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Our Team

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

Project Manager

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. He is an insulation and Passive House specialist and heads up our R&D projects.

Magda Delimata
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.

Damian
Project Manager

Damian

Joining us a builder in 2014, 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 Max Fordham House. He holds GNVQ level 3 in construction site management.

Ewa Szatkowska
Project Manager

Ewa

Ewa brings a unique perspective to our team with her background in architecture and the recent completion of the prestigious Level 5 Retrofit Coordination and Risk Management course. Passionate about sustainability, Ewa firmly believes that homes are sacred spaces where every detail should reflect the essence and personality of those who dwell within. Embracing collaboration and effective communication, Ewa champions the idea that great achievements stem from cohesive teamwork. With a rich background in high-end construction, particularly in London, Ewa approaches each project with a commitment to excellence, believing that less is indeed more.

SITE MANAGER

Michal

Introducing Michael, our esteemed Site Manager, whose journey into construction commenced amidst the vibrant environment of Building Hall Mark Estate, where he immersed himself in the industry. His passion for joinery ignited there, laying the groundwork for his specialization. With a Level 4 NVQ Diploma in Construction Site Supervision and SMSTS certification, Michael boasts a solid foundation of knowledge. His track record speaks volumes, including his pivotal role in the award-winning Notting Hill Deep Retrofit project. Under Michael’s guidance, expect nothing less than excellence. His dedication and expertise ensure your project is in capable hands, poised for success.

Adrian Wysokinski
Site Manager

Adrian


Adrian, the dynamic force propelling our construction projects forward. With a solid foundation in architectural education and a wealth of experience gleaned from diverse construction sites across London, Adrian’s journey commenced as a skilled joiner at Bow Tie, where his exceptional talent captured the attention of Rafael, propelling him into the esteemed role of Site Manager. Adrian has undertaken numerous courses to elevate his skills and knowledge. A standout achievement in Adrian’s career is the successful completion of the Passive House project in Harpenden, showcasing his expertise in sustainable construction practices. Beyond the construction site, Adrian finds fulfilment in exploring the world’s wonders through travel and embracing competition in the volleyball league.

Slawek
Site Manager

Slawek

One of our most experienced builders, Slawek is also a certified Icynene insulation spray foam installer. His projects have ranged in value from £400k – £3.6M. He is excellent at motivating his team who always have a can-do attitude. He comes from a long lineage of butchers and is our in-house sausage sommelier and Christmas party DJ.

Aggie
Assistant Project Manager

Aggie

Our versatile Assistant Project Manager, ready to steer our project towards success. Supporting both the Site and Project Managers, Aggie brings a wealth of expertise to the table. In the tender stage, she meticulously curated and secured all quotations, laying a solid foundation for our project’s progress. As we move into stage two, her focus remains sharp as she leads the gathering of quotes and specifications with seamless coordination. With over eight years of experience as a buyer across various industries, Aggie’s skills are unmatched. Her keen eye for detail and adept negotiation make her a valuable asset. Leveraging this knowledge, Aggie is dedicated to sourcing materials and services at the best prices while maintaining strong relationships with contractors and suppliers. Rest assured, with Aggie at the helm, our project is in capable hands, poised for success every step of the way.

Vandana
Architectural technician

Vandana

With a degree in Architecture from India, Vandana has delivered many UK residential architecture projects to RIBA Stage 6 as well as projects in the renewable energy sector. She is passionate about design and build of green housing that helps reduce our CO2 footprint. She feels she is achieving this goal by working with Bow Tie Construction alongside a diverse team of professionals. She enjoys reading, playing keyboard, gardening, walking and hiking.

Aga
Finance Assistant

Aga

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 a paraglider, often  travelling to Europe to enjoy her hobby.

Leire
Architectural Technologist

Leire

Leire has always worked in the construction industry, mainly in the technical aspects of design. She appreciates the team  synergy at Bow Tie that allows each member to be authentic and contribute their own experiences, perspectives and talents. She feels that sustainable principles can be applied from the humblest projects to the more ambitious ones. These help to preserve the environment and improve people’s lives from diverse backgrounds anywhere in the world. Leire enjoys travelling, trekking and cooking Mediterranean food.

Our Recent Projects

Treadgold House

Notting Hill Mews House Retrofit

Max Fordham House

Reigate Passivhaus

    “Rafael Delimata project managed an extension and new kitchen to our Victorian house in 2010. (…) We found him polite and enthusiastic, and very quick to grasp what we wanted from the build – he has great communication skills. He was involved from the beginning and contributed useful ideas and suggestions throughout the project. He is particularly knowledgeable about green issues and we now have a kitchen/breakfast room which is easy and cheap to heat in the winter and cool in the summer. Our previous experiences with builders have not been good – we are demanding clients with backgrounds in interior design, so we are probably not the easiest of customers, but we would have no hesitation in working with Rafael Delimata again and would recommend him to others.”

    – Donald & Tania S

    “I have enormous respect for Bow Tie as a contractor: It’s a real pleasure not having constant battles and headaches from a builder trying to do the bare minimum.”

    – Justin Bere

    “Rafael demonstrated a great knowledge in respect of building work and was able to draw plans and give advice regarding interior design.”

    – Carole R

    “I took on Rafael and Bow Tie to do a large extension in my house with a significant amount of complicated work. Not only was the work done to exactingly high standards but during the negotiations Rafael made many excellent suggestions over and above the work done by the architect which resulted in a build which made more sense for the family, whilst remaining eco-friendly through clever reuse of original materials and inclusion of low-impact products. I did get the benefit of regular updates and involvement in the project so I could see the quality of the work. The company worked 7 days a week for many weeks to bring the project to completion in the shortest possible time, and within the timescale they had suggested. All the onsite employees were polite and meticulously tidy, doing their very best to fit in around us. They have been thorough and speedy in resolving snagging issues, and I can thoroughly recommend their work.”

    – Raza R

    “Rafael’s product knowledge and technical skills helped us solve many tricky problems and ultimately produce our dream home. Thanks Rafael!”

    – Zahid H