Permitted development: Permitted Development Limits

The Permitted Development Limits carries 18 published figures read from 7 sources' own pages, from 7 to 56 day, read 17 October 2026.

Curtilo sells its own paid plan in this category (our pricing). It is not counted here: every figure in this index is another provider's own published price, read from its own page.

7 to 56 day Range of the published figures 18 published figures, not one market: read the rows
7 Sources with a figure of 21 read in full, 18 Oct 2026
7 of 21 Sources read that publish one 33% publish a figure at all
  1. GPDO 2015 Sch 2 Part 3 (changes of use, Classes G-MA)56 day
  2. GPDO 2015 Sch 2 Part 1 Class A (enlargement of a dwellinghouse)42 day
  3. MHCLG technical guidance: permitted development rights for householders42 day
  4. GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28 day
  5. GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28 day
  6. GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28 day
  7. GOV.UK Planning Practice Guidance: when is permission required28 day
  8. GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)21 day
  9. GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)21 day
  10. GPDO 2015 Sch 2 Part 1 Class A (enlargement of a dwellinghouse)21 day
  11. GPDO 2015 Sch 2 Part 1 Class AA (additional storeys)21 day
  12. GPDO 2015 Sch 2 Part 1 Class AA (additional storeys)21 day
One figure per source, highest first; the top 12 of 20.
Table view
RowValue
GPDO 2015 Sch 2 Part 3 (changes of use, Classes G-MA)56 day
GPDO 2015 Sch 2 Part 1 Class A (enlargement of a dwellinghouse)42 day
MHCLG technical guidance: permitted development rights for householders42 day
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28 day
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28 day
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28 day
GOV.UK Planning Practice Guidance: when is permission required28 day
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)21 day
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)21 day
GPDO 2015 Sch 2 Part 1 Class A (enlargement of a dwellinghouse)21 day
GPDO 2015 Sch 2 Part 1 Class AA (additional storeys)21 day
GPDO 2015 Sch 2 Part 1 Class AA (additional storeys)21 day
  1. 921 to 25
  2. 25 to 28
  3. 428 to 32
  4. 32 to 35
  5. 35 to 39
  6. 239 to 42
Where the 18 published figures fall, day, in six equal bands from the lowest to the highest.
Bands
BucketValue
21 to 259 sources
25 to 280 sources
28 to 324 sources
32 to 350 sources
35 to 390 sources
39 to 422 sources

7 of the 21 named sources read in full publish a figure; 14 publish none, read 17 October 2026.

Every figure, with its source

One row per source: the figure the source's own page publishes, the page, and the day it was read. A figure that is not on a page we read is not on this one.

SourceFigureRead
GPDO 2015 Sch 2 Part 3 (changes of use, Classes G-MA)56day2026-10-17
GPDO 2015 Sch 2 Part 1 Class A (enlargement of a dwellinghouse)42day2026-10-17
MHCLG technical guidance: permitted development rights for householders42day2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28day2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28day2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)28day2026-10-17
GOV.UK Planning Practice Guidance: when is permission required28day2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)21day2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)21day2026-10-17
GPDO 2015 Sch 2 Part 1 Class A (enlargement of a dwellinghouse)21day2026-10-17
GPDO 2015 Sch 2 Part 1 Class AA (additional storeys)21day2026-10-17
GPDO 2015 Sch 2 Part 1 Class AA (additional storeys)21day2026-10-17
GPDO 2015 Sch 2 Part 3 (changes of use, Classes G-MA)21day2026-10-17
GPDO 2015 Sch 2 Part 3 (changes of use, Classes G-MA)21day2026-10-17
GPDO 2015 Sch 2 Part 20 (new dwellinghouses: upward extension and demolition-and-rebuild)21day2026-10-17
GPDO 2015 Sch 2 Part 20 (new dwellinghouses: upward extension and demolition-and-rebuild)21day2026-10-17
GOV.UK Planning Practice Guidance: when is permission required8week2026-10-17
GOV.UK Planning Practice Guidance: when is permission required8week2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)7day2026-10-17
GPDO 2015 Sch 2 Part 6 (agricultural and forestry development)7day2026-10-17
The sentence each figure was read from (20)

Read in full, publishes no figure

14 named sources were read in full on the dates shown and print no usable figure. They are counted, never filled in.

Methodology

Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2).

7 of the 21 named sources that could be read published a usable figure; 14 published none and are recorded as not published, never filled in; 1 could not be read (blocked, dead or unreachable) and count nowhere.

The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in day (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 18 candidate sentence(s) were refused by a reviewer with the reason recorded.

The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): ONE table of every permitted-development class in England (GPDO 2015 Schedule 2, Parts 1, 3, 6 and 20 as amended), a row per class carrying its numeric limits (height, depth, ground cover, floorspace, unit count, hectare and distance thresholds), its conditions, whether prior approval is required and on what matters, and the determination clock - joined to the amending SI and the date each limit last moved.

Nobody publishes that table: legislation.gov.uk publishes the classes one crossheading at a time with no numbers extracted, the technical guidance narrates Part 1 only, and the commercial sites paraphrase.

The derived figures are the count of classes in force, the count amended in the last 24 months, the distribution of prior-approval clocks (28, 42 and 56 days), and a changed-since diff on every numeric limit at each amendment.

18 candidate sentences on these pages were refused by a reviewer; each refusal and its reason is recorded in the review ledger.

Sources (22)
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The Permitted Development Limits carries 18 published figures read from 7 sources' own pages, from 7 to 56 day, read 17 October 2026.

7 of the 21 named sources read in full publish a figure; 14 publish none, read 17 October 2026.

Cite as: "Curtilo Permitted Development Limits", updated 2026-10-18, https://curtilo.com/datasets/permitted-development-limits/.

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21 to 42 day

7 published figures, Permitted Development Limits, across 7 sources, read 17 October 2026

Source: Curtilo Permitted Development Limits

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