Our Team

We have seven dedicated build teams supported by our project management and administration staff.

Technical Director
Rafael Delimata

Rafael Delimata is an extremely experienced professional who has spent many years project managing a wide range of construction contracts. He is proud to specialise in low energy, sustainable housing, and in bringing innovation, imagination and technical excellence to your dream home.

Finance Director
Magda Delimata

Magda has held the financial fort since she joined BTC in 2011 as a graduate of finance accountancy. Her role from basic bookkeeping and reconciling payments has advanced strategizing for company growth. She is happy being part of a company that makes a positive contribution to the environment. She enjoys swimming and conquering her fears.

Innovation Director
Hagop Heath-Matossian

As a certified Passivhaus designer with a masters in commercial real estate and a Permaculture design qualification, Hagop has a balanced scientific approach, commercial sensibility and socio-environmental awareness. He sees Passivhaus as the future of housing and energy usage reduction and leads our Energiesprong work. He is a keen wakeboarder and musician.

System Administrator

Maciej has IT and management experience. He looks after our cloud data storage, computer systems, tablets and smartphones and ensures our IT infrastructure is ready for whatever we throw at it. He is our in-house Loxone specialist and programmer. He is a keen paraglider.

Project Manager
Justyna Krol

Justyna has a degree and masters in architecture and is working on her part 3 at Bath University. She appreciates the collaborative approach to design and construction at Bow Tie. She is passionate about restoring historic buildings and is particularly keen on Georgian and Victorian architecture. She enjoys rock climbing, drawing and painting.

Project Manager
Tom Dudziak

Tom looks after our new-build projects. He enjoys planning out and delivering low-energy construction. Has has MEng (Civil Engineering), Chartered Engineer CEng, MICE, PMP certification. The biggest project he led before joining Bow Tie was valued at £5M and the biggest he worked on was £1.3 Bln. He is an outdoor swimmer (even in winter!) and likes snowboarding.

Electrical Supervisor

Our in-house qualfied supervisor, Ben undertakes technical planning and supervision of all our electrical installations. He is also our home automation engineer with excellent experience of Loxone. He ensures that our standards of quality control for Passivhaus run through all our projects. He is an amateur light aircraft and glider pilot. He loves swimming, snorkelling and diving.

CAD Technician
Mircea Ciorapciu

Mircea draws out our new-build elements prior to us starting on site. This allows us to detect potential clashes and order high value items with surety over the dimensions. Mircea is a civil engineer with a masters in construction management and technology and management. He is passionate about sustainability.

Purchase Ledger Clerk

With a masters in economics and finance, Aga is our purchase ledger clerk. She supports our foremen and management by ensuring our project management platform stays up to date. She is also paraglider, often  travelling to Europe to enjoy her hobby.

Working Foreman

One of our most loyal and experienced builders, Slawek also has excellent spray foam insulation knowledge. He comes from a long lineage of butchers and is our in-house sausage sommelier. Did we mention that he likes sausages?

Office Administrator

Debbie has many years experience in construction, bookkeeping and account administration. She is the backbone of our office and will be happy to assist you with any enquiries. When not working she enjoys spending time with her children, walking with her two dogs, reading, cooking and knitting


Site Manager

Joining us a builder some years ago, Damian has risen through the ranks and is now one of our most trusted and experienced site managers. He has excellent knowledge of construction skills and knows how to achieve a fine finish. He led the team at the RIBA and SECBE nominated Camden Mews Passivhaus

Our Recent Projects

  • “Bow Tie Construction were very professional, they did things to a very high standard and paid a lot of attention to detail. When small issues were flagged here or there they were always keen to investigate and fix them.”
    — Francis M
  • “We’re expecting a dramatic reduction in costs. We now know how much energy we’ve used (in March) and we rarely have the heating on compared to this time last year in our old house.”
    — Toni M
  • Your guys did a very good job on the [window] installation, nice and precise and the assemblies fitted perfectly....Very good silicon application too, with a nice 5mm joint. So please do thank them on behalf of Cristina and myself. We are very pleased.
    — Stephen M
  • "We’re really lucky to have them Bow Tie Construction working on our project. Thanks for all your fantastic work so far."
    — Nick H
  • "I’ve been very pleased with how Bow Tie have got on with the work."
    — Justin Bere