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Must-haves when building a new home
Lahav Meiri, licensed renovation contractor · Published 3 August 2026
A must-have when building a new home isn't a feature everyone wants. It's a decision that's expensive to reverse and specific to how you live. Some belong on every list - structure, systems, the shape of the site. The rest only you can name, and that's the part a generic list can't do for you.
Most must-have lists are the same list for everyone, which is the problem. This one is organised by what's expensive to reverse. After eight years of pricing changes on site, that's the only test I've found that separates a real must-have from something you can decide later.
One thing worth knowing before you start: the last section isn't a list at all. It's the questions that turn a wish list into a must-have list, and only you can answer them.
What actually makes something a must-have
Three tests. If something passes all three, it belongs on the list. If it fails the first one, it can almost always wait.
Is it expensive to reverse?
Moving a wall on paper costs nothing. Moving it after the slab is poured costs thousands and delays everything behind it. This is the test that matters most, because it's the one people get wrong in both directions - agonising over tile they can change in ten years, and skipping past decisions that lock permanently in week three.
Does it come from how you actually live?
Not how you'd like to live, and not how the house in the photo lives. If you can't point to something in your current week that explains why you need it, it's a want.
It's a want
Would it survive a budget cut?
Every project has a moment where something comes off the list. If you've never asked yourself what you'd sacrifice, that moment makes the decision for you - usually badly, usually under pressure.
The must-haves you can't add later
These are the ones nobody puts on a list, because they're not exciting. They're also the ones I get called about five years later, when adding them means opening walls.
Which way the house faces.
Where the sun lands decides where you'll want to eat breakfast, which room gets too hot in August, and which one you'll never sit in. It can't be changed at any price.
Ceiling height.
Costs little at framing. Costs a rebuild afterwards.
Where the structure carries load.
This decides which walls can come out later and which can't. Ask early which openings are possible, even if you don't want them yet - it's the difference between a house that can change and one that can't.
Electrical capacity, and empty conduit.
Most people size the panel to what they need today. Then comes an EV charger, a hot tub, a workshop. Running an extra circuit through a finished wall means cutting, patching and painting. Empty conduit costs almost nothing during the build and saves thousands after it.
Rough plumbing locations.
A sink can move a metre for very little before the concrete goes down. After, it's a different job entirely.
Drainage and grading.
Water is the most expensive thing to fix retroactively, and the least visible when you're choosing finishes. Get it right while the machinery is still on site.
Insulation and air sealing.
You will never see it. You will feel it every day for thirty years, and on every heating bill.
You will never see it. You will feel it every day for thirty years.
The must-haves that come from how you live
This is where generic lists fail. A house sized from a template gets it backwards: guest rooms and formal dining rooms that see almost no use, while the kitchen everyone actually lives in ends up tight. Nobody plans that. It happens because the room list came from a template instead of from a week.
Room sizes matched to actual use.
Walk through a normal Tuesday. Where do you eat? Where does everyone end up at 7pm? Which room do you walk through and never stop in? Size the house around the answers, not around the floor plan you liked.
The entry you actually use.
Most people come in through the garage or the side door and drop everything in the first room they reach. If that room is your kitchen, plan for it.
Where quiet matters.
Working from home, a baby, a teenager with a drum kit. Acoustic separation is a framing and insulation decision, not a furniture one.
Storage where things are used.
Not more storage. Storage in the right place. A large closet at the wrong end of the house stays empty.
A room that can become something else.
Children leave. A parent moves in. Work changes. One space that can change use without changing structure is worth more than a room designed for exactly one purpose.
What people put on the list that can wait
Good news, mostly. A lot of what feels urgent isn't.
When NAHB asked more than 3,000 home buyers what they'd give up to accept a smaller home, the first things to go were the home office (53%) and the dining room (52%). The kitchen and the closets stayed. That's a ranked list, made under pressure - and most people only build one when the pressure arrives.
Finishes, tile, paint, fixtures.
These are reversible. Expensive to redo, but possible. They're also where most of the emotional energy goes during planning, which is energy taken from decisions that can't be undone.
Appliances and cabinetry style.
Plan for the space and the services. Choose the objects later.
The features you saw online.
A pantry door to the garage, a second island, a prep kitchen. Some of these are worth it - and they're layout decisions, which means they're real. But they belong on the list because you need them, not because they're on everyone else's.
Landscaping, with one exception.
Planting waits. Drainage and access for machinery do not.
The list nobody can write for you
Everything above is what I can tell you. This part only you can answer, and it's where a wish list turns into a must-have list.
If you had to cut three things from your list tomorrow, which three?
Most people have never ranked their own list. The ranking is what makes the cut survivable when it comes.
Which item on your list would you be genuinely upset to lose?
Not 'prefer to keep.' Upset.
Not 'prefer to keep.' Upset.
What are you asking for because you saw it, and what because you need it?
Both are allowed. Knowing which is which is what lets you cut the right one.
What's wrong with where you live now?
Easier to answer than what you want, and far more useful. The specific failures of your current home are the most reliable source of real must-haves you have.
If there are two of you - which items are on the list because of the other person?
This one is uncomfortable and worth doing. The items nobody actually wants are the ones that survive longest, because neither of you will be the one to say it.
Those last five questions are the ones that decide the list. Nestbrief works through them with you.
See how it works →Your list is the one that matters
The first four sections of this page apply to everyone. The last one doesn't - and that's the whole point. Two families with the same budget on the same street will have completely different must-have lists, and both will be right.
Nestbrief asks you those questions one at a time, at home, at your own pace. When you say you want a bigger kitchen, it asks what for. When you're not sure, it helps you think it through instead of moving on. Nothing to prepare, nothing to fill in - you just talk.
This is what comes out of it:
One conversation, and you walk into the first meeting with a list you can defend.
Common questions
- How many must-haves should I have?
- Fewer than you think. If everything is a must-have, nothing is, and the first budget conversation will make the decisions for you.
- What if my builder says a must-have isn't possible?
- Ask what specifically prevents it - the site, the code, or the budget. Those are three different answers with three different solutions, and only one of them is final.
- Should I share my must-have list with the architect or wait?
- Share it early, and label it honestly. An architect who knows what's fixed and what's flexible can design around the constraint instead of guessing at it.
- Do I need to decide all of this before the first meeting?
- No. But the more of the last section you've thought about, the further that meeting gets.