Your home should reflect your vision and enhance your lifestyle. With over 25 years of experience in property development, we work closely with you to create spaces that go beyond bricks and mortar, transforming them into your dream home.
Our passion for thoughtful design and quality craftsmanship can be seen across Sheffield. We specialise in revitalising properties with a deep respect for their history while adapting them to modern needs. We’re not just property developers – we’re here to help you bring your ideal living space to life.

Transform your property with a bespoke extension designed to enhance both space and style. We create luxury extensions tailored to your unique vision and reflecting your personal taste. Whether you’re looking to expand or elevate, we’ll help bring the perfect space to your home without the hassle of moving.
Looking to expand your living space and value to your home? A loft conversion is a cost-effective way to transform unused space into a functional, stylish area for your family.
Whether you’re looking for a new bedroom, office, or living space, our expert team can advise you on enhancing your existing structure to create the perfect home.

We had a fantastic experience with SDP. James and his team knocked through our lounge and kitchen last year, this involved obtaining structural engineer's calculations, knocking through the brickwork, putting in steel support then arranging building regulation sign off. This was finished by 'making good' including plumbing a new radiator, re tiling the floor and re plastering. The work was carried out to the highest standard and from start to finish the process was smooth. What really impressed me was how specific James and his team were with the timeline of events and when they would occur so we could adequately plan ahead and his team are really friendly. We are already planning on using SDP again when we extend our kitchen later this year. I cannot recommend them highly enough!
Michael Parry – Dore
"I selected SDP to undertake a redevelopment and extension of the rear of the ground floor of my 100 year old semi because James approached the project in a very professional manner, explaining that he supplied a price, not an estimate, he gave a timescale and guaranteed daily visits to my house to project manage the work. There were inevitable little hiccups but nothing that James and I could not discuss and sort out. It was most helpful that James was always on hand so that queries could swiftly be dealt with. Together we could talk through tweaks to the plans. James employs a team of very polite, considerate and caring workers who always treated the house as my home, not as a ‘building site’. As well as this team James also hires in skilled artisans which has resulted in a completed open-plan family room/kitchen/dining room along with a loo and utility room that exceeds my original hopes and plans. I can highly recommend James and his team to anyone considering renovation work, large or small."
ANGELA ANWYL – TOTLEY, S17
"We found Sheffield Properties Development efficient, effective and value for money. James kept us informed of who was coming and when. He also solved any problems that occurred there and then. We didn’t have to wait long for answers or solutions. His teams did a good job and were reliable, personable and hard working. Our new extension is a delight and it’s almost impossible to tell that it is new brickwork from the front of the bungalow. We are planning to do our kitchen next year and will be using this firm again. Regards Christine"
CHRISTINE FERRIS – TODWICK, S26
"I would like to say that I only have praise for the team that completed my insulation work in my roof/attic. All work was completed within the specified time and on budget with a friendly manner, James was on site to check all work was on schedule every day. Cleaned up after themselves everyday & was polite punctual. I would recommend them to anyone."
MRS NUNN – MALIN BRIDGE, S6
"From the start SDP were professional and filled me with confidence about the standard of their work. James was friendly and helpful in getting exactly what needed doing sorted and timely in all his responses throughout the project. The on site workmen were friendly, reliable, helpful and did a fantastic job. I am really happy with the standard of the work and would recommend them to anyone. My house looks exponentially better than it did as a result. Kind Regards, Adam Wood"
ADAM WOOD – HILLSBOROUGH, S6
"Hi James, Many thanks for these fantastic photos. They do indeed look brilliant. It really does put my amateur efforts in to place but on the other hand they show our home in the most wonderful way. Let us also take this opportunity to thank you and your team. We are absolutely delighted with what you and your guys have done. You have helped us realise our vision for our dream house. From the outset we were confident that you would be able to deliver what we wanted, on schedule and within budget. The format of payments was excellent. We really appreciated your “can do” attitude and the way we were able to add items into the schedule as we realised that we needed to do more to our house to make it into our home. The finished quality of what you have done is wonderful. Your guys have been a pleasure to work with and we thank you for the care that they took working in our home. Also, watching your guys tackling some of the more ‘difficult’ tasks was truly exciting. Working through the development of the project, day by day with you on site, has been a pleasure , your attention and sense of humour have ensured that it has been a really great build. We have really enjoyed our time with you and your guys and want to thank you all so much for building our dream. We are so pleased and delighted that everyone who walks in goes WOW! Best regards, Jim & Adrienne"
JIM & ADRIENNE HUNT – WHIRLOW, S11
"We contacted SDP to do a house inspection for us prior to buying our first house. James was very helpful in taking us through the potential works identified in our Home Buyers report and associated costs and risks. Once the house purchase was complete we took up SDP’s offer to undertake some works to the timber in our cellar. The work was completed in a professional manner and to a high standard and SDP could not be beaten on price by the other companies that we considered. Overall we were very pleased and will definitely consider SDP for future works. Kind Regards, Andy & Liz."
