Not if you keep it clearly outside the bid-call process — the label alone won't save you once a number becomes a response to an actual tender.
Short answer
Not if it stays outside the bid-call process. What creates a binding obligation under CCDC 23's framework is submitting a number in response to a tender, in the form the tender required — the word “budget” on the document doesn't change that if the substance is a bid.
CCDC 23 addresses “the legal obligation of owners and bidders under Contract A and Contract B” as arising through participation in a defined process: bid documents structured under Division 00 to Division 49, solicitation, closing, evaluation and award. A number becomes exposed to that framework once it's submitted as your response to that specific process — not because of what you titled the page.
An early, informal figure given before any tender call exists, offered for planning purposes and never submitted through a bid solicitation, sits outside that framework. A real bid ultimately settles into one of the recognized contract structures — see stipulated price vs. cost plus for the contrast —
In Ontario, trade pricing for depository-eligible work has to run through the regional bid depository to count as a formal submission at all — see how trade bids get filed. British Columbia runs the same principle through a single, centrally administered BC Construction Association depository rather than Ontario's regional ones — but in both, a number handed to a GC informally, outside that channel, doesn't become a depository bid just because the dollar figure later matches one.
Worked example: a firm gives an owner an early planning number of $3,100,000 before any tender exists. Eight months later, with drawings complete, it submits a formal bid of $3,400,000 through the actual call for tenders — a $300,000 difference. If the owner tries to hold the firm to the original figure, the firm's answer is that $3,100,000 was never submitted in response to a bid solicitation, so Contract A's framework never attached to it — the $300,000 reflects eight months of design development, not a broken promise.
a preliminary budget number is neither.Date it, label it clearly as preliminary, and state what it excludes, before anyone is asked to treat it as a number they can act on. An estimating system that scales covers building that discipline into how estimates get produced in the first place, so a budget figure and a bid never get confused downstream.
A 30-minute call is enough to tell you whether your bid process is holding you back.
