Quick answer: Most homeowners spend three to six months planning a kitchen before committing to a purchase. A useful rule of thumb is a 4:1 ratio, roughly four months of planning for every month of installation. Rushing that ratio is the single most reliable predictor of post-install regret.

It is one of the questions we hear most often at the showroom: “How long is this going to take?” People usually mean the installation, but the answer that actually matters is about the planning that comes before it. Most homeowners underestimate how long good kitchen planning takes, and many arrive at a showroom having done very little of it. This article sets out what the planning phase actually involves, why the timeline tends to be longer than people expect, and the four phases you should work through before you are genuinely ready to make a decision. To avoid the most common installation issues before your project begins, read this “What Goes Wrong During a Kitchen Installation, And How To Avoid Expensive Mistakes”.

why the planning-to-install ratio matters

The installation of a new kitchen, stripping out the old one, fitting carcasses, running worktops, tiling, finishing, typically takes two to four weeks for a standard-sized project. The planning phase, done well, should take three to six months. That works out to roughly a 4:1 ratio, and it is not arbitrary.

A kitchen is a fixed asset that stays in your home for 15 to 20 years. The decisions you make during planning: about layout, workflow, storage, appliances, and finish – are difficult and expensive to revisit once the cabinets are on the walls. An extra fortnight of planning costs nothing. An extra fortnight of remedial work after installation can run into thousands of pounds. The asymmetry is stark.

what most homeowners actually do, and why it goes wrong

The most common pattern we see is a homeowner who spends a weekend on Pinterest, visits two or three showrooms the following week, and starts requesting quotes within a month. The brief they bring is light on specifics: “modern, white, probably open-plan.” The budget is a round number. Appliance choices have not been finalised.

By the time the kitchen arrives, preferences have shifted. Small decisions: socket positions, the depth of a particular drawer, the exact finish on the island, were made in haste and now feel like compromises. None of this is unusual. Almost all of it traces back to compressing the planning phase. The KBSA recommends that homeowners allow adequate time to fully explore their requirements before committing to a design – a principle that reflects what experienced designers see in practice every week.

the four planning phases, and how long each one takes

Good kitchen planning has a natural sequence. Skipping phases, or running them out of order, is where most problems originate. Here is a realistic breakdown:

The sequencing matters: most homeowners skip phases 1 and 3 entirely, jumping from browse straight into refine. That is precisely where regret seeds itself.

when is planning “enough”?

Planning is sufficient when you can answer four questions without hesitation. What are the three things your current kitchen most fails at? What is your firm budget, not a best-case number, but the actual amount you could spend, including contingency? What are your non-negotiable appliances, and have you confirmed their current specifications? And how do you want the kitchen to function in everyday use, not what it looks like, but what it actually feels like to cook in?

If any of those answers are still vague or aspirational, you have more planning to do. A good designer can help you refine the answers, but they cannot supply them. The most productive design conversations start with a client who knows what they are trying to solve. Before your first substantive showroom appointment, it is worth reading what to bring to a kitchen showroom visit, it covers the practical preparation that makes that first conversation genuinely useful.

“The clients I enjoy working with most are the ones who have sat with the problem for a while. They have spent time in their current kitchen with a critical eye, they have noticed the small irritations as well as the obvious layout failures. When someone arrives with a proper audit behind them, even an informal one, the design process moves faster and the result is almost always more considered. You are not designing from scratch; you are solving a specific, lived-in brief. That is what I would ask anyone to do before they book a first visit.” Cassandra Wilkinson-Leonard, Senior Designer, Suga Küchen

common mistakes to avoid

• Visiting showrooms before completing a living audit. You will be shaped by what you see rather than what you need, which tends to produce an aspirational brief rather than a functional one.
• Setting a budget before you understand the scope. A round-number budget without line-item thinking tends to erode quietly once appliances, installation, and trades are added in.
• Finalising the design before appliance specifications are confirmed. Manufacturer dimensions change between ranges and model years. A millimetre gap in the wrong place has real consequences at installation.
• Treating the browse phase as planning. Collecting images on Pinterest or Houzz is useful research. It is not a design brief. The two things produce very different conversations with a designer.
• Rushing to a decision because the build timeline feels urgent. German kitchen manufacture takes 8–14 weeks from order. That lead time gives you considerably more room in the planning phase than most homeowners realise.

frequently asked questions

Is six months too long to spend planning a kitchen?
No, for most homeowners, six months is about right, and for larger or more complex projects such as extensions or knock-throughs, longer is sensible. The concern is not how much time you spend planning; it is whether that time is being used productively across the four phases. Six months of focused, sequential planning is very different from six months of loosely browsing.

Can I plan a kitchen in a weekend?
You can gather useful information in a weekend, but not plan a kitchen well. The living audit, arguably the most valuable part of the process, takes two to four weeks by definition, because it requires you to observe your cooking habits over different kinds of days: busy weeknights, relaxed weekends, occasions when you have guests. That observation cannot be compressed into 48 hours.

When have I planned enough to buy?
When you have a tested, specific brief, one that covers layout priorities, a realistic budget with contingency, confirmed appliance specifications, and your non-negotiables on storage and finish. If your brief still feels vague or reads like a mood board description rather than a set of practical requirements, you need more time in the audit and brief phases before committing.

Do designers plan for me, or do I plan and bring it to them?
Both, but in sequence. Your job is to complete the audit, gather references, and write the brief. Then you bring that to a designer who turns it into something technically feasible and manufacturable. A designer cannot conduct the living audit on your behalf; they were not there when the oven was in the wrong place or the bin blocked the walkway. That observation belongs to you.

Should I get my own measurements before visiting a showroom?
Rough measurements are helpful, overall room dimensions, plus window and door positions, but precision is not required at the first visit. A detailed site survey happens later in the process. Bringing approximate dimensions helps a designer quickly identify which layout configurations are viable and shows you have done some practical thinking ahead of the conversation.

How do I know if my brief is good enough?
A good brief reads back like your actual life, not a magazine. It names specific frustrations (“there is no room to prep more than one dish at a time”), specific requirements (“we cook together so flow around the island matters”), and specific constraints (“the budget is firm at £X, with 15% contingency held back”). If it reads like a style description, it needs another round of audit work before you visit a designer.

Wherever you are in your kitchen plans, a short conversation with one of our designers can save weeks of second-guessing. Chat with a designer no pressure, no sales pitch, just practical guidance grounded in real installation experience. You can also learn more about our approach to kitchen design in Altrincham.

Written by Cassandra Wilkinson-Leonard, Senior Designer, Suga Küchen. Last updated 15 May 2026.