ANDY & LIZ, BRINCLIFFE, S11
"I bought my house a few months ago and needed some work doing. I have never heard about SDP and when I did meet them they gave my a very professional service. James listened to me and was very passionate about the project as just as me. I am delighted with the work that he has done already and look forward for him to work for me in the future. Thanks James. Christine"
CHRISTINE DALEY – TOTLEY, S17
"Having decided to finally go ahead with an extension and major redevelopment to our property, we engaged SDP to undertake the work on the basis of recommendation from other people and we are totally happy with the finished product. The work, a full-width single storey extension with, the existing floor-plan being changed from a separate kitchen/dining room into 1 large open-plan living space, was managed by James brilliantly, with every detail of the plans/schedule being made available to us before the work started. James attended almost every day, keeping us informed of expected progress. The team(s) James employs are professional and helpful. A pleasure having SDP do the work and would happily recommend."
RICHARD & LOUISE BOLTON – MILLHOUSES, S7
"Hair Salon Design Set Up. My Project was to set up a hair salon on the first floor of the striking and iconic ‘Sinclair Building’ in Sheffield City Centre. The Sinclair name itself is synonymous with quality, taste and a name ensconced in the history of Sheffield so the quality and finish of the project had to match the quality of the Sinclair’s store. SDP understood this from the start and James Clarke (Managing Director) project managed it personally from day one. The main reason I chose SDP was that I needed a diverse range of trades, joiners, plumbers, electricians, tilers and floor layers and SDP have highly experienced personal in house, who regularly work on “Blue Chip” projects..so I didn’t have to wait for a contractor to “fit me in” between jobs. The other unique factor for using SDP was that they also fabricate designs from stainless steel which was exactly what I wanted, as I needed shelving, sinks and panelling making to bespoke specifications out of metal. Working with James Clarke was an very enjoyable experience and I enjoyed the project immensely..there were no major problems, the project was finished bang on time and with no overspends! I would rate SDP ten out of ten and will be using them for my next shop and all future work on my house. Duncan Gillespie The Cutting Club"
DUNCAN GILLESPIE – CUTTING CLUB HAIR STUDIO, SHEFFIELD
"After hearing good things, I contracted James and his team to do some considerable refurbishment work on one of my student terrace houses. The property needed a full loft conversion, a refurb of the main bathroom, bedroom, and dining room, and a totally new kitchen. Not only that – but with it being a student property we only had the small window of the summer holidays to get everything looking tip top again in time for the new academic year. It was a tall order but the job was completed to highest standard and with complete efficiency from the whole team at SDP. I couldn’t be happier with the work. Everything was completed on schedule, and with total transparency from James about where we were at, at every stage. Because of the terms and conditions drawn up in advance, I knew the exact schedule of works. Payment was spread across the duration of the project and there were no hidden costs. SDP also sourced the kitchen themselves, using my specifications – which was a massive weight off my shoulders. The team were always punctual and polite. All in all, I couldn’t recommend them highly enough."
TONY DOUBLEDAY – HILLSBOROUGH, S6
"After looking around various kitchen design webpages and talking to people, the website for SDP caught our attention because of the bespoke design aspects and the quality of the workmanship. At our initial meeting with James, we were able to explain what it was we were seeking and he was able to advise and make suggestions. This collaborative approach was also taken when we met Steve the kitchen designer. From our first meeting to the completion of the project, continued close communication meant the project ran smoothly and we were aware of what was happening at each stage. James was an excellent project manager, liaising with various trades, electricians, plumbers, plasterers, kitchen fitters, flooring, to ensure the work was done to the agreed timescale and to a high standard and finish. The final result is exactly what we wanted with a few additional ideas from the design team. All of our friends who have visited echo our appreciation of the quality design and workmanship of our new kitchen which we are delighted with. We would highly recommend the work of SDP."
BRYAN & TIM - NORTON LEES, S8
"We first met James when we went to view a house he refurbished on Cobnar Road, Woodseats. We liked him and were so impressed with the work his team had done that we didn’t need to think twice about who to call when we wanted an extension on the back of our house. James was on hand with help and advice from the very beginning right through to completion of the project. He introduced us to Ahmed, his architect (Nada Architects), who drew up some great plans for us and dealt with the planning permission. Once the building work began, James visited nearly every day to make sure everything was going well. His team of workmen were extremely hard working and polite. They arrived on time and at the end of each day they tidied up before leaving. Their work was of a very high standard, as we knew it would be. It was a pleasure having the whole SDP team around. We are absolutely delighted with our new extension and it has significantly improved the quality of our living space. It is modern and tasteful and integrates well with the rest of the house. It looks attractive from the outside as well as on the inside. We can recommend James and his team, without hesitation, for any building or refurbishment work. They are competitively priced without compromising on quality. It is good to know that we can call on someone we trust when we need more work doing in the future."
