Either way there will be an impact on your garden whether that be damaged paving, holes in the grass, scuffed walls, scraped fences etc
There are some scaffolders who are less gracious than others but the nature of what they do will leave behind something
If you allow it then definitely take some comprehensive pictures before during and after, and have in writing from the neighbour that they will pay the remedial for any impact
Either way there will be an impact on your garden whether that be damaged paving, holes in the grass, scuffed walls, scraped fences etc
There are some scaffolders who are less gracious than others but the nature of what they do will leave behind something
If you allow it then definitely take some comprehensive pictures before during and after, and have in writing from the neighbour that they will pay the remedial for any impact