Warehouse Space Optimisation UK: Time to play Tetris?
Warehouse Tetris - Is It Game Over?
According to Savills, the UK’s warehouse development pipeline has collapsed by 65% since its Q2 2022 peak. If you’re not scrambling to figure out what that means for warehouse space optimisation in your operation, respectfully, maybe you should be.
Because while speculative warehouse development has fallen back to pre-pandemic levels, inventory hasn’t. Order volume hasn’t. And business rates are scheduled to increase by as much as 30% over the next 12 months.
The planning system that might need to approve your new warehouse? The UK Warehousing Association calls it “not fit for purpose.” Local authorities are not keen on granting permission for large buildings. Available land is increasingly scarce. And even if you find a site, you’re looking at planning battles that could stretch for years.
Which means you’re playing Tetris on a screen that’s getting smaller and smaller while the blocks keep coming at you faster and faster.
And it’s perfectly possible that your warehouse is already playing it badly.
How UK warehouse space optimisation became an urgent problem
Add up all the inefficiencies that accumulate over years of reactive decisions – random putaway, slow-movers hogging prime pick faces, returns that never quite clear, buffer zones for manual workarounds, rack configurations nobody’s touched since 2019 – and you might be wasting 15–20% of your warehouse space on workarounds for inefficient systems and decisions that seemed sensible at the time.
Warehouse Tetris isn’t forgiving. And neither will your profit margin be, after that business rate increase.
Score your warehouse: five misplaces that are costing you space
Misplace #1: Random putaway
The receiving team gets a pallet and puts it wherever they can find a space. No strategy, no planning, no analysis. Nothing. That pallet fits, but it’s just created three gaps around it that nothing else will fill.
Misplace #2: Slow-movers in pick faces
High-velocity SKUs buried in bulk storage while your slow-movers are clogging up prime pick-face real estate. Technically it works. But it’s created more problems than it solved.
Misplace #3: Returns staging areas that never empty
Returns come in. They sit in staging. QC will get to them… eventually. ‘Eventually’ eventually becomes ‘never’. Now you’ve got a permanent staging area consuming 45m² of warehouse floor, with things piling up around it.
Misplace #4: Manual process buffer zones
Because your systems don’t talk to each other, you need physical buffer zones to manually sort, validate, and reconcile what your WMS, ERP, and warehouse floor can’t. You’re holding space open because of interface inefficiency.
Misplace #5: Poor rack configurations
Your racking was configured for inventory you no longer carry. You’ve got 2.4-metre aisles when you only need 1.8m, and short racks where you could go tall. That’s a lot of wasted space with no one to blame but time.
Three expensive options for when you're running out of space
Option A: Find new warehouse space
The speculative development pipeline is at pre-pandemic levels. New construction has slowed dramatically. The Golden Triangle is facing significant capacity constraints driving up rent. Available land is scarce. And even if you find a potential site, you’re facing a planning system the industry’s own trade association describes as broken.
Local authorities don’t want to approve large industrial buildings. The current government is focused on residential housing supply. You’re not only competing with other companies for the few available sites – you’re working within a planning framework that is, right now, actively working against you.
And even if you navigate all of the above? You’ll be paying significantly higher rates than 2021, waiting months or years for approvals, and explaining to your FD why you need more space when you haven’t optimised the space you already have.
Option B: Relocate
Moving is a nightmare. The costs are eye-watering. You could end up with weeks of downtime. Your integration team is already stretched thin – how long before your systems are fully operational in the new location?
You’re also operating in a market with a 76% vacancy rate for warehouse operatives. Labour is already nigh on impossible to find. If your top forklift operator lives 15 minutes from your current facility and the new warehouse is 40 miles away, how many of your experienced team are about to start looking for a new job closer to home?
And if you have slotting optimisation that works right now, that’ll be gone too. You’ll be starting from scratch in a new building, with new rack configurations, and a new workforce.
Option C: Hand everything to a 3PL
Your fixed costs become variable costs, and any control you have right now needs to convert into trust in your new distribution partners. If something goes wrong – and something always goes wrong – you’ll be dependent on someone else’s systems, someone else’s priorities, and someone else’s timeline to fix it.
None of these options are great. They’re just varying degrees of expensive, painful, and increasingly difficult.
Option D: warehouse slotting optimisation with Dispatcher WMS
Teach your warehouse to play Tetris better.
Here’s the thing about Tetris: you only lose if you use your space inefficiently. The blocks are going to keep coming at the same rate. Your screen size can’t change. The only variable you have is how well you place the blocks in the space you have.
Your warehouse works exactly the same way.
Space wasters vs space optimisers
Space waster warehouses putaway receipts randomly, creating unusable gaps; stick slow-movers in premium pick locations; dedicate permanent square footage to staging because the returns workflow is broken; need buffer zones for manual processes because their systems aren’t integrated; live with rack configurations designed for inventory they don’t carry anymore; and waste up to 40% of floor space on workarounds for bad systems – all while dealing with business rates rising 30%.
Space optimiser warehouses deploy Dispatcher WMS for intelligent putaway that minimises gaps and maximises density; use dynamic slotting – the core of warehouse slotting optimisation – to rotate pick face inventory based on real-time velocity data rather than best guesses; integrate User Services Portal (USP) workflows so returns move from dock to QA to restock without sitting in staging limbo; eliminate buffer zones by connecting systems that actually talk to each other; optimise rack layouts based on current inventory profiles; and reduce stock levels by up to 25% through better workflows and near-100% inventory accuracy.
Your Tetris blocks are the same. Your screen is the same. The only difference is how you play.
Ready to increase your high score? Book a demo and we’ll show you how much space Dispatcher WMS and USP could be saving on your warehouse floor.
You could spend months or years fighting for planning permission on new space that might never come. You could relocate and hope your best workers make the commute. You could hand everything to a 3PL and hope for the best.
Or you can teach your warehouse to play Tetris better – and we can help.
