Build your own hedgehog houses - create winter quarters for hedgehogs in Switzerland

Eine Person baut glücklich ein Igelhaus im sonnigen Garten, während ein neugieriger Igel zuschaut.

When the nights get colder in the fall, many hedgehogs in Swiss gardens come under pressure: natural hiding places are missing, piles of leaves are disposed of, gardens are "tidied up". If you create suitable winter quarters, you can actually help them survive - and at the same time give your family the gift of a meaningful nature project. In this guide, you will learn how to build a hedgehog house yourself, what to look out for in terms of location, materials and timing in Switzerland and what typical mistakes lead to a hedgehog house remaining empty.

Table of contents
TL;DR - The most important facts in brief
  • A hedgehog house helps young animals in Switzerland in particular through the winter, but is never a substitute for a natural garden.
  • Use untreated wood, dry leaves and choose a quiet, semi-shaded, elevated location.
  • It can be built with simple tools; a sheltered entrance and good protection from moisture are important.
  • The hedgehog house should not be used during hibernation - it should only be carefully cleaned in spring.

Why hedgehog houses are useful in Swiss gardens

Hedgehog houses are always useful in Switzerland where dense hedges, wild corners and piles of leaves are missing or greatly reduced. Although they are no substitute for a natural garden, they offer a sheltered retreat from the cold, wet and predators. Young animals in particular benefit from dry, insulated winter quarters if they still need to build up reserves in the fall.

Especially in residential areas with many walls, fences and manicured short lawns, your own garden becomes an important stepping stone in the landscape. A hedgehog house supports the local population, but makes particular sense if you also allow passages in the fence, poison-free maintenance and a little "clutter" in the garden. For children, this turns the hedgehog from a hidden night dweller into an exciting temporary roommate.

Materials and location for a safe winter home

For a safe hedgehog house in the Swiss winter, you need They need robust, untreated wood, an insulating filling of leaves or straw and a sheltered, slightly elevated place in the garden. A semi-shaded location under shrubs or next to a hedge is ideal, as long as there is no waterlogging and the area is walked on as little as possible in winter.

Boards made of larch, Douglas fir or oak, at least 1.5 cm thick, have proven their worth. OSB, pressboard, varnished furniture parts or plastic crates are unsuitable because they do not regulate moisture well and often emit vapors. The roof should be waterproof, for example with roofing felt, wooden shingles or a layer of tiles. Inside, a thick layer of dry leaves is sufficient; newspaper and fabric scraps are problematic due to moisture and the risk of mold.

Checklist: Suitable location for the hedgehog house
  • Quiet corner of the garden away from paths, playground and front door
  • Partial shade, e.g. under shrubs or behind a hedge
  • Slightly elevated position so that rainwater can run off
  • Firm, level surface (e.g. stone slab with drainage layer)
  • Entrance not directly facing the weather (west/north)
  • Garden accessible for hedgehogs (passages in fences of approx. 12×12 cm)

At higher altitudes in Switzerland with long periods of frost, it is also worth covering the hedgehog house with leaves, twigs or a thin layer of earth. In mild locations such as the Central Plateau or Ticino, a leaf cover is often sufficient as long as the location is sheltered from the wind.

Building a hedgehog house - step-by-step instructions

You can build a functional hedgehog house yourself using simple means. Allow for an internal dimension of around 30 × 30 cm and a height of around 25-30 cm. A tunnel-shaped entrance (e.g. with a vestibule) and a removable but well weighted roof are important. The following step-by-step instructions are feasible for families without a professional workshop.

Step 1: Determine the dimensions and cut the boards to size

Plan a base area of around 35 × 35 cm and cut the base, side walls, back wall and lid from untreated wood. Mark the position of the entrance on a front panel, about 10 × 10 cm, and make sure that there is still a wooden edge underneath to prevent draughts.

Step 2: Building the entrance and vestibule

Saw the opening into the front panel and build a short tunnel or partition inside so that the hedgehog can get around the corner into the sleeping area. This reduces draughts and makes access more difficult for cats or martens without unnecessarily reducing the interior space.

Step 3: Screw the body together and seal it

Screw the base, sides and rear wall together using weatherproof screws. Insert the front wall last. Check that all joints are tight and, if necessary, seal from the outside with non-toxic wood sealing tape or wooden strips to keep the inside dry.

Step 4: Set up the interior

Place the hedgehog house in its intended location and cover the floor with a thick layer of dry leaves or straw. Lightly compact the material so that the hedgehog can form a stable nest hollow and make sure that the entrance remains clear.

Step 5: Assemble the roof and make it weatherproof

Place the cover on top, secure it with hooks or stones if necessary and cover it with roofing felt, wooden shingles or tiles. Make sure that the roof is tight but can be removed for cleaning in the spring without having to dismantle the entire house.

Tools such as a handsaw, cordless screwdriver, folding rule and sandpaper are usually sufficient. If you don't have much time or experience, you can use kits or choose a ready-made shelter and just equip and place it.

Practical tip 💡

Let children help with sanding, filling and decorating, but not with sawing. Mark out a "quiet zone" around the hedgehog house, which is not entered during the hibernation period - this teaches children to be considerate of wild animals at an early age.

If you would also like to create suitable natural materials and shelters in the garden, you can find inspiration for structurally rich, hedgehog-friendly areas in the category for natural garden solutions at Sanilu-Garten.

