I work from home but from a garden office. Didn't need planning or building Regs but council came and inspected me for my SPMU and was given a certificate from them.
My council isn't interested in traffic as they say that's the highways department.
My buildings and contents insurance more than doubled even though no clients enter my house and sanctions are on that insurance, any burglary would have to be forced entry to be covered.
I have found out interestingly anyone running a business from home must have a water meter.
I did have a salon, and have just bought a small commercial property im intending to rent out ( just in case) but ive found there's more regulations/considerations for working from home rather than my commercial premises.