Something maybe a bit more helpful for Rob...

I've been skipping through the Unitary Development Plan for Lewisham. The reason that these types of development of existing single houses get through the process is that Lewisham has committed to increasing the number of 'housing units' by 11,000-odd by 2016 (including a mix of types from those aimed at single people to families). But one area of the UDP that *might* help you is in Chapter 5 "Housing" and the Part II Policy HSG 8 Backland and In-fill Development. I cant believe that the proposed development would not contravene:

"(e) on a road where additional on-street parking would not be permitted the development would not worsen any (on-street) parking problems;"

I presume that Waldram Park Road, as part of the South Circular, does not allow on-street parking - the side road alongside the house might but the address is Waldram Park Road. 2 spaces for 9 units seems low but might be backed up by TRN 26 on Car Parking provision (which seems to call only for 1 space per 5 units in dwellings with more than 3 units - also some get-out clauses re: Sustainable Living Areas and public transport provision). Actually, this probably isn't much use in an objection after all but I'll post it as it might be interesting to those who wonder how these proposals get through...

Still might be worth making a point of it and that you dont believe that only two cars will be attracted to a site with no on-street parking that potentially houses 13 adults.