Can a UK company have the same registered office, director's service address, and director's residential address?

I'm going through the process on the Companies House website to create a UK company (at http://www.companieshouse.gov.uk/promo/webincs/ ) and I've got to the page asking for "Details of new director", "Director's service address", and "Director's residential address". It won't let you select both of the following:

• The service address is 'same as' the company's registered office
• The residential address is 'same as' the service address

However, either one on their own is fine. Basically they're saying the director's official service address can be the same as the company's registered office, and the company's registered office can be the same as the director's residential address, but all 3 can't be the same at once. Surely if the director's residential address is the same as the registered office, it's a fair bet that that would be the best place to get hold of him with the service address? How do I complete the registration?

It is quite new and it is to protect the privacy of Directors, so the service address is public, but the residential address is confidential. If they are the same, it really defeats the purpose. The registered address is not related and can be the same or different.

For a small home-based business the registered address and the Director's address will be the same. For a more substantial business, the registered address and Director's service address will be the office, while the Director's residential address is kept confidential, but Companies House can still serve papers on you there if the company goes away. You may elect that your registered address is your accountant's address, but this is optional (in fact, having an accountant is optional, but that's another story).

As an aside, don't pay anyone for "prestigious" registered address "service", as it is a scam and only useful if you are homeless or travelling overseas without a base at home.