Laying solid foundations for your home extension

February 27, 2024
Information published was correct at the time of writing

Looking to amplify your living space and enhance the value of your property?

Initiating an extension project can be daunting. So, where should you begin? The first port of call in any home extension journey is the creation of comprehensive plans. These blueprints should encompass every nook and cranny of the proposed extension – from length and breadth to depth.

This granular degree of detail leaves little to the imagination, ensuring your dream is lucidly conveyed to your builders. With such meticulous plans in place, you’re priming the stage for precise budgeting, efficient scheduling and an overall seamless process.


Budgeting isn’t a step that should be skimmed over. Each component of your extension must be accounted for, and it’s essential to be frank about your financial constraints. You might need to compromise to fit your budget, but early planning is key.

Your in-depth initial plans will help your builders provide accurate quotes. However, do remember to set aside a contingency fund for unexpected costs that could arise along the way. Always prioritise quality over cost when selecting a builder, as the cheapest option could lead to costly complications later on.


It’s crucial not to take for granted that your extension will fall within permitted development rights. Invest time in understanding the rules and regulations and determining whether you need to apply for planning permission. Elements such as previous extensions and the size and position of the new one could influence whether your plans fall under permitted development.

If you’re building under permitted development, bear in mind there are stringent guidelines to follow. If these restrictions curtail your dream extension, consider applying for planning permission instead.


A significant aspect of planning is considering the season. Now we are in the winter months, it is recommended that you avoid this time of the year, as conditions like frozen ground and inclement weather can cause substantial delays. Spring is an ideal starting point, particularly for larger projects.

But now is the time to engage in open dialogues with your contractors about estimated timeframes and plan accordingly. If you’re responsible for arranging the delivery of materials, allow ample time to avoid any delays.


Throughout the process, it’s essential to consider how the extension will impact the rest of the house, both now and in the future. Evaluate how the additional space might affect the flow between rooms and the functionality of existing spaces.

Consider how your household’s needs may change over time, ensuring your extension is planned with this in view. Don’t let minor issues distract you from your end goal. Keep your vision at the forefront of every decision and use it as a motivational tool to stay on track.

Don’t forget, our professional friendly advisors are on hand to support you and can help you explore all of your options.

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