Two-storey rear extension planning approval rate in Blackburn
80% of 724 decided two-storey rear extension applications in Blackburn were approved.
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
A similar project nearby can help you understand the council's decisions. Its outcome does not establish what will be acceptable at your address.
80%
Approval rate, all years, from 724 decided
724
decided two-storey rear extension applications in Blackburn: 576 approved, 148 refused
Unknown
Recent rate, decided since 2022: no decided, fewer than 8
How to read these rates
These are historical outcomes for the applications in our archive, not the chance of approval for your property. Compare the same project type and read the decided count alongside each percentage.
About the planning data
Rate = approved divided by approved plus refused, using the decisions in our classified archive. Rates are withheld as unknown where fewer than 8 records of that project type were decided. Withdrawn applications are excluded.
Recent means records dated 2022 or later. Records without a year are excluded from the recent rate but remain in the all-years figure. Historical coverage varies by council, and duplicate application references may remain in the archive.
Approval rates from 2,343,419 decisions we classified across 181 councils in England. The wider 20.6 million application catalogue is accessible through PlanIT; it is not the dataset used to calculate these percentages.
Read the full methodology and coverage notes.
Project types and outcomes are classified from council records. Check the original application and decision notice before relying on an individual example. A page rebuild does not mean every council record has just been refreshed.
Example two-storey rear extension decisions in Blackburn
These examples deliberately include approved and refused applications where available. They are not a representative sample or a list of the latest decisions. Look up each reference on the council's planning search to read the plans and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 10.92/0336 | Unknown | Approved | Erection of first floor rear extension. 13 Bog Height Road, Darwen BB3 0AW |
| 10.92/0988 | Unknown | Refused | Two storey extension to the rear of existing Religious Centre. 209 Preston New Road, Blackburn. BB2 6BN. |
| 10/00/0824 | Unknown | Approved | Extension of shop use into rear ground floor rooms, formation of 1st floor flat and construction of two storey rear extension 194 Audley Range Blackburn BB1 1TG |
| 10/01/0045 | Unknown | Approved | Erection of a two storey rear extension for Kitchen/Dining and Bedroom over, side porch, rear garage and rebuilding of side elevation 4 Hope Terrace Blackburn BB2 6EY |
| 10/01/0474 | Unknown | Refused | Two storey rear extension for kitchen and bedroom 421 Haslingden Road Guide Blackburn BB1 2NG |
| 10/01/0684 | Unknown | Refused | Two Storey Rear Extension 41 Yew Tree Drive Blackburn BB2 7DW |
About the planning data
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
Other project types in Blackburn
- Single-storey rear extension 89%, 2,474 decided
- Wraparound extension 88%, 249 decided
- Side extension 86%, 1,021 decided
- Loft conversion and dormer 75%, 694 decided
- Rooflight 98%, 98 decided
- Outbuilding and garden room 85%, 198 decided
- Porch 88%, 554 decided
- Garage conversion 89%, 263 decided
- Basement 86%, 88 decided
- Window and door 91%, 567 decided