Energy efficient buildings
Modern construction and high quality low-energy homes
Consultancy, planning, design and construction of energy efficient buildings. It is of particular importance to emphasize that low-energy buildings are constructed with a robust solid reinforced concrete structure, they are not prefabricated or temporary structures. At the end, the customer receives a building with guaranteed indoor climate quality and low energy consumption without worrying about the details. Anyone decided to work with us will get a clear idea about the cost of the desired building and will be able to benefit from solutions best suited to his / her preferences, ideas and budget.
The differences between energy-efficient and ordinary buildings are sometimes inconspicuous to non-specialists and often building owners learn about them only when it turns out that the expenses for heating/cooling are too high and the quality of the indoor climate is unsatisfactory. Expenses for heating and cooling of a low-energy home is 5 to 10 times lower than the same of a standard building built according to the Bulgarian legislation. The difference is drastic and ends the high bills. Such an investment is strategic and increases its value over time. In less than 6 years you can payback the extra costs and if you take into account the possibility that the price of the energy carriers will increase, it will hardly decrease, the investments will return even faster.
Investment consulting
Expert opinion on high energy efficiency
In order to achieve optimal results, it is necessary to consider the energy efficiency measures before the building design is complete and construction begins. Both the specific wishes of the client and the technical and economic opportunities for their realization must be taken into account. When details are known, thanks to specialized engineering software for energy design, we are able to plan the implementation of optimal energy efficiency solutions. We can give our professional oppinion at every stage of the design process, but it is important to know that the sooner we do it, the better results could be.
Learn moreOptimal comfort
A number of solutions for a better quality of life at home
When building is not designed to provide good indoor quality, one would use the nesessary measures to achive it, which often results to much more energy consumption than if the good indoor quality was among the priorities during the design stage of the building . For having good indoor air quality, the following parameters should be within certain limits: operative temperature, CO2, humidity, day light, air age.
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With attention to health and comfortEffective use of energy
Active systems, passive measures and technologies for better comfort
High energy efficiency and good indoor climate are related to effective use of existing environmental conditions and construction technologies which provide maximum comfort at low energy costs. Such a rational use of energy can be achieved by analyzing and combining together systems and architecture of a building. For this purpose, we use computational software for energy simulations.
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Rationality and high energy efficiencyRenewable energy sources
Using free energy from nature
Predicting the benefits of renewable energy sources leads to a significant reduction in operating costs and is a mean of protecting the environment and preserving the exhaustible natural resources. When the building has a smaller footprint on nature, it is often called "sustainable" or "green". The main renewable sources are solar energy and geothermal energy. They can be used thanks to modern solar installations and heat pump systems.
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A smaller environmental footprint
Low-energy homes Quality and energy efficiency
Expenses for heating and cooling of a low-energy home are 5 to 10 times lower compared to standard building built according to the Bulgarian building legislation. The difference is drastic and ends the high bills. Such an investment is strategic and increases its value over time. Within less than 6 years, you can payback the extra cost.
After 2020, any building that is not low-energy building will prove to be a bad investment. The National Plan for nearly zero-energy buildings enters into force in 2018. According to Energy Efficiency Act these buildings should fulfill several conditions: their energy consumption corresponds to Class A.; not less than 55% of the energy consumed is provided from renewable sources located on site. The aim of Directive 2010/31/EU on the energy performance of buildings is to reduce total energy consumption in the EU by 20% by 2020.
45 kWh
0.3 €/m²
Passive houses
A higher standard in low-energy construction works
The passive house has extremely high energy efficiency and provides comfortable indoor conditions throughout the year. The concept of its creation is based on low heat losses in a building without traditional heating systems and without active cooling.
Low heat costs make it cost effective if one considers the lifetime cost of the building. It must have a high level of thermal insulation, a minimum of thermal bridges and low infiltration, for which it passively uses the solar heat and internal storage heat inflows, as well as the recycling of the exhaust air heat. Renewable energy sources are prioritized and compared to current standards, energy consumption from non-renewable energy sources is extremely low.
The consumption in numbers
Saved heat energy is 75-90%
Annually, for primary energy for heating, cooling and ventilation, electrical appliances and lighting, the use of 120 KWH/m2, regardless of the energy source, must not be exceeded.
A building built by the standards for a passive house saves heating energy by 75 to 90%, compared to non-passive buildings.
Usually, the return on investment period for the cost of the passive systems is less than 10 years.
