I have a conventional concave cornice and I get plenty of cobwebs in the 10mm step out from the wall plaster (but not so much the step out from the ceiling plaster, or maybe it doesn't show so much there). If you are replacing the ceiling I would go with a shadowline rather than square-set which will show every wobble in your plaster or paint. I don't think it is feasible to install a shadowline into an existing ceiling (which will usually have a ragged edge under the existing cornice) but I could be wrong...

Don't get me wrong, I'm not advocating volume build in ANY way....there's actually little positive I can say about it except they are a more affordable option, and for some people that's the priority.....,whether or not it's in fact good value for money is a whole other discussion ;).......people have to work out where they sit within the quality to quantity spectrum for a particular project..................It's certainly a challenge here for you in that how can you accurately assess and distill/filter the "advice" offered by various parties?.......Seriously, unless a builder actually absorbs your design brief and comes back with a considered solution, any suggestion/comment such as " you could raise the ceiling" or "put in a window" or "use trusses" of whatever is neither here nor there, and are just floating ideas to consider in the mix...........but isolated "suggestions", whilst may be ideas to consider, don't effectively dealing with the overall solution/big picture to your challenge..................there are different areas of expertise in this game.....builders are builders, (and they seem to have a knack of getting called in and influencing too early in the process) they build stuff and certainly they have an idea about this and that from experience, and they can provide sound quotation/opinion on how much it will cost to do something... BUT really only properly/accurately once there is hard documentation in place (read: documented&specified, not basic concept/design sketches/verbal ideas) .......I have great respect for builders (it's a seriously hard rugged gig) and I know some fantastic ones, but builders are (in general) not "designers" unless they have come form a design background......and the conversations if held too early can be (unintentionally blurred, confusing and actually detrimental to the client and what they really need to be focusing on...........design advice from a builder can be offered with good intentions, however I have found it generally comes from more a singular benefit angle (usually motivated by business/profit) whereas (good/seasoned design) advice from a design professional comes from more complex, balanced and creative position and process in which various aspects are simultaneously managed/considered to achieve results for a client on multiple levels, ie, cost, function, aesthetic, experience etc.............the different and various professional skills all have their place, but need to be utilised in the right order relevant to the process......................yep I wish you all the luck.....these are always big investments, and big decisions, both emotionally and financially :)

write to him and say you're not satisfied with the work and can't pay for such a poor job after you already gave him a chance to fix the problem but it's still not good enough... send photos of each problem area and ask what he suggest could be done to fix them (keep duplicates of all emails or letters).....he may ask for another chance to fix the problem or may decide not to ask for the rest of the money...the only consolation is that you will have a poor job for half the agreed amount and/or you may decide to give him another chance. Unfortunately crooked tiles can be a problem in lots of houses where walls are never straight but a good tiler expects and will compensate for this.. removing tiles can break them and damage the surrounding tiles so i hope you've kept some spares and if necessary explain the problem to your tile supplier to recommend another tiler to try and fix the problem ...hopefully the rest of your reno will go well, best of luck to you

This is really a job for a professional, as there are so many implications for town planning, fire and acoustic separation between dwellings (covered under the building regulations), legal (are you on seperate titles, or is it strata titled), front setbacks, and structural implications. I haven't seen too many houses that have been subdivided into two units that are on two seperate titles in recent times as the complexities are so challenging with the current planning and building regulations. Your project will need a lot of research and careful management of the bureaucracies, depending on where you live. Your best bet would be to start with a local professional who is familiar with the local planning laws and council requirements. You will find it a lot easier to limit your new work to the existing building envelope. Best of luck, Dr Retro