I would still want to try to build a house/studio as much as possible by myself. However, I would be comfortable saying what I will have at the end might not be architecture, because I just need it to be a functional house to my own individual needs; that is, to begin with, but perhaps not extended as such as additions are made when friends and family are included into a functional space...
That process of growth - a transitioning from ‘a first room’ over time - aside, I think architecture is about a lot of things besides living functions. As an interface with art it’s division of space, or the spaces between “individual” (the named works, per se) installations. Architecture can also work with the delivery of sounds to our ears, and in this way we have to extra mindful of the concept and word(s) interval(s); i.e. how long do people attend to these sounds, or spend moving from installation to installation, or how long they give pause (start and stop) to a singular piece of sound and/or visuals -- again, depending on what all is subsumed by a name under it’s artist-given title. All this jargon into consideration and we might be able to see the utility in view architecture as designing interaction on a meta-artistry level. And, let’s then start an instantiation of a piece of architecture by asking, “How long __?” reiterated space by space, but specifically with reference to the timing (interaction) of-the and between-the things, people, (digital/psychic/x-ray/infrared) viewers, and artists as we can quantify/measure with things like probability (monte hall problem even?) theories and empiricisms. The rest of the creative spirit remaining the same, let’s now jump ahead to “the end” of a architecture process and ask “When ___?” before we get there; i.e. “when will this project be finished, or will it ever be finished?” which is getting moreover to a question in a more important framework: “how will this project begin again?” like, from scratch, from industrial replication (i.e. mobile home), in addition to, from ‘replication’ and in addition to -- modular design, i.e. the ridiculously easy to draft and redraft connex shipping containers. So, with 2 ends covered, like 2 rooms (with respect to the prior paragraph’s sentiment, per se), like entrance and exit, start and finish, we can let the other indefinite activities of planning, design, engineering, construction and teamwork breath inbetween the interval of the 2 answers to their respective questions; but, if all this conceptual framework is understood then we should be able to interrupt intermediary process, no matter your familiarity with whomever, and ask how this is going to help begin another process or how its going to end its own process.
Never-the-less, it is more convenient (for the time) to (insist on) referring to architecture with a collaborative tense. Because, in one way, we should always be mindful of our geographical impact and landmarks we are looking to build whether in small or large part, or for short or long term: nothing lasts forever except maybe “an engineered super-being” entirely composed of carbon.