How Much Does it Cost to Build a Garage? And What Options Do You Have?

Are you thinking about building a garage? Want to get an idea of how much it will cost? Let us guide you through the options and prices.

How much a garage will cost is primarily determined by its size, foundation depth, the materials used and the type of roof you want on top of it.

On this page, we’ll look at traditionally built garage (i.e. brick) as well as cheaper pre-fabricated options.

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Brick Wall Garage Cost Guide

Garages made with brick walls are popular in the UK, they blend in neatly with the existing brickwork used on the main building and typically last as long as the house.

Single skin walls, that’s walls one brick thick, are typically used in the construction of most garages unless you want to convert the garage, or part of it, into a habitable space. For a conversion, you’ll need two walls with insulation sandwiched between the two. Do consider this if you think you might convert the garage at a later date.

The number of windows and doors used in the construction will also affect the price, as will the type of roof covering. Flat roofs are much cheaper than a pitched, tiled roof.

Based on our research in 2020, a simple single brick garage, with a flat roof and just one door, the starting price is around £13,500 incVAT. This price includes the groundwork.

Make that a double garage and the price goes up considerably, especially if you want all the extras such as electric doors, a side door for additional access, a power supply to the garage and landscaping such as extending or altering the driveway.

Explore our price table below where you’ll find more examples, these were updated in May 2020 to effect current prices being charged:

Project:Price:
Single garage with flat roof£13,000 inc VAT
Single garage with pitched tiled roof£15,000 inc VAT
Double garage with flat roof£22,000 inc VAT
Double garage with pitched tiled roof£25,000 inc VAT
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Garage Construction Cost Breakdown

Below is a cost breakdown for a typical double garage construction.

Not every item will apply to your project, but you can use this as a guide to garage prices:

  • Dig and fill foundations with concrete – £2750
  • Dispose of soil excavated from foundation trench – £500
  • Pour concrete slab for floor – £2500
  • Brickwork, steel joists etc. – £4500
  • Install roof timbers – £1250
  • Roof covering of felt, batons and tiles installed – £2250
  • Fascias, soffits, guttering, rainwater pipes and provision for ground drainage – £2000
  • Electrics for door, lighting and power sockets – £750
  • Electric garage door, window and side access door – £3500
  • Security, painting, shelving, extra groundwork such as finishing off or extending/altering the driveway – £1000
  • VAT – £4200

Total: £25,200

The cost of planning permission, structural engineer fees and architect costs are not included above.

Garage Costs – Where You Can Make Savings and What May Cost More

As we are sure you can appreciate, the cost of constructing a garage varies from project to project.

Here are the key points that affect the price:

The depth of the foundations and the thickness of the base slab – Concrete isn’t cheap and depending on the soil type under your proposed garage, you’re going to need a lot of it. This page has up to date prices for delivered concrete.

The type of roof you want – Flat roofs require less timberwork than a pitched roof, felt is also cheaper than tiles or slate. Flat roofs are also much quicker to construct. The downside of a flat roof is their longevity, they won’t last as long as a tiled roof, and they don’t look as appealing. This page contains a guide to garage flat roof options.

Single skin or two walls with a cavity? – Garages are usually constructed with single skin walls, but if you intend to spend a lot of time in the garage or if a garage conversion is a possibility in the future, it may be worth paying more for a double skin wall which is structurally stronger, and you can insulate it via the cavity.

Don’t underestimate the cost of the of electrics and drainage – You’ll probably want electricity in your garage which will involve creating an additional circuit from the consumer unit, the cable may need to be laid in a trench underground. How much this costs will depend on how far away the garage is and what the ground is constructed from; concrete, blocks, tarmac, earth etc.  For rainwater drainage, you may be able to connect the rainwater pipes to an existing soakaway, if not, a new one may need to be constructed, see soakaway regulations and price here.

