Self Build Homes

Looking for a quality and competitive construction company for your next project?


Self Builds

We can work with you to create the perfect self build home. We will assist you with the planning stages, through to interior design, build, decoration and even smart home solutions. Astrum Construction are experts in turn-key solutions to self build homes, ensuring that the project comes in on-time, on-budget and finished perfectly.

If you've got an idea in your head that isn't fully formed yet, we can help you with the design of your project. Our design team have experience working on a huge range of self build projects from homes to commercial and industrial buildings. This knowledge helps to ensure our projects retain a high-quality from start to finish.

In addition, we will work through any complications that may arise to ensure you get the exact home you have always dreamed of. We can also provide labour only teams to larger construction projects if required, helping to plan, build and finish entire estates of self build homes and unique development projects.

We are constantly updating our skills & knowledge of the building industry. Regularly learning new techniques and building on our many years of established knowledge, we're confident in our work when it comes to self build projects. However, we also know you're never too old to learn!

We use sustainable materials wherever possible, which has a great range of benefits for your self build home. Perks of sustainable materials include lessening your impact on the environment through sourcing and creating the materials, as well as making your home as energy-efficient as possible. Using less energy is not only also better for the environment in itself, but it'll save you money on your utility bills.

We also work with the latest technology in smart home solutions, lighting controls, and security systems - so you can own a modern home with the latest technology, all the way from smart control of your heating and lights, through to access control, or even a complete home audio installation.

We'd love a chance to speak to you about your self build project, for a no-obligation chat contact us today!

Still need convincing? Read all about why you should choose a self build home.

If there are still doubts in your mind, we've debunked 5 common myths about self builds.

Ready to get started? Here's what you need to do first.

What are the benefits of self-builds?

When you choose a self build home, you have control over every aspect of the process - from concept to completion. It’s an ideal opportunity to create a house that is perfectly suited to your lifestyle. In terms of budgeting, you can also choose where to splash out and where to save.

You can create a high-quality home on a smaller budget, in comparison to purchasing a newly built house.

You will make, on average, a 25% profit on your self build project if you choose to sell it. You will also save money on VAT.

Is self-build cheaper than buying?

If you can afford to purchase a new build, you can also afford to build your own house.

In fact, self build homes can often work out cheaper. When you buy a new build, the developer will usually keep between 10-30% of the profit. If you have built the home yourself, these profits are yours to keep.

How do you start a self build?

To begin your self build home, you first need to figure out your budget. How will you fund your self build project? You may choose one or a combination of options: a cash-lump sum, selling or remortgaging your house, or a self build mortgage.

Next, you need to find your self build plot. We have some tips on the best way to do this.

Then you need to choose your build approach. How much do you want to be involved? You can take on the role of project manager yourself, but you should ensure that you have enough relevant experience. Alternatively, you can hire a project manager to assist you with the process. But the simplest option and the most common route that self builders take is to hire a main contractor to manage the build. You will maintain a high level of communication with this contractor throughout. This is the service that Astrum provides in Buckinghamshire, Bedfordshire, Northamptonshire, and Hertfordshire.

How long does it take to self build a house?

From beginning to finish, you can expect your self build project to take up to 24 months. The research and planning stage can take around a year, and the build can take anywhere from 6 to 12 months.

What is self build and custom build?

When you self build, you have control over the entire process. In a custom build, a property developer takes care of most of the process - obtaining land, hiring contractors, managing construction. You have control over some aspects, such as the layout of the building or finishing touches - but there will be some elements you will not be able to change.

What is a self build plot?

A self build plot is a piece of land that is purchased for the purpose of building your own house. 

Where can I self build in the UK?

You can find land to build on nearly anywhere in the UK, but the price of the self build plot will vary depending on location. 


