If you mean the physical buildings - they're numbered from 1 upwards - usually all the odd numbers are on one side of the street, with the evens on the opposite side.
If you mean phone number (since this was asked in the mobile phones section) - UK phone numbers have the format 0xxxx xxxxxx or 0xxx xxx xxxx
Not every house is numbered in the UK. Some properties are named instead of being numbered.
House of Fun
In the UK - dial 1471
lower house
If you're referring to the UK government - it's the House of Commons and the House of Lords.
Dial 011 44, then the full UK phone number minus its leading zero. For example, UK number 01632 456789 (or +44 1632 456789) is dialled as 011 44 1632 456789.
The average number of bedrooms in a house in the United States is about 3 bedrooms. However, this can vary depending on the region and type of housing.
For a house to be considered huge will depend upon where one is in the world. In the UK, for example, houses tend to be much smaller than in America. A large American house may well be considered huge in the UK. Arguably, a house with more than 5 bedrooms might be getting into huge territory.
2 - Beetlebum 1997 and Country House 1995
2 Country House (1995) Beetlebum (1997) Song 2 ended number 2 (ironicly)
An example of a valid mobile phone number might be +1 417 555-0123, except with an actual mobile phone number instead of the fictitious 555-0123. An example in the UK would be +44 7700 900123, which is the (fictitious) UK mobile number 07700 900123 written in international format. A valid mobile phone number is a real phone number that actually connects to a working mobile phone.
A house number. A house number. A house number. A house number.