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Building award winning spaces

Sienns Developments are award-winning specialists in loft conversions, extensions and renovations, you can rely on us to guide you through every step of your project.

We understand that just because we are experienced in building and converting lofts this doesn’t mean you will automatically know the process, so we take care to make sure you always know what is going on, what will happen in what order, and how long things will take.

We take pride in providing our customers with expert advice throughout all construction phases. We take a modern approach using all the latest building techniques and materials and our team is dedicated to high-quality workmanship. We will design and look after all your planning needs when required.

The team are always fully qualified in their trade, i.e. All electricians have all levels, including NIC EIC, Plumbers and Gas technicians are always Gas Safe, Bricklayers have a minimum of NVQ level 2 Qualification, etc.

Take a look at the tabs to find out more about what we do.

A room in the sky

Loft Conversions

Building up is a great way to gain some extra space, for a bedroom or a home office, whatever you need the space for, we’re here to help.

Lofts are our speciality, we don’t mean to brag but we’ve won awards for our loft conversions and we believe we’re the best in the business to help you realise your loft(y) dreams! You can take a look at some of our past projects here.

As is true of any extension to your property, the return on investment can make loft conversions one of the best investments you can make in your home and we’ll be there every step of the way with you.

You can take a look at some of our recent projects below.

If you’d like to explore your lofts potential, give us a call or drop us an email, we’d be happy to talk to you about any project you had in mind.



Kitchen too small? Need more room? Building out is a great way to get that extra space for all the family to enjoy. Why move home if you can extend your property with either a single or double storey extension.

Extensions can provide a great return on investment, not only increasing your property value, but also improving your quality of life, making the space in your home work better for your needs.

Some of the services we offer include;

  • New builds
  • Garages, porches, conservatories
  • Special needs adaptions

You can take a look at some of our recent projects below or drop us a line or give us a call to find out how we can help bring more space into your life.



Got yourself a bit of a ‘doer-upper’? We can help breathe new life into those bricks and mortar. Whether it’s your current family home or a new purchase, sometimes a complete overhaul is the best way forward.

We are always on hand to give you the advice you may need to make sure what you want to do with your home, can be done.

Renovation/Refurbishment works are a pleasure to work on as the final outcome of the project can be very rewarding.

Some of the renovation services we offer include;

  • Fitting kitchens, bathrooms, en-suites
  • Plastering, rendering, tiling
  • Decorating, interior, exterior
  • All carpentry works from skirting boards to hanging doors, worktops
  • Staircases, wood flooring
  • Fascias, soffits, guttering
  • All plumbing services, boiler installations, open fireplaces
  • All electrical services, full re-wire, new consumer unit
  • Structural building
  • Converting buildings into flats

Take a look at some of our recent projects below.

We’d be happy to talk to you about any project you had in mind, just give us a call or drop us an email.


Project Gallery

Need some inspiration? Take a look at some of our most recently completed projects.


Working together

We use registered associations, working in conjunction with the below contractors

Creating award winning spaces

We’d love to help you make the most of your home. Get in touch to have a chat about your plans or to arrange a free, no obligation quote. We look forward to creating something amazing together!