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Granny Annexes and Family Annexes

Norwegian Log's granny annexes and garden family annex buildings are a stylish and straightforward way to provide self-contained accommodation for parents, children, extended family and relatives to live within easy reach.

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Our garden annexes begin at compact and convenient one-bedroom granny annexes and two bedroom log cabin style annexes all the way up to four-bedroom annexes with room for the extended family plus guests.

A permanent, liveable solution, our home annexes offer comfort and privacy beyond what a normal granny flat or granny pod could provide, and makes them suitable for everyone in the family. These ‘granny’ annexes offer independence with a safety net, ideal for those with disabilities, additional needs or who depend on being close to home and familiar faces. The family annex is not just ideal for older family members, it could be a divorcing son or daughter with children that cannot afford to get back on the housing ladder.

All our garden and granny annexes are made from natural, sustainable wood with a high level of natural insulation, making them warm in winter (and cool in summer). This saves on energy costs throughout the year, with minimal maintenance required thanks to the immensely strong and durable construction from made to measure Norwegian pine rather than flimsy prefabricated plasterboard panels.

All of our annexes come with a five-year warranty (extendable to 25 years).

Annexe styles and sizes

Our versatile construction system makes it easy to achieve the layout you want. Our portable granny annexes offer functional spaces for kitchen, shower room and everything else you would expect for comfortable, self-contained living.

Alongside our pitched roof garden annexes, which offer airy vaulted ceilings, we also offer mono-pitch mobile homes with a single sloping roof that you can install close to a boundary - where light might be an issue.

We offer two design styles in a range of different sizes. For a classic Scandinavian log cabin experience, our traditional annexes are built from solid log using interlocking, high precision, computer-controlled-and-shaped logs.

These are cosy and well insulated, with an indefinite lifespan. All of our traditional annexes have a full fit out package available.

For a more modern, fresh feel, our smart contemporary style garden annexes feature an eye-catching glass frontage and new log technology - which open up new intriguing design options, using angled shapes, rather than right angles.

These contemporary annexes are bright and welcoming, but still strong, durable and draught free. We offer all of our Contemporary annex styles with the 'turnkey' full fit out, or you can choose to complete the fit out yourself to your family's specific requirements.

Choose your ideal garden annex model below or use these existing models and layouts as a starting point for us custom building a granny annex to your exact requirements. Our design team will be happy to work with you to make your own bespoke garden annexe a reality.

Annexe installation and fit out

Each annex is quick and clean to install with minimal disruption, and in most cases, you won’t need planning permission or building regulations approval when you install one of our granny annexes.

You can read more about this in our handy guide to mobile home Planning Permission. Or contact us for some straightforward advice.

We do recommend that we obtain a Certificate of Lawful Development from your Council - we will even handle this process on your behalf. If Planning Permission is required, our experts will be happy to guide you through the process and deal with the application.

Another advantage of our transportable homes as granny annexes is that there’s no VAT to pay – a big saving on your initial costs. With prices starting at just £40,213 and finance available it's easy to see why a Norwegian Log garden annexe is a viable solution.

We’ll erect your log annex quickly and cleanly, with minimal disruption to your garden. If access is awkward, we can carry all the prefabricated components for your annex either down the side of the house, or even through a domestic doorway.

Option 1: Expert installation of your annex

Our installation service covers the insulated weatherproof structure of the granny annex that we erect on your base. That includes roof, internal walls, windows, doors, floors and decoration, but not fitting out items such as mains services, kitchen fittings, bathroom, electrics, plumbing and floor coverings. We provide complete working drawings for you to give to the contractor(s) you choose to fit out your granny annex.

Option 2: Turnkey annex fit out

Alternatively, for the ultimate in timesaving convenience, our turnkey packages also include fitting out. This service is available for sites within 50 miles/1 hour of Reading.

Prices for fully fitted-out granny annexes start at £64,213 and include kitchen, bathroom, electrics, plumbing and floor coverings.

As with all our buildings, you arrange the groundworks and main services. Should you require assistance with finding a groundworker to build the foundation we can in most cases support you with this. Alternatively, we will provide complete working drawings for the groundworks for you to give to your contractor(s).

Not sure which option might be best for you? Contact us and discuss your situation with one of our experts.

Long Term Granny Annexe Uses

A garden annex is an incredibly versatile, long term investment which can adapt to suit your changing family or lifestyle. Some families have planned to live in an annexe in their parents’ curtilage (the land attached to a house) to begin with and eventually swap homes, with the older generation moving into the granny annexe and the younger generation moving into the main house.