Self Build Projects

Self Build Bourne End Astrum Construction

Bourne End – Self Build Home

Astrum Construction Cranfield Road New Build 2

Cranfield Road – New Build Home

2019-05-15 13.49.19-1

Chicheley Road – Self Build Home

Astrum Construction Woburn

Woburn – New Build Home


Other Services

Astrum Construction - Elm Hall 12 1920 x 1080

At Astrum we hold a wealth of experience in understanding all the planning conditions and constraints involved in the construction of barn conversions. We can assist with the whole construction process from planning & approval of your conversion and design right down to lighting controls and smart home solutions.

The positive of converting existing barn buildings is that they, like new builds, are largely exempt from VAT, which you are currently able to reclaim via HMRC Notice 431C. Also, the strict planning constraints involved in the building of new dwellings in the Countryside are timely and expensive to overcome. Recent changes in planning ‘Permitted Development (PD) rights introduced in early April 2014 have transformed the landscape for anyone wishing to undertake a barn conversion in England (not applicable to the rest of the United Kingdom as it currently stands).

Barn conversions are the perfect build for those wishing to embrace original design features and character while utilising living space. The beauty of a barn conversion is that they allow for generous room proportions and high ceilings.


At Astrum one of the elements of construction that we specialise in is building/extending homes with natural stone, not just because of its inherent characteristics of quality and durability but also due to the fact that it lends itself perfectly to landscapes of rural locations.

Natural stone is a sustainable building material, the process of extracting natural stone from local quarries or reclaimed from nearby demolished buildings is far more ecological that the processes used to create standard building bricks.

Natural stone is:

  • Highly durable
  • Low maintenance
  • Versatile
  • Comes in many shapes and sizes
  • Retains thermal mass
Astrum Construction Woburn

We can work with you to create the perfect home from the planning stages through to interior design and smart home solutions. We can assist with the design, and work through complications that may arise to ensure you get the exact home you have always dreamed of. We can also provide labour only teams to larger construction projects if required.

We are constantly updating our skills & knowledge of the building industry, we use sustainable materials wherever possible lessening impact on the environment & making your home as energy efficient as possible. We also work with the latest technology in smart home solutions, lighting controls, and security systems.


Here at Astrum Construction we can create the extra space you need with a garage or loft conversion.

Garages and lofts are an ideal area to convert for that much-needed living space.

Astrum Construction can turn your garage or loft into an extra bedroom, bathroom, kitchen or living area. Whichever you choose we will ensure it is a space you will love.


Do you want a bigger kitchen? Want a new bedroom? Let Astrum Construction help you by building an extension. Extensions give you extra space and can add immense value to your property. You can have the extension built exactly how you want. We like to take time to listen to our customers, their ideas and expectations and can offer our expert advice and recommendations.

Our unique approach is based entirely around your needs. You can choose our team to project manage the whole process, from the initial design of your project, through to the build and completion, right down to the last coat of paint. Or you can choose the services which suit you.  The simple staged process enables you to make informed decisions every step of the way.

By working with us, you can be confident that we’ll find the best solution for you and your family, creating the living space you need to suit your lifestyle, and of course, your budget.


At Astrum Construction we are at the forefront of the refurbishment and restoration industry. We offer all our customers a unique building and refurbishment service which combines with our knowledge of traditional building techniques with modern methods.

Whether you have a traditional building in need of a full refurbishment or a more contemporary building which needs internal refurbishment, Astrum Construction have the expertise for the job.


Along with our domestic building services we also offer a wide range of commercial refurbishments including fit out services creating the perfect working environment for your customers, clients and employees.

We can transform your existing building to an open plan working system or install partition walling to separate office spaces if required.

Works that we have undertaken include office fit-out, restaurant extensions, barn conversions to office space and more. We will undertake the whole project from planning to completion, inclusive of all areas from wash rooms to parking areas. You can trust that Astrum will provide you with the perfect environment for your growing business.

Green Valley Farm, Cranfield Road
Astwood, Buckinghamshire MK16 9JU

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