Hi Mike - I'm in Ontario, same stage you're at, and I suspect your estimates are slightly - very slightly - low. Unless you're going with Ikea or equivalent for all cabinetry? Hopefully others will chime in. Good luck with your project! We're currntly having sticker shock at the windows $, lol.

Lowball builder grade allowances. Add about 30% to them for basic mid grade. 50% for nicer mid grade, like stacked to the ceiling cabinets and a stacked crown in a decent mid level cabinet. Double it if you want low upper end.

We just did a kitchen remodel in Nova Scotia. All new cabinets (laminate boxes and full overlay solid birch doors with softclose) + Caesarstone in a 11x12' kitchen came to $21,700 + tx. Almost all the lowers were drawers, with full-extension slides.

We could have done it cheaper, but this is a forever kitchen.

Hopefully I am not too late in answering this question. I build in New Jersey and Pennsylvania so I am not aware of your local costs. However, the process is the same, you must do your own due diligence. You should go to a cabinet shop, a counter-top shop, hardwood floor vendor, tile vendor, etc. an check these out for yourself. This is a high cost purchase and the fact that you are asking about allowance amounts means that you need to perform some due diligence.

Having said that, builders will typically get better pricing for material than you would. So if the tile you are looking at costs an average of $5 per sq. ft. perhaps the builder is getting it at $2.50 or $3. Most builders will provide allowance based on what they pay, not on what you can buy the items for on the open market.

One last word of advice, again hope its not too late, hire a very good local real estate attorney to represent you during the contract process. There is no excuse for not hiring a real estate attorney during this phase that makes sense. If you run into an issue you need to have someone on your side. However, you need a good attorney to sense any potential future issues and protect you against those!