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4, OBSERVATORY ROAD, BLACKBURN, BB2 3HE - £183,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

4 OBSERVATORY ROAD is a large extended semi-detached house of 100m², built sometime between 1930 and 1949, which could now be worth an estimated £214,404. It was last sold for £183,000 in September 2022, which was around 17% above the average September 2022 semi-detached price in the Blackburn with Darwen local authority area. The most recent EPC inspection was August 2022, where the current energy rating was D, and the potential energy rating was C.

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4 OBSERVATORY ROAD Sold Prices

Land registry data shows three sales for 4 OBSERVATORY ROAD since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Blackburn with Darwen local authority area for the corresponding sale date. All of the three 4 OBSERVATORY ROAD sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2022
16 SEP
£183,000£156,339
up arrow
17% above HPI
2022
16 SEP
£183,000£156,339
up arrow
17% above HPI
2000
10 NOV
£60,000£40,761
up arrow
47% above HPI

What might 4 OBSERVATORY ROAD be worth now?

4 OBSERVATORY ROAD might now be worth an estimated £214,404.

This is based on house price inflation of 17.2%, between September 2022 and May 2026, for semi-detached houses, in the Blackburn with Darwen local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 17.2% inflationary increase is applied to the most recent sale price for 4 OBSERVATORY ROAD of £183,000 on 16th September 2022. For the value to have increased from £183,000 to £214,404 over the four years and four months to May 2026, the following assumptions must hold true:

  • The value of 4 OBSERVATORY ROAD has moved in line with the HPI for semi-detached houses in the Blackburn with Darwen local authority area.
  • The September 2022 sale price of £183,000 represented a fair market value for the property.
  • The size, condition, and specification of 4 OBSERVATORY ROAD has not materially changed since September 2022.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is 4 OBSERVATORY ROAD?

4 OBSERVATORY ROAD is 100m², which includes one extension, according to the EPC inspection conducted in August 2022. This puts it in the largest 30% of semi-detached houses in Blackburn, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Blackburn, and where 4 OBSERVATORY ROAD lies on this distribution: 74% of semi-detached houses are smaller than 4 OBSERVATORY ROAD, and 26% of semi-detached houses are larger. Note that EPC data is not available for all properties in Blackburn.

4, OBSERVATORY ROAD, BLACKBURN, BB2 3HE: Size of property relative to semi-detached houses in Blackburn

4 OBSERVATORY ROAD: Plot

4 OBSERVATORY ROAD sits on a plot of roughly 1.0 acres, or 4,240m².

Where is 4 OBSERVATORY ROAD?

4 OBSERVATORY ROAD is located in BLACKBURN, in the BB2 postcode district.

All property sales on OBSERVATORY ROAD

Most recent sales first:

Full data available
2025
19 SEP
£185,000
Limited data available
2025
28 MAY
£110,000
Limited data available
2025
31 MAR
£175,999
Full data available
2024
22 JUL
£185,000
Limited data available
2024
31 MAY
£190,000
Limited data available
2024
26 APR
£162,000
Full data available
2024
30 JAN
£170,000
Limited data available
2023
19 MAY
£111,000
Limited data available
2022
16 SEP
£183,000
Limited data available
2022
16 SEP
£183,000
Full data available
2022
1 APR
£143,000
Full data available
2021
27 AUG
£80,000
Limited data available
2021
23 JUL
£119,000
Full data available
2021
7 JUN
£119,950
Limited data available
2020
12 NOV
£395
Full data available
2020
22 MAY
£120,000
Limited data available
2019
19 DEC
£135,000
Full data available
2019
21 JUN
£117,000
Full data available
2019
23 APR
£120,000
Full data available
2019
7 JAN
£108,000
Full data available
2018
7 SEP
£130,000
Limited data available
2016
22 APR
£73,250
Limited data available
2015
2 SEP
£64,000
Limited data available
2015
29 MAY
£81,000
Full data available
2014
6 JAN
£84,950
Full data available
2012
20 JUL
£105,000
Full data available
2011
8 AUG
£70,000
Full data available
2010
20 DEC
£81,000
Full data available
2007
13 APR
£112,500
Full data available
2006
9 JUN
£123,000
Full data available
2006
9 JUN
£117,000
Full data available
2006
28 APR
£117,000
Limited data available
2006
16 FEB
£93,000
Full data available
2005
21 OCT
£115,000
Limited data available
2005
28 JUL
£106,000
Full data available
2004
27 APR
£115,000
Limited data available
2003
30 MAY
£69,000
Full data available
2003
5 FEB
£58,000
Full data available
2002
1 NOV
£63,500
Limited data available
2001
30 AUG
£38,000
Limited data available
2001
29 JUN
£44,000
Full data available
2001
25 MAY
£43,000
Full data available
2001
26 JAN
£49,000
Limited data available
2000
10 NOV
£60,000
Limited data available
2000
14 MAR
£49,500
Limited data available
2000
10 MAR
£46,000
Limited data available
1998
2 NOV
£35,000
Full data available
1998
9 OCT
£30,000
Full data available
1997
29 MAY
£25,500
Full data available
1996
18 OCT
£34,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Source: Energy Performance of Buildings Data: England and Wales
Licence: Ordnance Survey and Royal Mail Copyright and Database Right Notice.
Licence: Open Government Licence v3.0.
Source: INSPIRE Polygons
Copyright statement: This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use.
Licence: Open Government Licence v3.0.