How does one go about finding shared office space, specifically in the UK?

Free Options

1. You have a friend that either owns a company and has a spare desk he is willing to let you use until its taken.
2. To introduce some variety during your work day you could try to work from different coffee shops for part of that day a few times per week.

Paid Options

1. Hubs or Workspaces. You pay membership and you get things like free wifi, a desk in an open plan office and access to meeting rooms. I suspect you will mostly find startup people in those, which might mean it will be more social (haven't tried). Examples:

   • http://www.techhub.com/
   • http://www.theiw.org/
   • http://club.workspacegroup.co.uk/
   • http://the-hub.net
   • ...

2. Shared office space sites where people offer desks/part of an office for a monthly rent. The difference to the above is that you will be sharing probably with small-to-mid companies. Examples:

   • http://www.officegenie.co.uk
   • http://www.sparedesk.com
   • I am sure there are others if not better sites (maybe even gumtree might have some on there).

P.S: Something amusing to check out as well: http://theoatmeal.com/comics/working_home

Look for incubators as well. Here in Cambridge we have a few science parks and innovation centers which boast a range of services from desk rental (hotdesking) to small office spaces and fully managed incubator premises. As well as co-working, check out the incubator facilities and search for "shared office space [city name]". St Johns Innovation center is one example.

Some cities are just better than others for startups. I know you didn't ask this, but if you really have the flexibility of moving to any city in the UK bear in mind that some cities are really well set up to cater for startups. Cambridge has a variety of organisations like the Cambridge Network, Cambridge Angels, CHASE, CETC and others (all beginning with C). The Business Weekly reports heavily on startup and business stuff in this region. Added to that are the aforementioned science parks and business parks, the University and academic culture. If you are looking for motivation, inspiration, other like-minded startup founders a place like Cambridge would be ideal. Furthermore, not trying to sell the place or anything, we have a high concentration of software, high-tech and biotech companies here. If you can't get over to Silicon Valley, head here to the Silicon Fen instead :)

The point here is that regardless of whether you find Cambridge attractive or not, there is a big difference in startup-support that you may get from city to city. Definitely worthwhile doing the research. Whilst you'll find events like this in Cambridge, I'm not sure you'll find the same sort of thing in {insert random UK city name here}.

I worked at home for 3 years building my company then moved to co-working style space, then upgraded to a cubicle. The psychological benefits are incalculable. I still work at home too, but knowing that work and life are separate helps me do better work. There's something incredibly profound about being around others while working.

If at all possible, do transition to a workspace of some kind. As long as the environment isn't like a coffee-house/grown-up playspace, the benefits far outweigh the cost.

Look for "coworking" space. One site to start of is http://wiki.coworking.info/w/page/16583831/FrontPage, and that's is a directory of coworking spaces all over the world http://wiki.coworking.info/w/page/29303049/Directory (there are several in the UK).

Not sure if by the time of my reply you already have your office? Anyways will tell you that there are many companies who provide fully serviced offices which include everything you mentioned in your post plus lot's of other options. All you need is to search for shared serviced offices and the location you need.