Property Extensions in Chichester, Worthing and the Nearby Areas

Property extensions are built for a number of uses in Chichester and Worthing. Our builders cover everything from conception and planning of extension projects to supplying materials and completing construction. Available space, budget and permissions are our only limitations. Whatever you hope to achieve with property extensions in Sussex, contact Phase One Build for professional service and advice.


The first thing to consider when considering an extension is whether work will require planning permission. Many property extensions in and around Worthing fall under permitted development and do not require approval from the local authority. However, there are strict guidelines surrounding permitted work. Phase One builders ensure construction follows relevant rules.


No matter the job, our team of specialist tradesmen deliver bespoke installations, advising on all aspects of the project. This includes:


  • Extension Styles
  • Regulations and Controls
  • Materials
  • Windows
  • Plumbing and Electrics
  • Decorative Touches


Our qualified builders consult with customers to find the best solution for domestic and commercial spaces in Chichester and the surrounding areas. While this will depend on individual project restrictions, you will find information about the most common extension styles below.

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These are typically built onto the back or side of a property but can extend forward if you have appropriate planning permission. Rear property extensions are perfect for opening up kitchen/diner space. Modern features, such as bi-fold doors, connect interior living space with the garden for maximum effect.


If you do not have room for an extension, loft conversions are a great way to meet your needs without compromising on garden space.


Customers in Chichester and Worthing can even personalise the roof of property extensions, but it is important to consider the overall design of the building. Additions should blend in with surrounding properties to meet regulations, and to provide a more pleasing finish for customers and their neighbours.




Multi-storey property extensions offer a considerable amount of extra space. Our builders can either enlarge existing rooms or construct completely new ones. While popular, this type of extension requires more complex planning approval.


Due to the height of the build, its effect on neighbouring properties must be taken into account. Property extensions can’t cause a serious loss of sunlight to rooms or gardens of adjoining houses.


Phase One Build’s full management services ensure every job in Worthing and Sussex meets regulations and fulfils your needs. Take a look at previous customer testimonials to discover why we are such a trusted company.




If you have a single-storey side garage, it may be possible to extend over the structure. This prevents customers needing to give up garden space to rear property extensions. There is also the option to convert the existing garage at the same time.


Whether attached or detached, our builders convert underused garages throughout Chichester into offices, gyms, dens, or any other space you need. Work on detached garages often needs planning permission, but Phase One builders discuss this during consultations.


Not all garages are suitable for property extensions and conversions. Hiring reputable builders, such as Phase One, ensures any construction to properties in Chichester and Worthing is suitable, safe and expertly crafted.

For multi-purpose property extensions in Chichester, Worthing and the nearby areas, call 01903 916 584, 07730 006505 or 07938 433186.

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Property Refurbishments in Chichester
Builders in Worthing
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Property Extensions in Worthing
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