Need more room without the upheaval of moving? Apex Lofts & Construction designs and builds house extensions for homeowners in Brighton, Worthing and across West Sussex. Whether it is an open-plan kitchen, a home office or an extra bedroom for a growing family, we help you get more from the home you already have.
Every family’s needs are different, and your home should reflect that. Our team works closely with you to design an extension that enhances the way you live, today and tomorrow. From creating sociable kitchen-diners to building quiet corners for remote working or relaxation, we tailor every detail around your goals.
A well-planned extension gives you the extra room you need without leaving the area you know. Whether you are extending outwards, upwards or both, we make sure the new space ties in with the existing structure, so it looks like part of the house rather than an add-on.
Apex is based in Worthing and builds house extensions across West Sussex and into Brighton and Hove. We run each project as design and build, so one team takes you from the first site visit through to handover, with trusted partners brought in where the design needs them.
On the design side, we work with trusted architectural partners to produce your technical drawings, and we can prepare and submit a planning application or a Lawful Development Certificate on your behalf. If you already have plans, we can build from those instead.
Every extension is built to current Building Regulations and run under CDM 2015. Planning rules vary from one property to the next, so please confirm the planning position for your home with your local council (Brighton & Hove City Council or Worthing Borough Council, for example) and speak to a surveyor about any Party Wall requirements before work starts.
Ideal for expanding kitchens or living areas into the garden, rear extensions are a popular way to enhance your ground floor living space.
A side return extension builds into the narrow strip beside the house, opening up the interior and creating a brighter, more spacious layout.
A combination of rear and side extensions, offering maximum space and flexibility. Perfect for open-plan kitchen-diners or multi-functional family areas.
Need space upstairs as well? A double-storey extension adds bedrooms, bathrooms or a home office on both floors, making the most of the garden space you build on.
Whether you’re after a sociable hub for cooking and entertaining or a relaxed lounge area, we design and build extensions that transform how you use your home.
From loft conversions to full refurbishments, we help you make the most of your home’s space, flow and value, with solutions designed around how you live.
With decades of hands-on experience and a West Sussex base, we’ve transformed countless homes and commercial spaces throughout the region.
Our in-house team and specialist partners deliver high-quality results backed by a commitment to compliance, attention to detail, and long-term performance.
We begin with a no-obligation visit to assess your property and discuss your ideas. We’ll help you explore the best options based on your budget, layout, and planning constraints.
If you need drawings, we work with trusted architectural partners to design your extension, and we can prepare and submit the planning application or Lawful Development Certificate on your behalf.
You’ll receive a detailed quote and schedule of works, with no hidden extras. Every aspect of your extension is accounted for, from groundwork and structure to electrics, heating and finishing touches.
Your dedicated project manager will oversee the entire build and keep you informed throughout, so you always know what is happening next.
We carry out full quality checks and snagging before handover, ensuring everything meets specification, safety standards and your satisfaction.
Our relationship doesn’t end when the build does. We’re on hand for ongoing support and aftercare should you need any follow-up or maintenance advice.
Book a Free Consultation with Apex
If you’re ready to expand your home, talk to the team at Apex Lofts & Construction. From the initial design right through to the final coat of paint, we’ll guide you every step of the way.
Not always. Many single-storey extensions fall under permitted development rights if they stay within set size and height limits, but listed buildings, conservation areas and larger or double-storey designs often need full planning permission. We can prepare and submit the planning application, or a Lawful Development Certificate to confirm a permitted development build, on your behalf. The planning position always depends on your property, so please confirm it with your local council before work starts.
It depends on the size of the extension, the design and the planning route, so we do not give a standard figure. We set out a realistic programme for your project once the design is agreed, and keep you updated throughout the build.
A well-designed extension that improves the layout, or adds space buyers look for such as an open-plan kitchen or an extra bedroom, can make a home more appealing when you come to sell. How much it adds depends on your property and the local market, so a local estate agent is the best person to ask.
In most cases, yes. We work to minimise disruption wherever possible, and many of our clients remain at home throughout the project. For larger or more invasive works, we’ll discuss practical arrangements during the planning stage.
Absolutely. We carefully match materials, finishes, and architectural details to ensure your new extension looks like a natural part of your home.
Yes. Apex is based in Worthing and builds extensions across the town and its neighbouring areas, as well as in Brighton and Hove and the towns along the coast in between. The first step is a free site survey at your home, where we look at the options with you and talk you through the planning route.
Yes. Every extension is built to meet Building Regulations, covering structure, insulation, fire safety, ventilation and electrics. Building Control checks the work at key stages, and we make sure it is ready for each inspection.
Yes. Apex offers a design and build service. We work with trusted architectural partners on the design and technical drawings, and we can prepare and submit a planning application or Lawful Development Certificate on your behalf. If you already have drawings, we can build from those. Please discuss any Party Wall requirements with a surveyor before the build starts.
Yes. All work is backed by appropriate guarantees, and we provide full aftercare following completion. We’re always on hand to answer questions or resolve any issues, even after the project is finished.
Every extension is unique, and costs vary based on the scale of the build, the materials used, and the level of customisation involved. After an initial site visit and consultation, we’ll provide you with a detailed, transparent quote tailored to your project, with no hidden extras.
