September 15, 2026

Property Development Guide: Airbnb Planning Permission and the London 90-Day Rule

Short-term letting can produce attractive returns, but it can also create a significant Property Development and planning risk. In particular, converting a home into a full-time Airbnb-style rental is not always treated the same way as ordinary residential use.


For London properties, letting an entire home for more than 90 days in a calendar year can require planning permission. Elsewhere in the UK, the position depends on the local planning authority, its policies and the effect a proposed short-term let could have on local housing and the surrounding community.


Key Takeaways

  • In London, whole-property short-term lets exceeding 90 days in a calendar year require planning permission.
  • A full-time Airbnb-style operation may be treated as a sui generis use rather than ordinary residential use.
  • Councils assess effects on housing supply, neighbourhood character and the concentration of visitor accommodation.
  • Local planning policies vary, so every Property Development proposal needs location-specific checks.


Table of Contents

When does an Airbnb become a planning issue?


A house or flat used as an ordinary home is generally within Use Class C3, covering a dwellinghouse. However, where an entire property is used for short-term accommodation on an ongoing basis, its use may no longer be considered normal residential occupation.


In planning terms, a full-time short-term let can be treated as a sui generis use. This means it sits in its own category rather than fitting neatly within a standard use class. The practical consequence is important: changing from a residential home to this type of short-term accommodation may require a planning application.


For anyone considering Property Development through serviced accommodation, the key question is not simply whether a property can be advertised online. It is whether the scale and nature of the letting amounts to a material change of use.

The 90-day rule for short-term lets in London


London has a clear restriction aimed at preventing residential homes from being quietly converted into permanent visitor accommodation. An entire property can generally be used for short-term letting for up to 90 days in a calendar year without needing planning permission.


If the property is let for more than 90 days, planning permission is required. The rule is aimed at whole-property lettings rather than an owner renting out an individual room.


What the rule means in practice

  • Occasional short-term letting: Letting an entire home for no more than 90 days in the calendar year falls within the stated threshold.
  • Full-time Airbnb operation: Letting the entire property beyond 90 days can become a change of use requiring planning permission.
  • Room rental: Renting out a room is treated differently from operating the entire property as visitor accommodation.
  • Multiple booking platforms: Using platforms other than Airbnb does not remove the planning issue. The relevant factor is the use of the property and the total period of short-term letting.


Some major booking platforms restrict London listings once they approach the 90-day threshold. However, platform controls should not be treated as a substitute for understanding planning obligations, particularly if a property is promoted through several channels.

Why councils regulate Airbnb-style Property Development


Short-term accommodation has grown because it can offer owners stronger income than a standard assured shorthold tenancy. It can also appeal to guests who prefer local, self-contained accommodation over a conventional hotel.


From a council’s perspective, however, widespread conversion of homes into short-term lets can reduce the supply of permanent housing. Local authorities must plan for housing need and demonstrate that they can meet housing targets over their plan period. Losing ordinary homes to visitor accommodation makes that task more difficult.


This is why Property Development proposals involving short-term lets are assessed beyond the financial return to one owner. Councils may consider the broader effect on:

  • Available housing stock for local residents.
  • The affordability and accessibility of homes.
  • The balance of family homes, smaller units and visitor accommodation.
  • The residential character of streets and neighbourhoods.
  • Local tourism needs and the amount of hotel or visitor accommodation already present.

How short-term lets can affect residential areas


A residential neighbourhood is shaped by people living there on a settled basis. When homes are used more like hotels, the pattern of occupation can change quickly. Frequent guest turnover may alter the sense of a stable local community, particularly where several properties in a small area are used for short-term stays.


Planning authorities are therefore concerned not only with the loss of one dwelling, but also with precedent and cumulative impact. Allowing one conversion may make it harder to resist similar proposals nearby. Over time, this could materially change an area’s residential character and reduce the number of homes available to long-term occupiers.


This issue is especially acute in high-demand cities such as London, where housing pressure is substantial. A proposal that removes a dwelling from long-term residential use may be difficult to justify where local planning policy prioritises housing retention.

Is planning permission easier to obtain outside London?


There is no single UK-wide answer. Planning policy and enforcement activity vary between local authorities. Some areas may be less affected by short-term lets, while others may have strong housing pressures, tourism policies or local restrictions that make applications more challenging.


Outside London, a short-term-let proposal may be more acceptable in some circumstances, but it should never be assumed that permission is unnecessary. Property Development decisions must be assessed against the policies of the specific council area.


Before committing to a purchase, conversion or operating model, check whether the council has policies dealing with:

  • Short-term lets or holiday lets.
  • Bed and breakfast accommodation.
  • Hotels, guesthouses and visitor accommodation.
  • Loss of residential dwellings.
  • Residential amenity and neighbourhood character.
  • Concentrations or density limits for visitor accommodation.

What a planning authority is likely to assess


A planning application for a permanent short-term let will be judged on local policy rather than a simple national formula. Nevertheless, several themes are likely to be central to the decision.


