21 ADD

21 ADD We create the future of construction

Who we are

We build a new quality of living

We aim to shape a new reality – one in which ecological, intelligent and more cost-effective construction becomes the standard rather than the exception.

Our company was founded out of a passion for developing innovative construction solutions that combine an interdisciplinary approach to architecture with environmental engineering and sustainable development.

Our goal is to provide everyone with access to comfortable, functional and environmentally responsible living space, whether they dream of a compact holiday home, a comfortable family house, or, as an investor, are considering the development of a hotel or a multi-residential building.

Kim jesteśmy?

Budujemy nową jakość życia

Pragniemy kształtować nową rzeczywistość – taką, w której ekologiczne, inteligentne i bardziej ekonomiczne budownictwo staje się standardem, a nie wyjątkiem.

Nasza firma powstała z pasji do tworzenia innowacyjnych rozwiązań budowlanych, które łączą nasze interdyscyplinarne podejście do architektury z inżynierią środowiska
i zrównoważonym rozwojem.

Naszym celem jest zapewnienie każdemu dostępu do wygodnej, funkcjonalnej i ekologicznej przestrzeni życiowej, niezależnie od tego, czy marzy o kompaktowym domu wakacyjnym, komfortowym domu dla całej rodzin, czy będąc inwestorem rozważa budowę hotelu lub budynku wielorodzinnego.

0{{current_slide_index}} Ecology We focus on the energy efficiency of our buildings, environmentally responsible materials and waste minimisation, because we believe that modular construction is a tangible step towards a better, more sustainable future. 0{{current_slide_index}} Comfort We design living spaces with the highest functional and aesthetic standards in mind, while ensuring the highest quality and durability of our buildings. 0{{current_slide_index}} Innovation We use innovative technologies that enable maximum optimisation of the construction process – from design through to final assembly.

We operate with commitment.

Portfolio

Our buildings are designed for those who expect more from contemporary construction – who value modern design, intelligent technologies and environmental responsibility. We create aesthetic, functional and energy-efficient spaces that ensure comfort and harmony with the surrounding environment.

Private client

We show how low operating costs and modern technology can enhance the comfort of everyday living.

Single-family houses

Single-family houses

Holiday homes

Holiday homes

Business client

We provide investors with certainty throughout the investment process, control over quality, faster delivery and hence lower overall costs.

Hotels

Hotels

Residential buildings

Residential buildings

Other large-scale developments

Other large-scale developments

Public client

We design our buildings with their social role in mind, taking into account all societal requirements and demographic changes.

Residential buildings and social housing

Residential buildings and social housing

Senior living facilities

Senior living facilities

Student residences

Student residences

Innowacje które zmieniają codzienność

Korzyści

Wykorzystujemy technologię, które zapewniają korzyści.
Dzięki nim projektujemy i budujemy, szybciej, precyzyjniej i bardziej ekologicznie.

DO

1 %

Oszczędności wody wodociągowej

Ograniczyliśmy zapotrzebowanie na wodę wodociągową do 12%, co przekłada się na wymierne oszczędności.

DO

1 %

Mniejsze zapotrzebowanie na energię elektryczną

Zadbaliśmy o kluczowe cechy budynku – jego szczelność, parametry cieplne i zapotrzebowanie energetyczne.

DO

1 %
Krótszy
czas realizacji

Wykonując większość prac w fabryce, skróciliśmy czas realizacji procesu budowlanego o 50% w porównaniu do tradycyjnej metody, niezależnie od pory roku i warunków pogodowych.

Innovations that transform everyday life.

Benefits

We use technologies that deliver measurable benefits. Thanks to them, we design and build faster, more precisely and in a more environmentally responsible way.

Up to

1 %

Water savings

We have reduced main water demand to just 12%, delivering tangible and measurable benefits.

Up to

1 %

Reduction in energy consumption

We have optimised the key building parameters – airtightness, thermal performance and overall energy demand.

Up to

1 %

shorter delivery time

We have reduced construction time by 50%, regardless of season or weather conditions.

One company. The entire process.

Comprehensive investment delivery

We deliver every stage of the construction process in a comprehensive manner – from individual design, through factory production and precise on-site assembly, to long-term warranty, providing full support at every step.

0{{current_slide_index}} For each building, we develop a complete architectural and construction design, as well as structural, sanitary and electrical designs. Our 3D modular structures allow for flexible interior configurations tailored to individual Client requirements. The designers at 21Stopni ADD ensure that the selection of materials and systems supports optimal energy use and maximises savings. We design 0{{current_slide_index}} We assemble For each building, we develop a complete architectural and construction design, as well as structural, sanitary and electrical designs. Our 3D modular structures allow for flexible interior configurations tailored to individual Client requirements. The designers at 21Stopni ADD ensure that the selection of materials and systems supports optimal energy use and maximises savings. 0{{current_slide_index}} We manufacture Each module is manufactured under controlled conditions, which eliminates errors, minimises material waste and allows full quality control. As a result, we can provide our Clients with solutions that are not only durable, but also compliant with the highest construction and environmental standards. By carrying out most of the work in the factory, we have reduced the overall construction time by 50% compared to traditional methods, regardless of season or weather conditions. 0{{current_slide_index}} We guarantee We ensure high workmanship quality and the reliability of our buildings. Thanks to carefully selected materials, precise execution techniques and control at every stage of production, Clients can be confident of long-term, comfortable and trouble-free use of the building, which will remain durable and safe for years, while maintaining low operating costs and high functional efficiency.

Contact

Write or call us

Office:
ul. Ostroroga 18C, 01-163 Warszawa, Poland

Production facility:
Natolin 44, 92-701 Natolin, Poland

© 2025 – 21 stopni ADD