Decision support: build it yourself or a ready-made hedgehog house?

Whether you should build a hedgehog house yourself or buy one depends on your time, manual skills and garden situation. Building your own is worthwhile if you like working, need flexible dimensions or want to implement a nature project with the children. A good prefabricated house makes sense if you have little time but want a durable, tested product.

For small city gardens with a clearly defined hedgehog corridor, a compact prefabricated house that can be easily concealed is often sufficient. In larger family gardens, one or two self-built houses are ideal because you can customize the location, size and access. It is important in both cases: The house must be solid, dry and predator-proof - a thin-walled decorative house is of little use to the animals.

Advantages of self-build

Size and shape freely selectable, cheaper with scrap wood, ideal family project, good integration into existing garden elements.

Advantages of prefabricated houses

Time-saving, often already optimized construction, clearly described maintenance instructions, suitable for people without work experience or without a workshop.

Cheap models made of thin plywood or plastic are unsuitable, even if they are advertised as "hedgehog houses". They usually offer too little insulation, warp quickly and are less likely to be accepted by hedgehogs.

Common mistakes with hedgehog houses and how to avoid them

Many well-intentioned hedgehog houses remain empty because a few crucial details are not right. The most common mistakes are: wrong location (too bright, too noisy or too wet), unstable or rotting material, lack of protection from cats and martens and too much curiosity during hibernation. These problems can be avoided with just a few adjustments.

Avoid moving or lighting the hedgehog house again and again in the fall. Hedgehogs react sensitively to disturbance and, in the worst case, will look for another, often worse hiding place if they become restless. Another common mistake is to place food directly in or in front of the hedgehog house: This attracts other animals, increases the parasite load and makes the location unsettled.

Important to note ⚠

Do not open or move an occupied hedgehog house during the winter - neither out of curiosity nor for the sake of it. "Look up". If a hedgehog is disturbed during hibernation, it uses up energy unnecessarily and can use up its fat reserves before spring.

If the house has not been accepted for several years, check the accessibility of the garden, the light and noise situation and whether there are any hedgehogs in the area. Sometimes it makes more sense to first create more natural cover (hedges, piles of leaves, dead wood) and then offer the hedgehog house at a slightly different location.

Care and maintenance of the hedgehog house throughout the year

For a hedgehog house to be used in the long term, it needs some care, but not too much. In Switzerland, the house should ideally be cleaned in spring when the hedgehogs have finished hibernating - usually between March and April, depending on the region and weather conditions. Before that, it remains untouched, even if warm days are already beckoning outside.

Wear gloves when cleaning, carefully remove the old nesting material and check the wood for moisture damage. Rinsing with hot water is sufficient; cleaning agents and disinfectant sprays should be avoided. Then leave the house to dry thoroughly until it is returned to its chosen location and filled with fresh leaves - usually in late summer or early fall.

In summer, the hedgehog house can be left empty, used as a daytime hiding place or - if it is very exposed - temporarily moved to a shady, quiet place. It is important that it is back in its winter position in good time before the autumn cold so that hedgehogs can discover it during their nightly forays.

Conclusion: Making good use of the hedgehog house in the Swiss garden

Plan the location first, then the material - and only then the details of the construction. A well-placed, solid hedgehog house with dry leaves and a quiet environment will help hedgehogs in Switzerland much more than a decorative house without a protective function. If you also allow passages in fences, poison-free garden maintenance and some wild structure, your garden will become a real habitat. Start with a solid hedgehog house, observe its use over two or three winters and then adjust the location and number of roosts accordingly.

Frequently asked questions about hedgehog houses and winter quarters

When should the hedgehog house be ready in the fall?
In Switzerland, it is ideal to have the hedgehog house in place and filled with dry leaves by the end of September at the latest. Hedgehogs will then have enough time to discover it during their nightly rounds in October and November. If you live at higher altitudes, you should bring the date forward a little because winter starts earlier there.
How can I tell if a hedgehog house is occupied?
Do not open the house. Indications of an occupant are freshly trampled leaves in the entrance, small droppings in the vicinity and often a narrow path through grass or leaves. In winter, you should limit yourself to these external signs and leave the roost itself alone.
Can I feed hedgehogs in the hedgehog house?
Food should not be fed in the hedgehog house itself, but in a separate, dry place. Food in the house promotes damp, mold and attracts uninvited guests. If you feed in the fall, put high-quality cat food or special hedgehog food for a few hours in the evening and remove any leftovers - at the latest with the first frost.
Is a hedgehog house also useful in the summer garden?
Yes, many hedgehogs use the house in summer as a daytime hiding place or resting place between their nightly forays. Shade and peace and quiet are particularly important then. You can also shade the house with branches or plants in summer, but you should refrain from looking inside or moving it frequently.
What should I do if I come across a hedgehog during spring cleaning?
Finish cleaning immediately, close the hedgehog house again and leave everything in place. In cool springs, individual animals can sleep until well into April. Do not attempt to relocate the hedgehog to a new home. Observe the situation from a distance and only clean the house when it is safely empty.
Is a hedgehog house suitable for all garden sizes?
In a small terraced garden, a single hedgehog house in a quiet corner is usually sufficient. In large gardens or in peripheral rural locations, two to three quarters may be useful, spread over different, well-protected areas. The decisive factor is not so much the size of the garden as the combination of tranquillity, accessibility and natural structure around the house.