1. Loss of housing

The primary concern is often whether the proposal removes a home from the long-term housing market. In an area with a shortage of homes, this can be a serious obstacle to planning permission.


2. The character of the local area

Authorities will consider whether the proposal changes a settled residential area into one with hotel-like activity. The more intensive the short-term use, the more difficult it may be to argue that the character of the area will remain protected.


3. Existing visitor accommodation

Local policy may identify locations where hotels or similar accommodation are supported. It may also limit the amount of such accommodation in certain neighbourhoods. A proposal that meets a genuine tourism need may be assessed differently from one that displaces scarce housing without clear planning benefits.


4. Cumulative impact

The number of existing short-term lets in the locality can matter. Even where a single conversion seems modest, planning authorities may be concerned about the combined effect of multiple similar uses.

Due diligence checklist before converting a property to short-term accommodation


Short-term lets should be assessed before, not after, committing to an investment. Use this checklist as part of a responsible Property Development appraisal.

  1. Identify the current use. Confirm whether the property is in ordinary residential use as a house or flat.
  2. Define the intended operating model. Establish whether the whole property will be let, how often and for how many total days each calendar year.
  3. Check the 90-day threshold if the property is in London. Treat any plan exceeding that threshold as a planning matter requiring attention.
  4. Review local plan policies. Search the council’s planning policy documents for short-term lets, hotels, holiday accommodation, housing retention and residential character.
  5. Assess the local housing context. Consider whether the authority is likely to resist removal of dwellings from long-term housing supply.
  6. Look for concentration policies. Some councils may assess how many comparable visitor accommodation units already exist nearby.
  7. Consider a planning application before operating. If the use is likely to be treated as a change of use, do not rely on the fact that the property can be listed online.
  8. Plan for enforcement risk. A lack of contact from the council does not establish that the use is lawful.

Common mistakes with Airbnb Property Development


Assuming a higher return makes the use acceptable

Potential rental income does not determine whether a change of use is acceptable in planning terms. The authority’s focus is likely to be housing supply, local policy and the effect on the community.


Confusing a short-term let with ordinary residential letting

A long-term residential tenancy supports continued use of the property as a home. A continually changing stream of guests can be materially different, particularly where the entire property is operated as commercial-style accommodation.


Believing a listing platform resolves planning compliance

Platform booking limits or listing rules do not decide whether planning permission is needed. The property’s real-world use and total letting period remain the crucial considerations.


Relying on weak enforcement as proof of legality

Short-term lets can be difficult for councils to monitor, especially where properties are promoted across different services. That practical difficulty does not remove the underlying planning risk. Enforcement priorities may also increase as local authorities develop better ways to identify unapproved short-term accommodation.


Ignoring the local plan

Property Development is location-specific. A strategy that appears viable in one authority area may conflict with policy in another. Always assess the relevant council’s adopted policies before proceeding.

How to approach a planning application for a full-time short-term let


Where planning permission is required, the proposal needs to address the issues that matter to the local authority rather than focusing only on demand from guests or projected income.


A well-considered application should explain the intended use clearly and consider how it relates to local policies on housing, tourism and neighbourhood character. It should also acknowledge whether the proposal would take an existing home out of residential use and why the authority should regard that outcome as acceptable.


In high-demand residential areas, especially in London, permission may be challenging because the loss of housing is likely to carry substantial weight. In other areas, the outcome may differ if policy supports visitor accommodation or the council considers that the proposal will not undermine local housing needs.

Property Development takeaway for Airbnb hosts and investors


Operating a short-term let is not merely a booking or management decision. It can be a change-of-use issue with planning consequences. In London, the central threshold is 90 days per calendar year for whole-property short-term lets. Above that level, planning permission is required.


Across the rest of the country, assess each proposal against the local authority’s policies and the particular circumstances of the site. The safest approach is to identify the intended use early, understand its effect on housing supply and residential character, and resolve planning requirements before turning a dwelling into a full-time short-term rental business.

Frequently Asked Questions

Do I need planning permission to use my London flat as an Airbnb?

If you let the entire flat on a short-term basis for more than 90 days in a calendar year, planning permission is required. Shorter whole-property lettings fall within the stated 90-day threshold.

What is the Airbnb 90-day rule in London?

The rule limits short-term letting of an entire London property without planning permission to 90 days in a calendar year. Letting beyond that threshold requires planning permission.

Does renting out one room require the same planning permission?

The restriction discussed here targets whole-property short-term lets. Renting out a room is treated differently from converting an entire home into short-term visitor accommodation.

Can I avoid the planning rules by advertising on a different platform?

No. The planning issue concerns how the property is actually used, not which website or service is used to obtain bookings.

Why are councils concerned about short-term lets?

Councils are concerned that full-time short-term lets can remove homes from long-term housing supply, affect local affordability and alter the character of residential communities.

PREVIOUSNEXT
Top Trends in Commercial Architecture: What to Expect in 2023

Join our Newsletter

Subscribe to our monthly newsletter and get updates and industrial insights delivered to your inbox.

Keep Me Updated

Back to top