Life in a passive house
No special habitation requirements
Passive houses can be designed and built for anyone. The construction is based on simple materials with good characteristics, structures and building installations that meet the requirements for the passive standard. "CITY-EURO" seeks to attract investors who are looking for contractors, qualified for such projects. The company is developing an affinity for the construction of passive houses, as this is the professional future of construction building as a whole. Our country already has good design teams, a developed market for materials and equipment and most of all - informed, environmentally responsible and innovative users of passive houses, who want to invest in and keep up with the global "green" trends.
Main benefits of passive housees Comfort, costs and environmental impact
High thermal comfort and excellent air quality
High thermal comfort includes conditions such as constant temperature in all rooms and equal temperature in every part of the room. Excellent air quality is independent of external conditions such as climate, air pollution, noise.
Green and sustainable construction
Both as natural resources used in the input materials and in the long term - as environmental footprint, its quality impact is at a whole different level from the traditional one.
Consistently low energy consumption
Total consumption is calculated based on the entire life cycle of the building.
Reliable and long-term technical solutions
...that do not require complex and expensive maintenance.
Indoor climate quality guarantee
Proven indoor environment quality
The quality of the indoor climate is guaranteed by using excellent insulation and heating, cooling and ventilation systems. Important factors are providing a constant temperature, the elimination of reheating or re-cooling of rooms, as well as the extraction of odors. According to Bulgarian regulations, there are no requirements for natural light in premises, СО2 levels, humidity and air changes. Buildings are being designed and built without the indoor air quality to be taken into account at all. We often do not feel that we are exposed to adverse impacts due to a bad indoor climate. A sign of such exposion is the appearance of molds in rooms and bathrooms which have a negative impact on health. Some of the typical symptoms can lead to chronic respiratory problems and allergies! You can read more about indoor climate quality on Optimal comfort.
Health and optimal comfortPrice comparison
Heating costs at low and standard energy consumption
To get a better idea of how much cheaper a home heating can be, when designed and built in a way that prioritises low energy consumption and indoor climate quality, was made a comparison of three separate strategies covering thermal isolation and the way heating. The graph on the right shows the monthly heating costs of a two-storey house with an area of 350 m² located in Sofia. Three options are compared: 1st - low energy house with heating and cooling supplied by heat pump, 2nd option - standard insulated house with pellet heating (cooling is not provided and requires additional investment) and option 3 - a standard insulated house with standard electric heating (eg electric boiler with radiators, heaters, etc., which also do not provide cooling during summer). It is also important to add that among the three models, the well-insulated building provides the highest indoor climate quality and even heat distribution in all rooms throughout their area and height.
Investment payback period
What is the return on investment?
There are standards for nearly-zero energy buildings regarding doors, windows, thermal insulation, lighting and heaing/cooling and ventilation systems. Costs are approximately 30% higher than standard. The return period of investments is short - up to 6 years, and their value increases over time.
Strategic investment
19 years of experience
QHome "The key to a better life"
Project for the complete construction of an innovative residential building in Vitosha district, "Prof. Georgi Zlatarski" street, Client: AKMI Ltd.
QHome "The key to a better life"
QHome is an energy-efficient residential project that offers a concept of living in harmony with nature. The project is distinguished by the use of a geothermal cooling and heating system, made possible by heat exchange with the ground. The technology, also called a ground source heat pump, provides savings on monthly utility bills of up to 60%.
With a built-up area of 4945m², including 55 homes and 55 parking spaces, and with its location in one of the most preferred areas of Sofia, QHome has the ambition to offer the standard we need to lead a better life.
THE MALL - "Tsarigradsko Shose" blvd.
Machine laid cement sanding screed and specialized construction works on the territory of Bulgaria's largest shopping center - THE MALL, "Tsarigradsko Shose" blvd.
THE MALL - "Tsarigradsko Shose" blvd.
Machine laid cement sanding screed and specialized construction works on the territory of Bulgaria's largest shopping center - THE MALL - "Tsarigradsko Shose" blvd.
"CITY-EURO" LTD is one of the main contractors of a machine layed cement-sand screed from tender for THE MALL - "Tsarigradsko Shose" blvd", namely: CARREFOUR, NEW YORKER, SPIDER, Marc O`Polo, ESPRIT, ZARA, PRETTY SHOP, MODESTAMENTE, HUMANIC, INTERSPORT, ADIDAS, PUMA, DOUGLAS, SEPHORA, BEAUTY ZONE, La Coste ect. In most of the commercial areas, as required by the investors, a cement-sand screed, significantly exceeding the technical characteristics of BDS National Standart for this type of construction product, was layed.
