Permitted development right
Development within the curtilage of a dwellinghouse
| Field | Value | Fact links |
|---|---|---|
| Reference | I1-1977 | Facts |
| Prefix | permitted-development-right | Facts |
| Name | Development within the curtilage of a dwellinghouse | Facts |
| Dataset | Permitted development right | no fact link |
| Organisation | Ministry of Housing, Communities & Local Government | no fact link |
| Start date | 1988-12-05 | no fact link |
| End date | no fact link | |
| Entry date | 2025-10-20 | Facts |
| Typology | category | no fact link |
| Dataset name | Facts | |
| Notes | None | Facts |
| Description | The enlargement improvement or other alteration of a dwellinghouse so long as: (a) the cubic content of the original dwellinghouse (as ascertained by external measurement) is not exceeded by more than 50 cubic metres or one-tenth whichever is the greater, subject to a maximum of 115 cubic metres: (b) the height of the building as so enlarged altered or improved does not exceed the height of the highest part of the roof of the original dwellinghouse; (c) no part of the building as so enlarged altered or improved projects beyond the forewardmost part of any wall of the original dwellinghouse which fronts on a highway: Provided that the erection of a garage, stable loose-box or coach-house within the curtilage of the dwellinghouse shall be treated as the enlargement of the dwellinghouse for all purposes of this permission including the calculation of cubic contents. | Facts |
| Documentation url | https://www.legislation.gov.uk/uksi/1977/289/pdfs/uksi_19770289_en.pdf | Facts |
| Permitted development right part | I | Facts |
| Permitted development right class | 1 | Facts |
Contents
{
"reference": "I1-1977",
"prefix": "permitted-development-right",
"name": "Development within the curtilage of a dwellinghouse",
"dataset": "permitted-development-right",
"organisation-entity": "600001",
"start-date": "1988-12-05",
"end-date": "",
"entry-date": "2025-10-20",
"typology": "category",
"geometry": "",
"point": "",
"entity": 11500206,
"dataset-name": "",
"notes": "None",
"description": "The enlargement improvement or other alteration of a dwellinghouse so long as: (a) the cubic content of the original dwellinghouse (as ascertained by external measurement) is not exceeded by more than 50 cubic metres or one-tenth whichever is the greater, subject to a maximum of 115 cubic metres: (b) the height of the building as so enlarged altered or improved does not exceed the height of the highest part of the roof of the original dwellinghouse; (c) no part of the building as so enlarged altered or improved projects beyond the forewardmost part of any wall of the original dwellinghouse which fronts on a highway: Provided that the erection of a garage, stable loose-box or coach-house within the curtilage of the dwellinghouse shall be treated as the enlargement of the dwellinghouse for all purposes of this permission including the calculation of cubic contents.",
"documentation-url": "https://www.legislation.gov.uk/uksi/1977/289/pdfs/uksi_19770289_en.pdf",
"permitted-development-right-part": "I",
"permitted-development-right-class": "1"
}© Crown copyright and database right 2025
Licensed under the Open Government Licence v.3.0.
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