A kitchen extension is one of the most transformative home improvements you can make. It not only adds valuable space for cooking, dining, and entertaining, but it can also increase your property’s value and enhance your family’s lifestyle. If you’re considering a kitchen extension, one of the first questions on every homeowner’s mind is: how long will it take? At Simply Extend, our typical kitchen extensions take 12 to 16 weeks from start to finish, and here’s what that timeline includes.

Planning and Design

Before construction begins, careful planning is essential. This stage can take a few weeks and includes:

  • Assessing your property and understanding your space requirements.

  • Discussing your lifestyle and design preferences to create a bespoke plan.

  • Preparing architectural drawings and layouts.

  • Submitting any necessary planning applications or building control approvals.

At Simply Extend, we guide you through every step of the planning process, ensuring all details are agreed upon before work starts. A well-prepared plan helps avoid delays later and ensures your extension meets both your vision and building regulations.

kitchen extension southwest London | Simply Extend

Construction Stage

Once planning is complete, the construction phase begins. For most kitchen extensions, Simply Extend completes this stage within 12–16 weeks, depending on the size and complexity of the project. The main steps include:

  • Groundworks: Excavation and foundation work to create a stable base for your extension.

  • Building the Structure: Constructing walls, roofing, and windows to create the shell of your new space.

  • Utilities and Services: Installing plumbing, electrical wiring, and heating systems as needed.

  • Internal Work: Plastering, insulation, flooring, and preparing the interior for your kitchen fit.

Our experienced team coordinates each stage carefully to keep the project on schedule and minimise disruption to your home.

Simply Extend | Open-plan kitchen with kitchen table and bifold doors | London

Kitchen Installation and Finishing Touches

After the main build is complete, your new kitchen is installed. This includes:

  • Fitting cabinets, worktops, and appliances.

  • Painting, decorating, and completing finishing touches to ensure a polished look.

  • Final inspections to guarantee everything is safe, functional, and up to our high standards.

By handling all aspects of the project—from design and planning to construction and decorating—Simply Extend ensures your kitchen extension is completed efficiently, typically within 12–16 weeks.

Why Timing Matters

Knowing the timeline helps you plan your life around the build. While kitchen extensions are exciting, they do involve temporary disruption, and being aware of the 12–16 week timeframe allows you to make arrangements for cooking, storage, and family routines.

A kitchen extension is a significant investment, but with careful planning and a professional team, the process can be smooth, timely, and stress-free. At Simply Extend, we manage every stage of your project—from the first design meeting to the final finishing touches—so your kitchen extension is delivered on schedule, beautifully finished, and ready for years of family use.

If you’re considering a new kitchen extension, our 12–16 week timeline provides clarity, confidence, and peace of mind while transforming your home into the space you’ve always wanted.

Share this:
Facebooktwitterredditmail