I think a few of your estimates seem a bit high:
Mobile phone contracts are pretty cheap here... the most expensive I've seen are £30-40 per month per person. I have an iphone 4 contract (100 minutes, 500 MB, unlimited texts) and I pay less than £20 per month (I only really use it for texting and the internet).
Also, TV/Broadband/phone packages are much cheaper here than in the US. I have been paying £40 per month for unlimited broadband, 200+ digital TV channels with Sky Plus (like TIVO) and an HD box, plus phone line rental and free evening and weekend calls... and I feel like that's too expensive and that I got a bad deal!!
Your food estimate seems very high as well. I live alone and cook most of my own meals, and I still spend way more on food than I should do... but I only spend about £150 per month on food.
Even when my parents were feeding 5 adults (themselves, plus me and my two brothers, who are sportsmen and eat loads of food), they were only spending about £400-500 on food each month.
Your council tax will vary depending on the property, as the amount you pay is based on the value of the individual property in 1991. In general it can range from less than £1,000 to about £2,500 per year. If you know any of the postcodes of the properties you are interested in you can look up the council tax bands for the properties online.
Utilities-wise, for the last 2 years I have been living alone in a 2-bed, 1 bath house (two floors, no double-glazing and wooden floors... so it was hard to warm up) and my utilities have come to about £70 per month in total for electricity, gas and water.