Hi there

The place where you can get the info from (for free) is http://www.voa.gov.uk. It's a list of all the council taxed properties (and properties that pay business rates too)

Click on this link http://www.voa.gov.uk/cti/InitS.asp?lcn=0

And enter 'se23' into the postcode box. You'll see it will come up with the three local authorities that are part of the SE23 area. If you choose, lewisham (for example), chose 'current' in the band status box, then just press 'go' and a list of all the houses and roads with come up...

Hope this helps!