I will keep this simple.
1. If you are not filming in private property 
2. Your cast and crew does not exceed 4 in total 
3. You inform the relevant Borough.
|  | 
| Filming "Adambano in London" A total of 4 Cast & Crew. No tripod. | 
If you are less than five people, including participants and actors, 
you count as a small crew and the procedure for filming in London is 
quite straightforward.
Informing boroughs
Once you have identified the areas you wish to film at, you need to 
contact the relevant Borough Film Officer to advise them of your 
filming.
If you are using a handheld camera and your filming will not cause an
 obstruction then there is no restriction to filming on London’s public 
highway. In some boroughs this also extends to small crews with a 
tripod. No licence or any form of official permission is required.
Common law rights allow users of public highways to “pass and re-pass
 ... and to make reasonable use of it”. Section 137 of the Highways Act 
1980 restricts these rights where the use of the highway causes an 
“obstruction” to other users rights of free passage. If you are 
considered to be causing an obstruction then there is a risk that you 
will be stopped from filming.
If you think you are likely to cause an obstruction then you need to 
apply to film via the appropriate Local Authority, however we strongly 
recommend that you always inform the relevant Borough Film Service if 
you are filming on their streets. If the local authority is not aware 
that you will be filming in the area then you can be asked to stop.
If a member of the public complains and you don't have permission to 
film, then you may be asked to move on by police. Some Local Authorities
 provide Notices of No Objection for small crew filming.
Notices of no objection
Some Authorities offer the option to obtain a Notice of No 
Objection — essentially an informal letter confirming that, based on the
 information you've provided, the Local Authority has no objection to 
the filming going ahead.
Not all boroughs offer these Notices; with those that do, some provide them free of charge and others charge between £25-£100. In
 addition to providing you with the document some Local Authority Film 
Officer will check for any works in the area that might affect your 
shoot, and will notify the local police for you, if necessary.
Be aware that this notice does not provide a carte blanche. If 
your filming creates an unforeseen obstruction you can still be forced 
by the police to move on.
All crews using a tripod to film in the boroughs of Westminster and City of London must obtain a Notice of No Objection. Applications for small crews need to be made with a 
minimum of three days notice. Productions using handheld equipment do not need to obtain a Notice.
- Source: Film London 
For more Information about filming in London cLICk....