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Annex approval rate in North Northamptonshire

North Northamptonshire approved 84.1% of annex applications, based on 44 decisions analysed.

Last updated: August 2026

84.1%
annex approval rate
44
Annex decisions
37
Approved
7
Refused
93.8%
North Northamptonshire overall

Annex applications are refused more often than the North Northamptonshire average (93.8%), suggesting the council scrutinises these projects more closely.

How annex compares in North Northamptonshire

Annex (44 decided)
84.1%
North Northamptonshire all applications (5,317 decided)
93.8%

Planning a annex in North Northamptonshire?

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Other project types in North Northamptonshire

Rear Extension (688 decided)
93.6%
Garage / Parking (666 decided)
90.7%
Side Extension (396 decided)
90.7%
Extension (General) (327 decided)
94.5%
Outbuilding (196 decided)
90.8%
87.4%
Conservatory (146 decided)
96.6%
Front Extension (110 decided)
94.5%
Dormer (103 decided)
85.4%
New Build (98 decided)
85.7%
88.9%
Loft Conversion (52 decided)
88.5%
HMO (22 decided)
90.9%
Basement (10 decided)
90.0%
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