About us:
Hyssop Project is a construction company specialising in small to medium-sized residential and commercial projects.
We are also experienced project managers, so we can oversee the complete building process from planning and design through to construction and maintenance – saving you money and stress.
How do we do it?
Our priority on every project is to maximise the value and quality our clients get for their budget.
First, we get to know you and what you need from your project – be it a home improvement, extension, refurbishment or building a new dream home. 
Then we add value by identifying the best options and materials, and most ‘buildable’ solutions. Using our market knowledge, we negotiate keen terms, selecting the right workforce and suppliers.
We also carefully plan and sequence your build, and supervise the work so your project runs smoothly. This is how we control costs without compromising quality.
Our services
We are flexible and happy to work with your designers and engineers or to provide a design and build service, using our trusted partners.
Hyssop Project has many years’ experience in project and site management so we know how to plan works and manage specialist subcontractors. This is the key to delivering quality and value in construction.
Before your project starts, we put a lot of time and effort into planning the work and how it will be delivered. Our programme sequences each element to achieve the most timely construction possible.
We only use specialists – be they contractors or self-employed tradesmen, with relevant certification and/or a proven track record. This ensures a higher standard of workmanship.  
Throughout the project, we will keep you informed of progress, look for opportunities to add value and consult you on any potential modifications.
Our approach ensures:

Effective programming and timely progress
Good communications between all parties
Reliable on-site management
Openness to alternative solutions
High-quality workmanship and finish

Design & Build
We work mainly as Principal Contractor, but welcome the chance to contribute at the outset of a project. That way we can work with you to develop several feasible options and prepare planning submissions.
Early involvement also allows us to design with ‘buildability’ in mind, minimising construction costs and risks.

Trades offered

Builder general
Loft conversions
General extension
Bathroom fitter
House Builder
Custom/Self Build
General electrical work
Central Heating
Central Heating
Kitchen installation
General plumbing

Case studies


  • 30 Oct 2019


  • 30 Oct 2019

See more case studies

Customer reviews

11 Jan 2018

“The Hyssop Project people have the foresight, aptitude and commitment to working hard that delivers a better on-site building experience, whilst also appreciating the client’s needs and aspirations throughout the construction process.” - Justin W

Paddington, London

11 Jan 2018

I need two bathrooms altered quite significantly because of the illness of my husband and the work had to be completed within a short holiday period. Hyssop Project was recommended to me by an architect. Their work was done on time and to an extremely high standard. Neighbours commented that the workmen were all polite, helpful, tidy and efficient. When I returned home I found my flat clean and tidy, the bathrooms done as per specification, and no problems to resolve. I consider the cost to be fair and reasonable. Until recently I managed a number of properties for a landlord. I'm well aware of how one can be misled by builders. But I am happy to recommend Hyssop Project.” Private Client, Holland Park, London (Since the bathroom alterations we have replaced the box sash windows, installed underfloor heating in the main bathroom and fully painted and decorated the property and carry out general maintenance. We have also carried out 2no. full apartment renovations for this client.) - Private Client

Holland Park

11 Jan 2018

After almost a year of listening to unaffordable quotes and ridiculous timelines, my partner and I were nearly ready to give up on our architectural plans. Thankfully before we did, we found Sheahan Thorne of Hyssop Project. In the week leading up to Christmas, Sheahan came to our house, ran through the plans with us and did everything he could to make himself available. The project was intricate, and required imagination, creativity and "thinking outside the box” as we had a very tight budget. Sheahan was able to show us the options available, and different ways in which we could create our dream home without going outside the budget. At the start of the project, my partner and I were on holiday, but with Sheahan as Project Manager, we felt absolutely comfortable leaving him to do the work. We returned to a transformed house. Sheahan had followed our requests to the last note, and our dreams were entirely realised. The craftsmanship was so good, we asked Sheahan and his team to finish a number of additional, smaller projects. These involved electrics, plumbing, carpentry and tiling as well as building work. Sheahan personally managed our architects, the Council and building control. I cannot recommend Sheahan's team enough. I found them all professional, polite, trustworthy, hard working, and most importantly, incredible craftsmen. We look forward to using Hyssop Project for our next build." - Mrs G

Plumbstead, London

10 Jan 2018

“My firm has worked with Hyssop Project on many occasions. We are very happy to continue the relationship because we find them helpful, diligent and very co-operative. It is always a pleasure to work with firms that provide the sort of flexibility and constructive assistance that all architects wish to have. Hyssop Project is one of those firms.” - Terence

Knightsbridge; Holland Park; Nottinghill; London