Housing parents in a garden granny annex for just one year can already mean significant savings on care home costs. In 2016, for example, the average annual fee for a room in a care home in the South East was £37,804, and for those needing nursing care, £46,644.

Five years of basic care costs would amount to £189,000, rising to over £230,000 for a more intensive package.

With Norwegian Log granny annex packages beginning at £64,213 this is already less than the annual price for a care home for two.

If family circumstances change, an empty garden annex can quickly begin paying its way to increase your garden’s income potential. You can offer B&B rooms or provide a self-contained home in your garden for rental. Business use is subject to a different Planning regime, of course, so please consult a professional.

When you’re looking to sell up, annexes are a popular way to stand out in the property market, with estate agents reporting that properties with an existing annexe are in high demand and tend to sell quickly.

A garden annex will add value to your home, and with our annexes designed to last a lifetime, it could prove to be the perfect long-term investment.

Are granny flats a good investment?

Yes, granny annexes and granny flats can be an excellent long term investment. In financial terms, a well built and attractive granny annex can add as much as 20 - 30% to a property. A granny annex removes the need for expensive care homes which are often not the ideal solution. There is certainly value in the quality of life benefits for you and your loved ones of living close by but still retaining independence.

Can a granny annexe be craned into a back garden?

Yes, a granny annex can be craned into a back garden in pre-assembled sections or wrapped packs for construction. Alternatively, the innovative interlocking log technology means that a walkway down the side of your house or a straight run through the house is sufficient for both assembling or disassembling your log cabin.

Can I get internet in my granny annexe?

Yes, granny annexes can be equipped with Wi-Fi and can even be fitted out with internet controlled heating, monitoring systems and smart devices.

Can I let my annexe as a holiday let?

Yes you can, with the appropriate local authority permissions. Be aware that there will be considerations around planning permission, tax and business rates - you may want to look at our holiday cabins instead.

Can I live in a granny annexe permanently?

Yes, a granny annex can be your permanent residence and contains all you need for independent living, such as kitchen area, bathroom with toilet, living space and sleeping space. Our granny annexes have a 5 year warranty which is extendable to 25 years, making an excellent long term home. Some of our customers have their child's family living in the annex initially and then swapping to the main home in the future as they grow up - learn more here.

Can I put a granny annex in my garden?

Yes, even if you have limited space. Our smallest Granny Annex, the Kelso, features a double bedroom, bathroom and lounge with kitchenette all within 29 square metres (7m x 4.13m). If your garden has a patch of ground which can accommodate this with room to work around (such as 800mm between the annex and the boundary) then it's suitable. Need to go smaller? Ask about our bespoke annex service. Contact Us.

Can I sleep in a log cabin in my garden?

Yes, granny annexes and granny flats can be an excellent long term investment. In financial terms, a well built and attractive granny annex can add as much as 20 - 30% to a property. A granny annex removes the need for expensive care homes which are often not the ideal solution. There is certainly value in the quality of life benefits for you and your loved ones of living close by but still retaining independence.

Can you build a granny annexe for £90,000?

Yes, prices for fully fitted out granny annexes start at £74,695 - this includes kitchen, bathroom, electrics, plumbing and floor coverings, so you'll only need to pay for groundworks and main services separately.

Can you sell a granny annexe?

You cannot sell a granny annex separate to the house - the annex must remain as an ancillary to the main home. Learn more in our Planning Permission section. Planning Permission.

Do councils support granny annexes?

Yes. Support is available in the form of a 50% reduced rate of the council tax payable as long as the annex is in use by a dependent relative, family member or main house owner.

Do I need guttering on a granny annexe?

Yes. Guttering is supplied on all of our log homes and granny annexes at no extra cost. See the range on our Annexes page.

Do I need planning permission for a granny annexe in my garden UK?

No, you usually don't need planning permission for a Norwegian Log Granny Annex as these are supplied under the Caravan Act - learn more on our Caravan Act page.

Do you have to pay council tax on a granny annexe?

Yes. Support is available in the form of a 50% reduced rate of the council tax payable as long as the annex is in use by a dependent relative, family member or main house owner.

Do you need a TV license for a granny annexe?

Yes, as a Granny Annex is classed as self-contained accommodation, you do need a TV license to watch, record or stream TV, online programmes or services such as iPlayer. You should also note that from 1st August 2020, changes for free TV licenses for over 75s are taking place.