Change of purpose and reconstruction of a building, Slivnitsa
Investor: Municipality of Slivnitsa
Change of purpose and reconstruction of a maternity hospital to a Center for the elderly, regulated plot ІV, zone 8, Slivnitsa, Municipality of Slivnitsa
Contract 2007 CB16IPO006-2009-1-150 Establishment and development of social infrastructure (Budget line 6 Investments) by IPA Cross border Bulgaria – Serbia 2007-2013, Investor: Municipality of Slivnitsa
Two passive houses on a common plot, Gorna Banya quarter
Complete construction of two passive houses - an example of the higher standard in low-energy construction.
Two passive houses on a common plot, Gorna Banya quarter
Passive buildings have a high level of thermal insulation, a minimum of thermal bridges and low infiltration, to achieve which they use the heat inflows from solar energy and internal accumulation, as well as the recycling of the thermal energy of the air exhausted from the ventilation.
Residential and office buildings at "Vihren" str., Buxton
Residential and office buildings in regulated plot VII - 289, 256A, Pavlovo - Buxton, Investor: BUILD SYSTEMS BULGARIA Ltd.
Residential and office buildings at "Vihren" str., Buxton
Residential and office buildings in regulated plot VII - 289, 256A, Pavlovo - Buxton, Investor: BUILD SYSTEMS BULGARIA
"CITY-EURO" is a contractor of Roofing, waterproofing and tinsmith works, Cement screeds and pavements, Plumbing works and Thermal insulation and plaster on facades.
Q - center
Office building with trade area and underground garages - "Tsarigradsko Shose" blvd., 4-th kilometer, Investor: BUILD SYSTEMS BULGARIA Ltd
Q - center
Office building with trade area and underground garages - "Tsarigradsko Shose" blvd., 4-th kilometer, Investor: BUILD SYSTEMS BULGARIA Ltd.
Q-center project was a professional challenge, especially from a constructive point of view, because the mix of one main body and three low bodies is a combination of highly irregular in plan and high-rise buildings with very complex shape facades. This necessitated the building separation with seismic joints in four separate blocks and using a mixed structure of beams and columns composed of frames and reinforced concrete walls and cores.
The precise execution, the rhythmical and tight organization plus the saturation with sufficient equipment and qualified personnel led to the logical result - a timely and quality completion, regardless of the additional difficulty that was created by the location of the site: the roundabout on 4-th kilometer, "Tsarigradsko Shose" blvd. - the junction with one of the trafic in the capital.
First sod of QHome
On September 17, with an official opening, City Euro began the construction of QHome "The Key to a Better Life", the first residential building in Bulgaria certified according to the EDGE sustainable/green construction standard.
First sod of QHome
On September 17, with an official opening, City Euro began the construction of QHome "The Key to a Better Life", the first residential building in Bulgaria certified according to the EDGE sustainable/green construction standard.
After the traditional consecration, the construction site of the energy-efficient building, which will offer a concept of living in harmony with nature, was opened together with the contractors AKMI Ltd.
Futuristic aparthotel
Complete construction of a building in the center of Old Sofia, Bratya Miladinovi Street. Client: "Urban Stay" Ltd.
Futuristic aparthotel
Innovation and cutting-edge technology in every element of the building - from geothermal wells providing energy-efficient heating, cooling and air conditioning to smart-home systems for automating security, notification, access control and more. The interior itself is a whole new page in the interior design of spaces.
The aparthotel has an exceptional quality of workmanship, high class materials, equipment and the idea "less means more" in its most sophisticated implementation! CITY-EURO exceeded the expectations of the demanding foreign investor, so that future visitors can enjoy the undeniable advantages of a modern, extraordinary in design and function, building.
Residential area "BRIGHT LIGHT"
Complex of residential buildings "BRIGHT LIGHT" I and "BRIGNT LIGHT" II . Investor: BUILD SYSTEMS BULGARIA Ltd.
Residential area "BRIGHT LIGHT"
Complex of residential buildings "BRIGHT LIGHT" I and "BRIGNT LIGHT" II . Investor: BUILD SYSTEMS BULGARIA Ltd.
"CITY-EURO" is the main contractor of Roofing, waterproofing and tinsmith works, Thermal insulation and mineral plaster on facades, Cement mortars and pavements, Water and sewage works, Hydro and thermal insulation on balconies and terraces, floor screeds and concrete flooring.
- 40+ Finished projects
