Commercial-to-Residential Conversions near you

Class MA of Part 3 of Schedule 2 to the Town and Country Planning (General Permitted Development) (England) Order 2015 permits development consisting of a change of use of a building and any land within its curtilage from a use falling within Class E of the Use Classes Order - commercial, business and service - to use as dwellinghouses within Class C3. Class E is broad: shops, financial and professional services, cafés and restaurants, offices, research and development, light industrial, gyms, nurseries, clinics and surgeries all sit within it.

The condition that survives and matters most is the use history. Development is not permitted unless the use of the building fell within one or more of the specified classes for a continuous period of at least two years prior to the date of the application for prior approval. That is a documentary question - leases, rating records, accounts - and it is the first thing to establish, because no amount of design work fixes a building that cannot evidence it.

Class MA is an England-only right created by an English order. Wales, Scotland and Northern Ireland run their own planning systems with their own permitted development rights and their own use classes, and a conversion outside England starts from a planning application unless a local equivalent applies.

Two of the original Class MA conditions no longer exist. Paragraphs (a) and (c) of MA.1 were omitted with effect from 5 March 2024 by the Town and Country Planning (General Permitted Development etc.) (England) (Amendment) Order 2024, and its explanatory note describes the effect precisely: Class MA was amended to remove the requirement that a building must have been vacant for a continuous period of at least three months immediately prior to the date of an application for prior approval, and to remove the floorspace upper limit for buildings changing use under the right.

Those two removals change what is viable. The vacancy requirement had meant deliberately emptying a building and losing its income before an application could even be made. The floorspace cap had kept larger buildings out of the right altogether. With both gone, an occupied commercial building of any size that meets the two-year use condition can be the subject of a prior approval application, which is a materially different commercial proposition.

It is worth checking the current text before relying on any of this. Class MA has been amended several times since it was inserted in 2021, including a change in January 2026 to terminology concerning the Building Safety Regulator, and permitted development rights are amended more often than most legislation.

Prior approval under Class MA is not a formality. Before beginning development the developer must apply to the local planning authority for a determination as to whether its approval is required as to a defined list of matters: transport impacts, particularly highway safety; contamination risks in relation to the building; flooding risks in relation to the building; impacts of noise from commercial premises on the intended occupiers; where the building is in a conservation area and the development involves a change of use of the whole or part of the ground floor, the impact of that change on the character or sustainability of the conservation area; the provision of adequate natural light in all habitable rooms of the dwellinghouses; the impact on intended occupiers of the introduction of residential use in an area the authority considers important for general or heavy industry, waste management, storage and distribution, or a mix of such uses; where the building is a nursery or health centre, the impact on the local provision of that service; and, where it applies, fire safety.

The natural light matter is the one that most often defeats an application, because commercial floorplates are deep and windows are where the shopfront or the office glazing happened to be. Daylight analysis submitted with the application is far more persuasive than a floor plan with windows drawn on it.

Paragraph W of Schedule 2 sets the procedure, including publicity and consultation, and it contains the timing rule everyone quotes. Development must not begin before one of three things happens: the applicant receives written notice from the authority that prior approval is not required; the applicant receives written notice giving prior approval; or 56 days expire following the date the application was received by the authority without the authority notifying the applicant whether prior approval is given or refused. Development under Class MA must then be completed within a period of three years starting with the prior approval date.

Planning permission, however it is obtained, says nothing about the technical standards. Regulation 5 of the Building Regulations 2010 defines a material change of use, and the first item on the list is that the building is used as a dwelling where previously it was not; the second is that the building contains a flat where previously it did not. A commercial-to-residential conversion is squarely within both.

Regulation 6 then sets out which requirements of Schedule 1 the work has to satisfy where such a change occurs, and the list is substantial: means of warning and escape comes first, with further requirements covering fire spread, structure in certain cases, resistance to moisture, sound insulation, ventilation, sanitation and hot water, drainage, combustion appliances and electrical safety, and additional provisions for buildings above a specified height and for flats. Whether the change affects the whole building or only part of it changes which requirements apply to what.

In practice that means the technical project is larger than the planning project. Sound insulation between new flats and between flats and any remaining commercial use, escape routes from a building never designed for sleeping accommodation, ventilation of internal rooms, and drainage brought to a plan that was drawn for a shop are the four that consistently consume budget. An early conversation with a local authority building control service or a registered building control approver is worth more at that stage than another set of layouts.

Conversion costs are driven by the gap between what the building is and what a home has to be. Floor-to-ceiling heights and how much of them the new services and acoustic floors consume, how deep the plan is and therefore how many habitable rooms can get natural light, what has to be done to form compartmentation and escape routes, how the drainage is arranged and whether new stacks can be run, the state of the external envelope and its thermal performance, whether the structure can take new openings for windows, and whether any part of the building stays in commercial use alongside the homes. Add the professional fees for daylight, acoustic and fire strategies, which on this kind of project are not optional extras.

LokalMatch is an introduction service. Describe the building and what you want to do with it once, with the postcode, and contractors and consultants working on conversions in your area will get in touch. Homeowners and property owners pay nothing to use it, while the pros pay for the requests that reach them. LokalMatch does not undertake the work, does not set prices, and does not vet, rank or recommend anyone who replies, so due diligence on their conversion experience and their insurance stays with you.