JULIA NEWTON – BRINCLIFFE, S11
"Dear James I just wanted to thank you and your team for a great job carried out on my property. I felt that your quote was fair and that I was kept up to date with proceedings and felt included in decisions to be made during the project. I also felt that your team were timely, polite and clean, taking care to clean up after themselves. I particularly liked the fact that you managed the project bringing in tradesmen when required to ensure minimal wasted time and that you finished on time and in budget. Thankyou for a job well done and I wish you the best for you and your team. Jamie Denholm"
JAMIE DENHOLM – TOTLEY, S17
SDP recently completed our loft conversion, from start to finish they were superb! James and the team were incredibly open minded and friendly, they listened to all of our requirements. They kept us up to date with all progress and any amendments / changes which were required they offered options along with the pro / cons to each choice. Each day we were made aware of what they were doing and progress which had been made. They ensured the site was tidy and clean after each visit, which was important as we had to live in the house during the conversion. The finish was amazing and we would highly recommend them to anyone doing any building work. Absolute pleasure and we will always look to use them in the future.
James Wilson – Old Tupton, Chesterfield
We heard about James and SDP through a recommendation, so arranged what was a very friendly and informative meeting. We received a quote from him that was good value and comparable to other quotes received. We chose James because the finishes on the pictures on his website certainly looked impressive, and for the personal touch that was already apparent. This was also true of Steve, who designed the kitchen, and who was equally friendly and full of ideas. Nothing was too much trouble throughout the project, which was completed quickly and in a highly efficient way. We were in very regular contact with James, who was incredibly accommodating of anything we asked, and offered plenty of good suggestions, always looking to minimise costs as well as deliver a quality product. An example of this was a suggestion to alter the original design to incorporate a goalpost steel and remove a large pillar – something we didn’t think was feasible. He did this despite additional pressures on his team’s schedule, and kept costs down as much as possible. The end result was phenomenal - and hugely appreciated - transforming the space into a stunning kitchen diner that has wowed everyone who has visited since. Throughout the project, we were kept completely informed of timescales and what was happening next, and this was all done with a great degree of humour – the relationship developed between us and his team into a really close one. All of the numerous guys who worked on our extension were friendly, polite, clean and highly skilled. The end result has transformed our lives. It’s the first extension we’ve had done, and we were full of trepidation, but the whole experience was far less stressful than we imagined it would be; a major factor in this was that way that everything was managed via James as our main point of contact (although the various workmen were equally accommodating whenever we asked anything of them). All in all, I would highly recommend James and SDP. It’ll be the bathrooms next! Cheers bud Matt
Matt & Jane Loader – Whirlowdale Road, S11
We engaged SDP to build a single storey kitchen/dining extension which they completed in April 2017. The project was managed very effectively by James and the team, to ensure completion within projected timescales, to budget and without any compromise on quality. Without exception we were impressed with the competence of all the tradespeople engaged on the build and their helpful approach to resolving any issues which arose. We are very pleased with the finished product and wouldn't hesitate to recommend SDP.
David Howarth – Bents Green, S11
"Thank you very much for all at SDP Ltd who have recently refitted our kitchen and carried out building works to make our kitchen and dining room open plan. The work was carried out to a really high standard and all of the workmen who attended our house were friendly and professional and left the house tidy once they had finished each day. The work they have carried out is fantastic and we are really glad that we instructed SDP to carry out the works which were all organised for us from start to finish. Thanks James. Lindsay"
LINDSAY COATES – RIDGEWAY, S12
"We contacted James after a recommendation from someone who had used SDP previously. We were looking to replace our kitchen and create some extra space via the removal of some adjoining walls. James and Steve were extremely helpful in terms of proposing different options, whilst always looking to meet our requirements. The final layout has meant much more than just a new kitchen. We feel like the rear of the house has been completely revamped, giving us a more airy, spacious, functional and modern kitchen / dining / entertaining space. Having also added some additional work to our roofed conservatory (underfloor heating, bi-fold doors and seamless flooring), like many of the other testimonials on this site, we too are receiving lots of ‘wows’ from visitors. A small extension to the front doorway was also carried out by SDP – this was also done to a high standard and has left us with a far more practical space. We would certainly recommend James and his team – who were all extremely helpful and friendly. As our children grow up and we seek some additional refuge, I’m sure we will be back in touch re a loft conversion !!"
NATALIE & ADAM – SHEFFIELD, S20
James and his team have just recently completed renovation work on our new home. The house was extremely dated, so required a new kitchen, new bathroom, as well as a lot of other work (knocking down a wall, moving an existing wall, changing a cupboard to a doorway, new boiler, changing a door to a window, installing French doors, removing a porch, new front door). From start to finish, the installation was seamless and completely stress free. On top of this, the work was completed on time! James organised all of the work to be completed by day, and managed the entire project. James put us in contact with Steve, the kitchen designer who listened to every aspect of our needs, and created a bespoke kitchen. Cannot rate this team highly enough - they are trustworthy, reliable, completes the work to the highest standard, and is constantly on standby to answer any questions. The house was always left clean and tidy. Overall, we are so impressed with the quality of the work, we will undoubtedly be having SPD back to complete further work on the house. Thanks so much!
Emma Sheehan – Stannington
Here at SDP we like to work with property that comes in all shapes and sizes, from work spaces to places to live, and create buildings where people want to spend their time. That’s why we are passionate about creating beautiful, high quality property for sale or rent.
'Our vision is to establish a brand which is synonymous with luxury, quality and the highest standards of living' - JAMES CLARKE, MANAGING DIRECTOR



