Hosepipe Ban in South East London: What You Can and Cannot Do in Your Garden

You step outside, coffee in hand, and there it is again. That patch by the fence that used to be the greenest bit of the lawn is now the colour of digestive biscuits. You reach for the hose out of habit, then stop. Are you actually allowed to do this anymore?

The short answer: since 00:01 on Thursday 23 July 2026, Thames Water has banned hosepipe use across most of Greater London, including South East London, with no end date announced. Watering cans, buckets and water butts are all still fine. Here is exactly what has changed, what you can still legally do, and what it means for your garden over the coming weeks.

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At a glance: what you can and cannot do

The full detail on each of these, plus the exemptions most people miss, is below.

What changed on 23 July 2026

Thames Water brought in a Temporary Use Ban, commonly called a hosepipe ban, from 00:01 BST on Thursday 23 July 2026. It applies until further notice. No end date has been announced, so it is worth planning for this to run for a while rather than a few days.

The ban is not a polite request. It is enforceable under the Water Industry Act 1991 and the Flood and Water Management Act 2010, and breaking it can mean a fine of up to £1,000. It covers most of Greater London, including the SE and BR/DA supply areas, which works out at around 10 million people affected.

Which SE London postcodes are affected

This is a Thames Water supply area restriction, not a borough by borough one, but in practice it takes in the whole of South East London. That means Greenwich, Lewisham, Bromley, Bexley, Eltham, Blackheath, Catford, Peckham, Dulwich and everywhere in between, along with Dartford just over the Kent border.

If you are unsure whether your specific postcode is on Thames Water supply, the safest move is to check directly with them at thameswater.co.uk/help/temporary-hosepipe-ban. A handful of streets on the fringes of SE London are supplied by other companies with their own separate rules. For our full list of covered postcodes, see our Areas We Cover page.

What is banned: the full list

Under the ban, you cannot use a hosepipe connected to the mains for any of the following:

• Watering gardens, lawns or allotments
• Using a sprinkler or garden irrigation system
• Filling or topping up paddling pools, swimming pools or hot tubs
• Cleaning cars
• Cleaning patios, paths, driveways, walls and windows

Thames Water has confirmed that pressure washers count as covered under this ban too, since they draw from the same mains supply through a hose connection. If you are wondering exactly where that leaves specific jobs like patio and driveway cleaning, the honest answer is to check the current guidance on the Thames Water page above rather than take anyone's word for it, ours included. Rules like this can be interpreted slightly differently depending on the equipment and water source, so go to the source.

What you can still legally do

The ban is specifically about hosepipes connected to the mains. You are still completely free to:

• Water your garden using a watering can or bucket
• Use water stored in a water butt, however you collected it
• Reuse household water, such as leftover washing up water, on plants
• Use a hose section up to 30cm long to fill a watering can from a tap

It is more effort than dragging a hose across the lawn, but a couple of watering cans a day on the plants that matter most, containers, veg beds, anything newly in the ground, will do far more good than trying to soak the whole garden.

The exemptions most people miss

There is one exemption that catches a lot of homeowners out. Newly laid turf and new planting can still be watered with a hosepipe for 28 days from the date it was laid, but only where the turf or planting was installed by a business as part of a paid service. If you laid your own turf over the weekend, that exemption does not apply to you. It is there to protect commercial landscaping work, not DIY jobs.

This is one of the reasons it is worth having professional turfing in South East London done properly and documented, since it is the only route to that 28 day watering allowance under the current rules.

How to keep your garden alive during the ban

A ban does not mean your garden has to suffer. It just means being smarter with the water you are still allowed to use. Here is what we would prioritise across an SE London garden right now.

• Water the things that cannot recover, first. Pots, containers, hanging baskets, veg beds and anything planted in the last few months have shallow roots and no reserves. Established shrubs, trees and lawns can look after themselves far better, so they go to the back of the queue.
• Water at dawn or dusk. Watering in the middle of a hot day means most of it evaporates before it reaches the roots. Early morning or evening lets the water actually soak in, so every can goes further.
• Water deeply, less often. A good soak two or three times a week encourages deep roots that cope better with dry spells. A daily splash trains roots to stay near the surface, where they dry out fastest.
• Mulch your beds. A layer of bark, compost or even grass clippings over the soil locks moisture in and slows evaporation. It is one of the biggest wins during a dry spell and needs no water at all.
• Reuse household water. Cooled water from washing up, rinsing veg, or the shower while it warms up is all fair game on ornamental plants. It is outside the ban and otherwise goes straight down the drain.
• Get a water butt on now if you can. It will not help today, but the moment rain returns you will be collecting free, ban-proof water for the rest of the summer.

Get those few habits right and most gardens come through a ban in far better shape than the panic-watering approach, using a fraction of the effort.

What this means for your lawn

Take a breath about the brown patches. An established lawn that goes brown in dry weather is almost always dormant, not dead. Grass is remarkably good at shutting down to conserve itself and greening back up once proper rain returns. It is not pretty for a few weeks, but it is rarely fatal.

What you should avoid is walking on a stressed, dormant lawn more than you need to, since foot traffic on dry grass causes more lasting damage than the dryness itself. Beyond that, our advice for most established lawns right now is simply to leave them alone and let our lawn mowing service keep on top of growth with the blade set a little higher than usual, which helps grass retain moisture. If you are weighing up whether a lawn that keeps struggling every summer is even worth persisting with, our guide on artificial grass costs in South East London is worth a read.

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What this means for patios and driveways

Regular sweeping and a stiff brush with a bucket of water will keep most patios and driveways looking reasonable during the ban. For anything more stubborn, moss, algae or ground in dirt, speak to a professional who can confirm what equipment and water source is compliant for the job before booking anything in. As above, Thames Water's own guidance is the place to confirm what is and is not allowed with pressure washing equipment specifically.

What this means for new turf and planting

If you have been thinking about relaying a tired lawn or putting in new planting, timing now matters more than usual. Turf laid by a business qualifies for 28 days of hosepipe watering under the exemption above, which gives it a real chance to establish properly even during a ban. Turf laid without that support has to survive on cans and butts alone, which is much harder in a dry spell. If you are planning ahead, our month by month guide on the best time to lay turf in South East London covers how to time it around weather like this.

How long is this likely to last

Nobody, including Thames Water, has put a date on when this will end. Bans like this are usually reviewed against reservoir levels and rainfall, and lifted once supplies recover, rather than tied to a fixed calendar date. The honest planning assumption for SE London gardens is that this could run for several weeks, possibly longer, so it is worth adjusting your watering routine for the medium term rather than waiting it out.

How we are adapting on jobs right now

We have been doing this in SE London for over 12 years, and dry summers are nothing new to us even if this particular ban is a bigger one than most. On every job at the moment, from Eltham to Dulwich, we are adjusting mowing heights, timing any new planting around the exemption rules, and being straight with clients about what is realistic to expect from a lawn until proper rain comes back.

Not sure whether your lawn is dying or just dormant? Send us a photo and we will tell you honestly, no charge and no obligation. Call 07760800457, Monday to Saturday, 9am to 6pm.

How Our Gardening Services Can Help

A hosepipe ban changes how a few of our regular jobs are done, not whether we can do them.

• Lawn mowing and care, adjusted mowing height and timing to protect a dormant lawn until rain returns
• Professional turfing, the only route to the 28 day hosepipe watering exemption on new turf
• Patio and driveway cleaning, booked around confirmed, compliant equipment and water sources
• Garden maintenance, general upkeep adapted for dry weather across the season

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Hosepipe Ban FAQ