King's Lynn builds first and asks later at 1.8x the national rate. And the council still approves 93% of what it decides.
927 planning applications were submitted to Kings Lynn council in 2025. Of those decided, 93.1% were approved, well above the national rate of 87.6%. Just 6.9% were refused, about 1 in 15, against 12.4% nationally. One figure stands out sharply: retrospective applications, where work was done before consent was sought, ran at 6.8% of the mix, 1.8 times the national rate of 3.7%.
The year in one line
King's Lynn submits retrospective applications at 1.8 times the national rate and listed-building works at 2.2 times the norm, yet the council approves more than 9 in 10 of all applications it decides, making this one of the easier places in England to win planning permission.
What King's Lynn Is Building
Extensions lead, with a retrospective and heritage edge.
Home extensions were the most common application submitted to Kings Lynn in 2025, at 32.0% of all submissions, just above the national share of 29.1%. The two categories that set King's Lynn apart are retrospective applications, at 6.8% against a national rate of 3.7%, and listed-building works, at 5.2% against a national average of 2.4%. Together they point to a town with a substantial historic core and a habit of getting on with work before seeking consent.
Applications submitted to Kings Lynn in 2025, by project type (2024-2025 pooled counts shown).
The retrospective habit
King's Lynn submits retrospective applications, where work was carried out before consent was sought, at 1.8 times the national rate. At 6.8% of the application mix, it is the town's sharpest statistical outlier.
The council verdict
A high approval rate, a low refusal rate.
Of the 1,769 applications decided by Kings Lynn across 2024-2025, 1,647 were approved and 122 refused. That gives an approval rate of 93.1% and a refusal rate of 6.9%, about 1 in 15. The national refusal rate is 12.4%, almost double. King's Lynn is one of the more permissive planning authorities in the country.
About 1 in 15 King's Lynn applications was turned down.
applications were refused, a 6.9% refusal rate. The national figure is 12.4%, about 1 in 8. King's Lynn approves more than 9 in 10 of all applications it decides.
King's Lynn vs The National Norm
Retrospective and heritage applications define the town.
Set King's Lynn's application mix against the national average and three categories stand out. Annexes appear at 3.3% of applications, 2.9 times the national share of 1.1%. Listed-building works appear at 5.2%, 2.2 times the national share of 2.4%. And retrospective applications run at 6.8%, 1.8 times the national rate of 3.7%. Home extensions and demolition track the national norm closely.
King's Lynn submits annex applications at 2.9 times the national rate. With 64 applications in the period and listed-building works running at 2.2 times the norm, the town has a distinctive pattern of heritage and outbuilding projects.
Each bar is King's Lynn's share of applications; the marker is the national share. Retrospective and listed-building works are the town's defining outliers.
Meanwhile, the market
Prices held alongside the building work.
Permission may be easy to win here, but the market kept moving with it: King's Lynn homes changed hands at a steady pace in the latest full year.
King's Lynn's planning data has a clear signature. The council approves more than 9 in 10 applications and refuses fewer than half the national rate. But the real story is in the mix: retrospective applications at 1.8 times the national rate, listed-building works at 2.2 times, and annex consents at nearly 3 times. For anyone planning work in the Kings Lynn area, the numbers say permission is comparatively easy to win.
Where the numbers come from
Planning Data
Applications submitted to Kings Lynn in 2025, classified from each application's published description. Rates and shares are computed over the pooled 2024-2025 window for stability; volume figures are per year.
Decision Rates
Approval rate is approvals as a share of approvals plus refusals across 2024-2025. The national benchmarks are computed the same way across all decided applications in England and Wales.
Sales Data
HM Land Registry Price Paid Data for the King's Lynn area, the latest full year's completions, with growth measured against the previous year.
The Real Applications
Open the planning applications behind the numbers.
These are real applications submitted to Kings Lynn in 2025, from retrospective consents and annex conversions to listed-building works and refusals. Open any one to see its full record.
2 Hare House Station Road, Docking PE31 8LS
Listed-building consent was granted for heritage works, reflecting King's Lynn's listed-building application rate running at 2.2 times the national share.
See this property's full record20 Rushmead Close, South Wootton PE30 3LY
A plan for a detached garage was turned down, one of the roughly 1 in 15 applications the council refused.
See this property's full record15 Kings Avenue PE30 5NS
A single-storey rear extension with internal alterations, the most common project type in King's Lynn, was approved.
See this property's full record27 Tennyson Avenue PE30 2QG
Permission was granted to convert a house into five flats with a loft extension, one of the larger schemes in the year.
See this property's full recordButtercup Cottage St Andrews Lane, Congham PE32 1DS
An annex was approved for separation from its main house, one of 64 annex applications in the area, running at 2.9 times the national rate.
See this property's full record26 Gelham Manor, Dersingham PE31 6HN
A one-bed single-storey annex in the rear garden was granted permission.
See this property's full recordCurious about a home in King's Lynn?
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