Even the website of this Cornish hotel is hosted by a carbon neutral server. Families can benefit from a free washable nappy service, those who drive in electric cars can recharge, and there are solar panels and a biomass boiler.

It may be in the Hebrides, but this hotel still aims to dry as much laundry as possible on the lines, after washing it with biodegradable products. Their goal is to protect the pristine island by cutting food miles and upgrading insulation.

Towels aren’t tumble-dried at The Pierhouse: a pulley system is employed instead. Using everything from eco-friendly cleaning products to a septic tank for waste, this Lochside hotel has been awarded a gold award for Green tourism.

Sally and Chris Searle live the real Good Life here. They grow fruit and veg, collect eggs and cure bacon. Waste goes to the wormery and old carpets become weed suppressants. They have solar panels and an electric car, too.

A 1,500-foot borehole supplies water to flush the loos and cool the rooms; if you open a window, the air conditioning will cut out. Made from eco-friendly material, the hotel recycles all glass and paper and has bikes for hire and a Green Team.

Alongside a warm Welsh welcome from Eluned Rowlands, guests at this B&B receive recycling instructions in bedrooms that are big on local slate and timber. There are solar panels and dimmer switches;
and electric cars can be charged onsite.

When Beverley and David Harrison- Wood renovated their 19th-century B&B, they added heating and hot water from a biomass boiler. Solar panels and LED lighting help cut down on electricity, and food is locally sourced where possible.

You can tuck into Michelin-starred meals with a clear conscience at this eco-friendly hotel, which uses a company to turn food waste into fuel. Though with Niall Keating cooking, we doubt there will be much left on your plate.

Most of the food you eat at this country estate is farmed on site. What’s more, heating comes from a ground source heat pump and wood pellet boiler. Even the bin liners are paper and the hotel is looking to introduce wooden key cards.

The building might be ancient, but the LED lighting and thermal insulation at this Exmoor hotel are emphatically not. Owners Huw Rees and Sam Prosser go the extra mile: staff are trained in 'green thinking', there's minimal chemical use in housekeeping and grounds, and guests are encouraged to explore using public transport, hired bikes or good old Shanks's pony.

Fishing boats land on the slipway outside this remote Highlands hotel so 'it’s more about food metres than food miles', say owners Tanja Lister and Sonia Virechauveix. The lobster and crab on their menus are creel caught, scallops are hand dived. Wild venison comes from the surrounding hills.

There are nest boxes in the garden, newts in the pond and buzzards flying overhead at Vivienne and Philip Taylor's Peak District B&B. Eco credentials are boosted by an electric car charging point, solar power and locally sourced breakfasts.

This hotel embodies not just cutting-edge design but a commitment to green policies that sees it pump water from its own borehole under the building. Built with timber from sustainable sources and fitted with air conditioning that cuts out when you open a window, it pledges to recycle all glass and paper.

Eluned Rowlands, your hostess at this welcoming B&B near Snowdonia, works hard to support the environment. You'll find solar panels, recycling instructions in your room and locally-sourced (and delicious) food at breakfast, some of it from Eluned's garden.

Plaudits pour in from readers for this seaside hotel that impresses not just for its striking modern architecture and views, but also its commitment to rain- and grey-water harvesting, it's biomass boiler, and its roof constructed from local sea thrift - popular with insects and butterflies.

Renovation work at David and Beverley Harrison-Wood's 19th century Cardigan B&B included the installation of LED lighting, a solar power system, and a biomass boiler to provide all their heating and hot water. Now guests can soak in a hot bath with a clear conscience.

Take time to wander around the lovely wildlife pond in the garden of Helen and Tim Withers's former vicarage-turned-B&B. Salad leaves, herbs and vegetables are all home grown, and breakfast eggs are produced by their own hens. Guests arriving by electric car will find a charging point for their use.

'We have an eco-friendly policy' say Philip and Noreen McEvoy of their characterful town-centre B&B. Their water is heated by solar power, paper, plastics and glass are recycled and food miles are kept to the minimum, with local fish, cheese, eggs and bacon for breakfast. Even the coffee is roasted nearby.

Your hosts at this Victorian former rectory will provide maps to encourage you to walk. They have installed solar thermal water heating and a biomass boiler. Rain water is harvested to water outdoor plants. Cleaning products are phosphate-free. Birds, hedgehogs, moles and amphibians are made to feel almost as welcome as the paying guests. Produce is variously Fairtrade, locally sourced and organic. And if this all sounds rather earnest, worry not – it’s a delight.

From a carbon-neutral heating and hot-water system, to home-grown fruit and vegetables from the polytunnels, from wormeries that turn food waste to compost, to locally sourced organic toiletries, eco-friendliness is a part of the ethos at this pub-hotel. And in this unspoilt part of Northumberland, free from light pollution, the dark-sky observatory is a revelation.

With a Gold rating for green tourism, the owners of this small, informal hotel do all they can to ensure they are not a blot on their beautiful island landscape. They have upgraded insulation, use water flow meters and monitor energy usage. Visitors are encouraged to walk or to use public transport. Laundry products are biodegradable, and whenever possible the bedlinen is hung out to dry. There are bird feeders in the garden, home-grown organic produce for the table, with extensive use of local meat, fish and shellfish.

From the insistence upon local, organic materials to the use of local staff and contractors, the owners of this Georgian rectory burnish their ethical credentials. Retro-fitted insulation, rainwater harvesting for the kitchen garden, walk-in showers to encourage water-saving, a heat-recovery dishwasher, light dimmers and motion sensors are just a few innovations. Everything possible is recycled. Vegetable waste is composted, while other food waste sets the sheepdogs’ tails wagging on a neighbouring farm.

There are blue seas and green values at this loch-side hotel, where cycling and walking are actively encouraged, and birds flock to the nesting boxes and feeders. Cleaning products are eco-friendly, a biodisc septic tank disposes of waste water and sewage, towels and bedlinen churn in energy-efficient washing machines, with a pulley system for drying, while everything that can be is recycled.

The helpful owners of this friendly B&B clearly love where they live, sponsoring a corporate member of Friends of the Peak District. They take pride in sourcing local produce, and encourage guests to explore the area by bike or on foot (though there’s a charging points for electric vehicles). They have installed a photovoltaic solar system. The garden is a wildlife haven, with bird feeders, nesting boxes, and a pond for Mr Toad.

How many other London hotels have their own borehole to flush loos and cool bedrooms? Or an energy loop to heat your room as it cools the fridges? Open the window and the air conditioning will cut out. Soak in a bath laced with natural products – or soak up the natural light in the atrium. The Zetter is a founder member of the Sustainable Restaurant Association – serious about sourcing and sustainability, and yet so much fun!

Guests glorying in the sea views at this adults-only hotel may be unaware that the prefabricated building has been positioned to make the most of the light and warmth of the sun, that the insulating sea-thrift roofing is a haven for butterflies, that sustainability governs every decision. No hospitality tray or in-room fridge? Too wasteful! Just ask and they’ll make you complimentary tea and snacks.

The very building feels organic, with natural rock built into this Victorian lodge reinvented as an exciting, cutting-edge B&B. Green innovations include computer-controlled biomass heating and low-voltage LED lighting, solar-panel water heating, charging points for electric vehicles. Breakfast ingredients are organic and locally source. Sustainability for sybarites.