Unless you're planning on staying for 3 months or more you may not find much decent short-let accommodation in Central London in that price range.
Possibly your best option for a short stay is a budget hotel - a Premier Inn or Travelodge is generally clean/comfortable and can be found next to most major stations for £69/night.
If you are staying longer then have a look at http://www.nestoria.co.uk/embankment/property/rent#dyn:/embankment/property/rent/maxprice-375 about 7 years ago
I have used this site previously to book hotels. You may find one at your price.
http://www.eurobookings.com/united-kingdom-gb/reservations-london-hotels.html about 7 years ago
Hi Dr. Peter,
Yes you would definitely find cheap accommodations in London. If you search the web you will find there are many tours on offer for singles, couples and groups.
Looking on the Internet and on message boards are great places to start your search, as it would give you an idea about the rates as well. You could also use estate agents in London - http://www.plazaestates.co.uk/properties-to-rent/st-james-square-st-james-sw1/ref-txrbdr - that specialize in rentals as well as properties for sale too. almost 5 years ago
It depends what you need from the accommodation. If you just want somewhere to sleep I'd recommend the Travellodge at Waterloo. It's very basic but it's cheap and central.
It's within easy walking distance of Waterloo which is well placed for any major London attractions.
But it's a very basic hotel. There are no frills at all so it's not somewhere you'd want hang out if you decided you wanted a lazy evening in. But then why would you do that in London anyway :)
Enjoy. over 4 years ago