Expanding your living space through a home extension can be one of the most rewarding investments you’ll make in your property. However, successful planning a home extension requires careful consideration of numerous factors before breaking ground. Whether you’re adding an extra bedroom, expanding your kitchen, or creating a home office, understanding the essential elements will save you time, money, and potential headaches down the road.
Your Budget
Before diving into architectural plans, take time to clearly define why you need additional space and how much you’re willing to invest. Consider whether your current home’s layout could be optimised through internal modifications before committing to an extension. Establish a realistic budget that includes a contingency fund of at least 15-20% for unexpected costs that frequently arise during construction projects.
Research shows that well-planned extensions can add significant value to your property, often recovering 70-80% of the investment cost. However, over-capitalising for your area can limit your return, so understanding local property values is crucial when planning your project scope.

Regulations and Requirements
In the UK, house extension projects must comply with building regulations regardless of size, and many require planning permission depending on their scale and location. Single-storey rear extensions under certain size limits may fall under permitted development rights, allowing you to proceed without formal planning applications. However, these rights have specific restrictions regarding height, depth, and proximity to boundaries.
Two-storey extensions, side returns, and front extensions typically require full planning permission. Conservation areas, listed buildings, and properties with previous extensions face additional restrictions that can significantly impact your project timeline and design options.
Navigating extension planning permission can seem daunting, but understanding the process helps ensure smooth approval. Local planning authorities assess applications based on factors including impact on neighbours, local character, and highway safety. Pre-application advice services, offered by most councils, provide valuable guidance on whether your proposals are likely to succeed.
Home Extension Advice
Selecting the right professionals makes the difference between a successful project and a costly nightmare. Choose architects and builders with proven extension experience and check references from recent clients. Obtain multiple detailed quotes and be wary of estimates that seem significantly lower than others, as they often indicate hidden costs or quality compromises.
Consider the impact on your daily life during construction, especially for kitchen or bathroom extensions. Plan temporary arrangements for essential facilities and discuss work schedules with your builder to minimise disruption. Many homeowners underestimate the dust, noise, and general upheaval that accompanies construction work.

Home Extension Checklist
Creating a comprehensive home extension checklist ensures nothing important gets overlooked during your project journey. Start by confirming your legal boundaries through official title deeds, as many extension disputes arise from boundary disagreements with neighbours.
Investigate utility connections early in the planning phase, as moving gas, electricity, or water supplies can add substantial costs and time to your project. Consider future maintenance access when designing your extension, ensuring that gutters, windows, and external walls remain accessible for cleaning and repairs.
Making Your Extension Dreams Reality
With proper preparation and professional guidance, planning a home extension becomes an exciting journey rather than an overwhelming challenge. At Dentons.net, we recommend CP Building Contractors to anyone thinking about getting a new kitchen extension in Wiltshire, Warminster and Westbury. Make sure to research thoroughly, budget realistically, and choose your team carefully. The result will be additional living space perfectly tailored to your family’s needs and a valuable long-term investment in your property’s future.