Finishing off/landscaping – For most people, a garage is useless unless the driveway is extended or altered, so it reaches the threshold of the new garage. the cost of this extra work will depend on the type of driveway you have; concrete, block or tarmac etc. Also, consider the cost of landscaping and laying a footpath to a side door, if your garage has one. Gates, security devices, wireless door openers etc. are also extra garage costs to consider.

Concrete Sectional Garages

Concrete pre-fabricated garages are very quick to install, cheaper to construct, are sturdy and have a long lifespan.

The concrete sections are manufactured in a factory and delivered to site by a truck before being assembled.

A single garage can be erected and a roof built in about one day. A typical double garage takes around two days. This is significantly quicker than it takes to construct a brick garage.

Prefab garages and homes don’t have a good reputation in the United Kingdom but are far more popular in mainland Europe. The main downside of these garages is how they look. A concrete garage rarely blends in seamlessly with a brick or cladding property.

However, the cost-saving of a pre-fab garage is considerable and by being creative with paint and plants, you can mask much of the concrete structure.

Below is our garage pre-fab price guide:

Project:Price:
Single garage with pitched tiled roof£10,000 inc VAT
Double garage with pitched tiled roof£17,000 inc VAT
Get a Custom Price HereGet a Custom Price Here

Timber Frame Garages

Timber garages can also be prefabricated, and the quality of the build will vary from manufacturer to manufacturer. In general, it’s safe to assume that you’ll get what you pay for with lightweight, shiplap cladding garages having the shortest lifespan and solid timber garages lasting the longest.

Again, this type of pre-fab garage is seen less in the UK than in mainland Europe and the US where they are very popular.

Below is a price guide for solid timber framed garage construction:

Project:Price:
Single garage with pitched tiled roof£12,000 inc VAT
Double garage with pitched tiled roof£19,000 inc VAT
Get a Custom Price HereGet a Custom Price Here

Steel Garage Builds

Steel framed garages are one of the cheapest you can buy, and they are often preferred by DIYers as they are delivered flat-pack style and are easy to erect using basic hand tools.

The price is similar to that of a concrete prefab garage but most steel garages have corrugated roofs which are rarely aesthetically pleasing.

Can You Tell Me About Garage Regulations and Planning Permission?

Planning permission and building regulations are two different things.

To avoid the costly and time-consuming task of gaining planning permission, you may be able to construct your garage via the “permitted development” route.

This means you must build the garage within a set of pre-determined rules:

  • No outbuilding is located forward of the front of the house (i.e. must not be in the front garden).
  • Outbuildings and garages to be a single storey with a maximum eaves height of 2.5 metres and maximum overall height of four metres with a dual pitched roof or three metres for any other roof.
  • No verandas, balconies or raised platforms are allowed.
  • No more than half the area of land around the “original house” can be covered by additions or other buildings.

If your property is a listed building or is located on designated land, you’ll probably need full planning permission.

In most cases, you won’t need building regulations approval if your garage is less than 15 sq metres in size and contains no accommodation.

For garages between 15 sq metres and 30 sq metres, you will not typically be required to apply for building regulations approval providing that the building contains no sleeping accommodation and is either at least one metre from any boundary or it is constructed of mostly non-combustible materials.

Planning permission and permitted development rules are complex so we suggest you start here if you haven’t looked at them already.

Is Building a Garage a Good Investment?

If you have plenty of land around your property then a garage would make a good investment and you can expect a financial return when eventually sell the property.

However, a garage isn’t as sought after as extra living space. Building a garage onto a small plot of land might not be a good financial investment and could put off potential buyers.

Many homeowners are converting integral garages into extra rooms as this is what buyers are looking for in the current market.

Let Us Help You Get a Price For a Garage

We hope you found our research into how much it costs to build a garage insightful.

We update our prices every couple of years but for a customised quotation based on your needs, tap the button below and fill out the form:

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This guide into how much it costs to build a garage was written by and was last updated in May 2020.

Don’t forget; we have price guides for hundreds of home improvement projects.

Explore our full list of detailed price guides here.

Author - Danny Woodley