Turnkey Contractors

What to Consider When Carrying out a Home Extension

A home extension is a fantastic way of increasing the living space in your home and adding value. Planning and decision-making are key aspects of a house extension. Home extensions are a complex process that requires planning.

What should I consider before I get a home extension?

Do I need planning permission?

You must consider whether you have permission to create an extension to your home.

A typical rule of thumb is to build extensions that are no larger than half the land area around your home, no higher than the original roof, and no higher than four metres for a rear extension.

Do I need to get approval for building regulations?

You can add an extension to your home without planning permission. But do you need approval from the Building Regulations?

Building Regulations are designed to make sure that buildings and extensions meet the minimum requirements for energy efficiency and structural integrity. They also address fire safety and ventilation.

Building Regulations do not cover most repair work, but some outbuildings, sheds, and conservatories must follow the guidelines.

Some jobs that require approval include:

  • Loft conversions
  • Chimneys and flues
  • New windows openings
  • Installations that require new drainage or wastewater plumbing
  • Installation of heating appliances
  • Extensions for Home
  • Advanced Disability adaptations


You can submit a Full Plan submission, or a Building Notice to apply for approval.

A Full Plan Submission will require ongoing visits from a building inspector to your site throughout the process.

A Building Notice informs the local authority that you are subject to an extension that is compliant with regulations. They will then have 48 hours’ notice before your new building begins.

Do you have any shared walls?

If you plan to dig foundations within 3 meters of a boundary, your work will need to be compliant with the Party Wall Act. If foundations are to be dug within six metres of a boundary, you will need to comply with the law.

The 1996 Party Wall Act allows you to build on or near your neighbours’ property or buildings, and even allow access onto their property if they have planning permission.

Is your property available with site access?

Delivery and builders will need access to your site when you are undergoing an extension. Are there enough spaces for cars? Is it safe for builders to work in?

What insurance is perfect for a home extension?

If you are requesting an extension or managing the project yourself, it is a clever idea to apply for Extension Insurance. Contact your homeowner’s insurance company to find out if they offer extended extension insurance.

Insurance covers both the original building as well as any new works being done during renovations or alterations. The insurance can be lifesaving if your house is damaged or collapses during construction.

Talk to your builders to resolve any concerns.

Will an extension increase the value of my home?
Building a home extension with an aim to increase value to your house is important. It is crucial that the extension’s cost is lower than the market value of your home. You can then be sure that the investment was worthwhile.

Check out our blog for more ways to add value to your home.

Do you need an update on your home?

House extensions are an exciting prospect. People tend to rush to do them without considering the existing state of the house’s facilities.

When building new infrastructure, it is necessary to meet additional demand for heating and plumbing systems.

Consider whether it is possible to swap out old items for new. You could switch your boiler to eco-friendly heated flooring. This will not only make your home more energy efficient but also make it more appealing to potential buyers.

All our homes are being inundated with technology, from automated voice-controlled blinds to fridges that display the contents of their interiors on a touchscreen panel to thermostats that can be controlled by voice. These trends will add value to your home and make life easier.

Where will you be resting during the building?

It all depends on how big the project is and where it is located. Living in the home while construction is underway can cause disruptions to the project’s progress.

Consider the safety and security that comes with living on a construction site. Dust and dirt can get in the way your daily life and well-being. If workers are working around you, it may take them longer to finish a project.

You will need to decide whether you will live on-site, in short-term accommodation like a hotel or a rental with friends.

How do I find good local builders?
It can be difficult to find qualified contractors for your home. You may end up with unfinished jobs or poor work. Therefore, it is so important to make sure your house extension is done with your best interests in mind.