Do you need building regs for a granny annexe?

No, you don't need building regs for a Granny Annex as these are supplied under the Caravan Act - learn more on our Caravan Act page.

Do you need foundations for a granny annexe?

Yes, a granny annex will need groundworks built before the annex can be assembled. We can provide complete working drawings for you to give to your contractor in order to build the foundation.

Do you need planning permission for a granny annexe?

No, you usually don't need planning permission for a Norwegian Log Granny Annex as these are supplied under the Caravan Act - learn more on our Caravan Act page.

Do you need planning permission to rent out a granny annexe?

Yes, granny annexes are only for relatives so you will need the appropriate local authority permissions to rent out a granny annex as a holiday let or long term let.

Do you pay rates on an empty granny annexe?

No, you do not need to pay council tax on an unoccupied annex which can't be let separately. This may be in the short term due to carrying out renovations or long term vacant.

Does a granny annex add value to your home?

Yes, a well built and well maintained granny annex (such as an attractive log annex) can add to the value of your home.

Does a granny annexe qualify as part of a main residence?

Yes- For insurance, council tax and licensing purposes a granny annex is classed as self-contained accommodation, so you will need separate policies or payments. For selling, the property must be sold as a house with granny annex and remain part of the main property.

Does a granny flat add value to your home?

Yes, a well built and well maintained granny annex (such as an attractive log annex) can add to the value of your home.

How big can a granny annexe be?

20m x 6.8m. The maximum internal ceiling height permitted is 3.05 metres. These are the maximum dimensions allowed under the Caravan Act which covers mobile log homes supplied as granny annexes.

How close to the boundary can I build a granny annexe?

Ordinarily you will need to allow 800mm (roughly 32 inches) for access. As our Granny Annexes are transportable log homes which comply with the Caravan Act, building regs (including boundary regulations) do not apply. Learn more here.

How do you get approval for building a granny annexe?

You do not need approval for building a granny annex if: A. The annex meets the legal definition of a mobile home in the Caravan Act (All Norwegian Log Granny Annexes do meet this definitition) and B. The granny annex remains ancillary to the house (i.e not legally separated for sale or rental). We would always recommend applying for A Lawful Development Certificate (LDC). View our range of approved granny annexes ready to install in weeks. View range.

How is water heated in a granny annexe?

Granny Annexes made from interlocking logs are very economical to heat thanks to their high levels of natural insulation. This means any method of heating water including solar, immersion heater, geothermal pump or gas boiler are all viable options.

How long does it take to build a granny annexe?

Dependent on size we would expect to be on site between 4-8 weeks. Allow another month if fit out is included - have a look at our case studies for how we achieve this:
A Granny Annexe in Somerset & A Granny Annex in the Cotswolds. As planning permission is usually not needed, this significantly speeds up the process. We use innovative interlocking log technology which uses precision cut logs, making it quicker to slot together and minimising gaps to keep the annex well insulated.

How many solar panels do you need for a granny annexe?

Electrical load will vary dependent on the size of your annexe and the internal fitout. An annexe with electric heating and showers will differ to one with a gas / oil boiler for example so consider this when choosing your appliances. For reliable power supply we would require a mains connection rather than reliance on solar panels for electricity, with solar panels to top up electricity or power your heating.

How much does it cost to build a 2 bedroom granny flat?

Our two bedroom log annexes start at just £57,515 including the cost of installation, with optional extras such as composite decking, foundation systems and triple glazing also available. Full fit out including kitchen, bathroom, electrics, plumbing etc is likely to add around £25,000 to the final price.

How much does it cost to build a granny annexe UK?

Prices for fully fitted out granny annexes start at £74,695 - this includes kitchen, bathroom, electrics, plumbing and floor coverings, so you'll only need to pay for groundworks and main services separately.

How much does it cost to build a granny annexe?

Prices for fully fitted out granny annexes start at £74,695 - this includes kitchen, bathroom, electrics, plumbing and floor coverings, so you'll only need to pay for groundworks and main services separately.

How much is a 2 bedroom granny annexe?

Our two bedroom log annexes start at just £57,515 including the cost of installation, with optional extras such as composite decking, foundation systems and triple glazing also available. Full fit out including kitchen, bathroom, electrics, plumbing etc is likely to add around £25,000 to the final price.

How much space do you need to build a granny annexe?

