Over estimating floor space!

Well plans always look good on paper don't they, the time I have taken to draw my floor plans and put furniture into spaces, leaving room for Alice my 'trustee steed' to get through (my wheelchair is affectionately named Alice)  I have had my bed and wardrobes on every conceivable place as with all the other rooms and furniture. The first thing I am noticing is that the plans don't actually reflect the measurements, I am assuming this is normal. For example my bedroom says 4544mm so I thought it meant 4 meters and 54 centimeters 4 millimeters:

No my bedroom is 4420, which converts to 4 meters and forty two centimeters. Unfortunately this means I can only have a run of four meter wardrobes not four and a half meters. Not enough space for clothes I hear you say? actually as with most new builds these days there is no storage space included no little cupboards, or airing cupboard holding vast vats of towels and bedlinen, those places that are referred to commonly in Norfolk as 'out of the way' how many times do you hear someone say 'I will put that out of the way'

Well this pattern follows through the whole bungalow so now my carefully calculated plans are shot to pieces. And what does that mean? well I brought too much 'stuff' with me but know I have even less space to store it so we are way overcrowded. Let the culling begin!