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21a, Knowsley Road, Wilpshire, Blackburn, BB1 9PX

1 planning record

Estimated value

£566,000

  • Since the 2020 sale (£435,000)+30%
  • Against BB1 9PX's recent median (£256,500)+121%

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

Learn about this valuation
Property type
Detached
Bedrooms
4
Bathrooms
2
Floor area
266 m²
2863 sq ft
Energy rating
D
Score 64
Council tax
Band G
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

£566,000

  • Against its 2020 sale (£435,000)+30%
  • Against BB1 9PX's recent median (£256,500)+121%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21a is modelled from its 266 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in BB1 9PX. 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

    266 m² from the EPC lodged in October 2019

  • Sales of this home

    1 sale recorded, the latest in 2020

  • Recent sales in BB1 9PX

    5 sales, median £256,500 (2026–2024)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: January 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.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

  1. 14 May 2020Most recent

    £435,000

Median price across the last 5 sales in BB1 9PX: £256,500 (2026–2024).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21a, Knowsley Road, Wilpshire, Blackburn, BB1 9PX. The detail, evidence and what to ask about it are in the Risks 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 21a

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

21a is a four-bedroom detached house in Wilpshire, Blackburn, Blackburn (BB1 9PX). It has a recorded floor area of 266 m² (around 2863 sq ft), construction records dating it to 1983-1990 and council tax band G. The latest certificate (October 2019) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). Records show the property has been extended at some point in its history.

At 266 m² the property is well over the postcode median (105 m² across 29 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £566,000 is 30.1% above the 2020 sale price. One planning record on file: an extension refused in 2023. Last sale on file: £435,000 in May 2020.

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
  • Bathrooms2
  • EnsuiteYes

Outside

  • Private gardenRear
  • GarageDouble

Building

  • Previously extendedYes
Before you decide

Everything you need to know about 21a

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

A 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.

21a's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate
Oct 2019

EPC Rating

A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
10.1 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 22 October 2029

2 years remaining
Planning

Planning history

Applications and permits filed against 21a, Knowsley Road, Wilpshire, Blackburn, BB1 9PX, sourced from the PlanIt planning register.

A recent planning application at 21a was refused — worth checking the council file.

1 application on record at 21a, Knowsley Road, Wilpshire, Blackburn, BB1 9PX

1decisions1extensions12documents
  1. Jan 2023
    ExtensionFull
    Outcome in report

    Construction of an outbuilding in front garden.

    Documents
    12 docs on file
    Reference
    34700
    Full record in report

Unlock 21a, Knowsley Road, Wilpshire, Blackburn, BB1 9PX'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
  • The 12 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

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On the street

Versus other Knowsley Road homes

Four headline reads against 29 similar houses on this street, drawn from the latest EPC and Land Registry data.

On floor area, 21a stands well clear of the street.

Price per m²

£1,635

Street avg £2,034

Strongly below

Floor Area

266 m²

Street avg 127 m²

Strongly above

Habitable Rooms

8 rooms

Street avg 6 rooms

Strongly above

CO₂ Emissions

10.1 t/year

Street avg 5.1 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 Blackburn district page.
Full Blackburn report

Rail-style transport is unusually close for this postcode.

Crime

462/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Mayfair Crescent — bus stop.

Closest school

1.2 km

Salesbury Church of England Primary School. 11 schools nearby.

Nearest schools

  • Salesbury Church of England Primary SchoolPrimary1.2km
  • Roe Lee Park Primary SchoolPrimary1.4km
  • St Gabriel's Church of England Primary SchoolPrimary1.5km
  • Holy Souls Roman Catholic Primary School BlackburnPrimary1.6km

Nearest stops

  • Mayfair CrescentBus stop62m
  • Old Railway StationBus stop206m
  • Turning CircleBus stop250m
  • Knowsley RoadBus stop337m

Most reported crime locally

  • Violence & Sexual Offences2,581 reports35%
  • Anti-social Behaviour1,939 reports26%
  • Criminal Damage & Arson514 reports7%
  • Vehicle Crime481 reports7%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Late 20th centuryDetached HouseEPC DExtended multiple times (2+ extensions)

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

From £1,085 · 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.
£317k

1 Bryers Croft, Wilpshire

BB1 9JE

4 bed
£599k

1 Brooklyn Road, Clayton Le Dale

BB1 9PP

5 bed2 bath
£302k

1 Clifton Grove, Wilpshire

BB1 9PZ

4 bed
£290k

1 Brookview Close

BB1 9NT

4 bed2 bath
£439k

1 Court Grove, Clayton Le Dale

BB1 9HR

5 bed2 bath
£197k

1 Boxwood Street

BB1 9TW

4 bed1 bath
£394k

1 Albany Drive, Salesbury

BB1 9EH

5 bed3 bath
£247k

1 Beaver Close, Wilpshire

BB1 9LB

3 bed2 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 21a is modelled from its 266 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in BB1 9PX. 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 21a. 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 21a was lodged in October 2019 at band D and is valid until October 2029. 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 21a. 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 11 schools and 30 stops listed are measured in a straight line from BB1 9PX, not by walking route.
Council tax band
21a is in council tax band G. 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 21a, Knowsley Road, Wilpshire, Blackburn, BB1 9PX. Each answer is also embedded as structured data for search engines.

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