Our smallest Granny Annex, the Kelso, features a double bedroom, bathroom and lounge with kitchenette all within 29 square metres (7m x 4.13m), and the smallest bespoke annex we can design is just 23 square metres. You need to allow about 800mm between the annex and the boundary for access and a clear run through the house or down a side passage to get the components into your garden.

How much value does a granny annexe add?

A well built and well maintained granny annex (such as an attractive log annex) will add value to your home and increase the ability to sell the property as houses with family annexes are much in demand.

Is a granny annexe a separate dwelling?

No - For insurance, council tax and licensing purposes a granny annex is classed as self-contained accommodation, so you will need separate policies or payments. For selling, the property must be sold as a house with granny annex and remain part of the main property.

Is it a good investment to build a granny annexe?

Yes, granny annexes and granny flats can be an excellent long term investment. In financial terms, a well built and attractive granny annex can add as much as 20 - 30% to a property. A granny annex removes the need for expensive care homes which are often not the ideal solution. There is certainly value in the quality of life benefits for you and your loved ones of living close by but still retaining independence.

Is it cheaper to build your own granny annexe?

When factoring in the total costs of granny annex design, materials, construction and labour, ground works, plumbing, electrics, fitting out, resale appreciation or depreciation, it is very often more cost effective to buy a professionally made, long lasting granny annex with guarantee.

Is my garden suitable for a granny annexe?

Our smallest Granny Annex, the Kelso, features a double bedroom, bathroom and lounge with kitchenette all within 29 square metres (7m x 4.13m). If your garden has a patch of ground which can accommodate this with room to work around (such as 800mm between the annex and the boundary) then it's suitable. Need to go smaller? Ask about our bespoke annex service. Contact Us.

Is there a grant to build a granny annexe?

No grants are currently available, but there are financial options available to help spread the cost.. A granny annex adds value and buyer appeal to your current property so you are likely to end up financially better off in the long term

What constitutes a granny annex?

A granny annex is a self contained unit used as separate living accommodation for a relative of the main home occupant. Annexes have a kitchen area, bathroom, toilet, living space and sleeping space and are situated within the curtilage of the main property, such as a garden annex. Currently we supply the following range of recognised Granny Annexes.

What do you put in an annexe?

To be classed as an annex you must include a bathroom with toilet, sleeping area, living area and kitchenette or kitchen, but annex sizes can very from small one bed annexes up to 20 m x 6.8 m homes. This could mean you add a full kitchen, separate dining room, second or third bedroom and second bathroom or utility room depending on your needs.

What does a granny annexe consist of?

A granny annex consists of a self contained unit built within the curtilage of a main home and generally includes a bathroom, sleeping area, living area and kitchenette or kitchen.

What does a granny annexe look like?

Granny Annexes fit into two categories of styles. Some are timeless traditional Scandinavian log cabin styles with pitched roofs which are cosy throughout the year. Also popular are contemporary granny annexes with angled glass frontages which let in maximum light and air. These two styles are shown here.

What is a granny annexe?

A granny annex is classed as a self contained unit sited within the curtilage of a main home and must include a bathroom with toilet, sleeping area, living area and kitchenette or kitchen. It must not exceed 20m x 6.8m in dimension and must be occupied by a family member.

What is classed as an annexe?

A granny annex is classed as a self contained unit sited within the curtilage of a main home and must include a bathroom with toilet, sleeping area, living area and kitchenette or kitchen. It must not exceed 20m x 6.8m in dimension and must be occupied by a family member.

What is the average size of a granny flat?

Granny Annexes range from approximately 30 square metres to fit into a small garden up to 126 square metres to conform with the maximum regulations of the Caravan Act. This page shows some of the common styles and sizes of our granny annexes view here.

What is the maximum size for a granny annexe?

20m x 6.8m. The maximum internal ceiling height permitted is 3.05 metres. These are the maximum dimensions allowed under the Caravan Act which covers mobile log homes supplied as granny annexes.

Get in touch regarding Granny Annexes and Family Annexes

Thank you for your interest, we will get back to you as soon as we can.

Our Granny Annexes and Family Annexes

It's warm and it's cosy; it's solid and it's quiet. The fragrance of pine reminds you of Scandinavian forests and summer evenings. Your imagination starts to take you places. You imagine a wood burner, perhaps a desk or why not just some space to think?

Our show home is 32 years old, yet customers still say it looks and feels brand new. That's the quality of our workmanship and the materials. When you step into a Norwegian Log building you're stepping into a feeling and just like our buildings it's one that will last.

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