postcode. Most recent transfer: June 2022 at £365,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2023.

Before you decide

Everything you need to know about 20 Blackhall Road

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

Signs of HMO activity in the areaA planning decision worth checking

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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 2)
May 2025

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.3 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 24 May 2035

8 years remaining

Property Improvements

Changes detected from historical EPC data

May 2025from Jan 2022
EPC improved fromE54toC69
Hot Water
Main (No Stat)Main System

Hot water system upgraded

Low Energy Lighting
0%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 20 Blackhall Road, Cambridge, CB4 3NJ, sourced from the PlanIt planning register.

A recent planning application at 20 Blackhall Road was refused — worth checking the council file.

1 application on record at 20 Blackhall Road, Cambridge, CB4 3NJ

1decisions23documents9nearby
  1. May 2023
    New BuildFull
    Outcome in report

    Proposed Detached Dwelling.

    Council
    Cambridge City Council
    Documents
    23 docs on file
    Reference
    23/00713/FUL
    Full record in report

Unlock 20 Blackhall Road, Cambridge, CB4 3NJ'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 9 notable nearby
  • The 23 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

On the street

Versus other Blackhall Road homes

Four headline reads against 9 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 20 Blackhall Road stands well clear of the street.

Price per m²

£6,404

Street avg £3,837

Strongly above

Floor Area

57 m²

Street avg 72 m²

Below

Habitable Rooms

3 rooms

Street avg 4 rooms

Below

CO₂ Emissions

2.3 t/year

Street avg 3.1 t/year

Above
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cambridge district page.
Full Cambridge report

Crime

411/mo

Falling year-on-year across the wider district.

Closest school

0.6 km

Orchard Park Community Primary School. 18 schools nearby.

Nearest schools

  • Orchard Park Community Primary SchoolPrimary553m
  • St Laurence Catholic Primary SchoolPrimary669m
  • Mayfield Primary SchoolPrimary851m
  • Arbury Primary SchoolPrimary1.0km

Most reported crime locally

  • Violence & Sexual Offences1,620 reports30%
  • Shoplifting844 reports16%
  • Anti-social Behaviour775 reports14%
  • Criminal Damage & Arson364 reports7%

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 CB4 3NJ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for CB4 3NJ

Daytime· 07:00 – 23:00

53.9dB

Low
Night-time road noise heatmap for CB4 3NJ

Night-time· 23:00 – 07:00

44.7dB

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 2 HomeBuyer Report

Late 20th centurySemi-Detached BungalowEPC 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 £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.
£338k

1 Albert Mews, Greens Road

CB4 3EF

2 bed1 bath
£319k

1 Carlyle Road

CB4 3DN

£383k

1 Chelsea Mews, Bermuda Road

CB4 3JY

2 bed1 bath
£274k

1 Chatsworth Avenue

CB4 3LT

2 bed1 bath
£427k

1 Arthur Street

CB4 3BX

£438k

1 Belmore Close

CB4 3NN

3 bed1 bath
£439k

1 Canterbury Close

CB4 3QQ

£460k

1 Blanford Walk

CB4 3NQ

3 bed1 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 20 Blackhall Road is modelled from its 57 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CB4 3NJ. 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. 3 sales are recorded for 20 Blackhall Road. 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 20 Blackhall Road was lodged in May 2025 at band C and is valid until May 2035. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 20 Blackhall Road. 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 13 months, which places each incident at an approximate point. The 18 schools and 0 stops listed are measured in a straight line from CB4 3NJ, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
20 Blackhall Road is in council tax band C. 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 20 Blackhall Road, Cambridge, CB4 3NJ. Each answer is also embedded as structured data for search engines.

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