Beautifully built extensions, refurbishments & bespoke homes across Sussex.
Considered design, traditional craftsmanship and a single point of contact from first call to final handover. Honest advice from a Sussex builder who has been doing this for thirty years.
- ✓ One point of contact, start to finish
- ✓ Transparent, itemised quotes
- ✓ Free, no-obligation consultation
- ✓ FMB accredited
One point of contact
Anthony personally manages every project, from the first conversation to the final walk-through. No call centres, no handoffs.
No hidden surprises
Detailed, itemised quotes. Clear timelines. Straight answers about what is and isn't possible, including the bits other builders won't tell you.
Proper craftsmanship
Thirty years building across Sussex. Sussex Heritage Award winners. Trusted by homeowners who care how things are made, not just how they look.
Extensions, refurbishments
& bespoke builds.
From a single-storey kitchen extension to a full house refurbishment or a ground-up new build. We take on projects across Sussex where craftsmanship matters.
House Extensions
Single & double-storey rear, side-return, wrap-around and over-structure extensions, designed to feel like they were always there.
Full Refurbishments
Whole-house refurbishments that bring tired layouts up to modern, comfortable living standards, without the project becoming a nightmare.
Bespoke New Builds
Ground-up homes designed and built to your brief, combining contemporary performance with character that sits well in the Sussex landscape.
Kitchen Extensions
Open-plan kitchen-diners with rooflights, glazed gable ends, bifolds and a finish quality that will still look right in twenty years.
Loft Conversions
Dormer, hip-to-gable, mansard or velux conversions that turn unused roof space into the bedroom, master suite or office your house needs.
Garden Rooms & Annexes
Self-contained annexes, home offices, gyms and garden studios, built properly with foundations, insulation and finishes to match the main house.
Planning an extension or refurb? Start with a conversation.
Built on relationships, not handoffs.
"On every job we do, I'm the person you'll deal with from the first call to the day we hand over the keys. That's how I think it should work."
Anthony Ackerman founded CDMS Sussex on a simple principle: clients deserve a builder who listens, gives honest advice, and stays involved at every stage. Thirty years of building in Sussex, from kitchen extensions and loft conversions to full refurbishments and listed building restorations, taught him exactly where projects go wrong, and how to avoid it.
Every project is run personally. The team behind him have worked together for years and hold themselves to the same standard. Materials are chosen for longevity, the site is kept clean and respectful of where you live, and difficult conversations happen early, not at the end.
Three steps to getting started.
No pressure, no jargon. A clear, practical path from your first call to a completed project.
Initial conversation
Tell us about your property, your budget and what you want to achieve. We'll give you practical, honest feedback over the phone or by email. No obligation.
Site visit & quote
Anthony visits the property in person, talks you through what's possible, and provides a detailed, itemised quote. No hidden extras and no high-pressure follow-ups.
Build & handover
Once we start, Anthony is on site and in regular contact throughout. Weekly updates, a tidy site, and a proper walk-through at the end before we hand the keys back.
Recent projects across Sussex.
A small selection of recent extensions, refurbishments and bespoke builds. We'd be happy to walk you through more of our work on the call.
Trusted by homeowners across Sussex.
Most of our work comes through recommendations, from people who have lived through one of our projects and would do it again.
"Tony and his team are highly professional, deliver on budget, and help you make the most of your budget. They have an excellent eye for detail and finish, and are helpful blokes."
"We instructed CDMS to remodel our 1980s semi. We wanted open-plan living with a high-end finish. Tony's team were clean, tidy and respectful at all times. Their excellent work has resulted in us owning our dream house. We couldn't be happier."
"Have used Tony since he first started. Various projects, large and small. Every one tackled with the same enthusiasm and attention to detail. When snagging has arisen Tony has always ensured the job is finished entirely to our satisfaction."
Tell us about your project.
Whether you're planning a rear extension, a full refurbishment, a loft conversion or a ground-up build. It starts with a conversation. No hard sell. No pressure. Just honest advice from a builder who has been doing this in Sussex for thirty years.
- ✓ Free, no-obligation consultation
- ✓ Personal response from Anthony within 24 hours
- ✓ Itemised, transparent quotation
- ✓ Covering Sussex and the South East