A Missouri doomsday prepper who poured £315,000 into an extreme home bunker says a family of four needs at least £5,000 in starter cash if Britain goes to war, and many households already fall short.
Estate agent and mum Rowan MacKenzie has built what she calls an “extreme” home bunker packed with emergency supplies, appliances, and stores. In advice framed for UK readers and reported by the Daily Mail, she put a hard number on the first month of readiness: food, water, basics, and a portable bug-out bag.
That £5,000 figure is her floor for a household of four. It lands against savings data that leave little room for comfort.
Finder’s 2026 research, cited in the same report, put average UK adult savings at £19,214. Adults under 55 averaged just £9,888. And 39 percent had £1,000 or less, not enough to cover even MacKenzie’s per-person starter budget.
Her guidance follows comments from Wes Streeting that the UK faces a “greater risk of war,” with Britons urged to stockpile tinned food, bottled water, and cash. The prepper’s answer is not panic. It is a plan.
MacKenzie is clear she does not expect every family to copy a six-figure shelter. She starts smaller.
“[I ask myself]: ‘If something happened tomorrow and I couldn’t buy anything for seven days, how comfortable would my household be?’ You don’t need an [expensive] bunker to get started. You need a plan.”
She pegs food and supplies at roughly no more than £1,000 per person, lasting around three weeks if rationing is done right. That total also covers bug-out bag gear meant to last three days if a family has to leave in a hurry.
“It really does depend on the household income, so only get what you can afford without breaking the bank.”
The must-haves she flags are blunt: shelf-stable food on rotation for at least seven days per person, water, backup power, medicine, a radio, cash on hand, and ways to cook and move without the grid. Unopened gadgets do not count as readiness.
MacKenzie’s sharpest warnings are about ordinary mistakes, not movie-plot disasters.
“Stockpiling food you never eat is a no-go. In an emergency, discovering your family hates half your food store will be a problem.”
She says people buy food and forget water. They store gear they have never used. They assume the lights stay on. An unopened water filter, camp stove, radio, or generator is little help if nobody knows how to run it.
Her drill is simple: kill the power for an evening. Cook on the backup method. Use stored water. Test communications. See what is missing before a real outage forces the lesson.
She also rejects single-scenario planning. A flexible setup beats a stash built for one imagined apocalypse. And she tells people not to advertise what they have or where it sits, because in a true emergency, she says, it is “one man for themselves.”
“We know a day is coming soon that we need to be as prepared as possible. It’s not paranoia, it’s being ready.”
That line is the whole argument. Officials now talk openly about a greater war risk. Savings figures show a large share of adults cannot cover a basic month of supplies. A prepper with a costly bunker is still telling ordinary families the same first step: cash, calories, water, and a plan you have actually tested.
Self-reliance is not fringe hobbyism when the people in charge start talking about war and empty shelves. It is common sense with a shopping list.
