Cities are becoming more populated, and the spaces are becoming limited, where the chances of expanding the residential or commercial spaces are becoming very difficult. As every inch of the space matters, it is necessary to use the spaces effectively. This is where the lower ground floor becomes a game changer. It allows maximising the existing place, with a floor underneath the main floor, partially underground.
Whether planning for residential spaces, shops, offices, or cafes, this has been an effective solution for space constraints. It has become widely popular, and there are a lot of lower ground floors nowadays. This blog will explore the lower ground floor in detail.
What is a Lower Ground Floor?
A Lower Ground Floor is a floor partially below the ground level. Although seems similar to the basement floor, it differentiates itself by not fully submerging underground. This floor lies below the main ground floor, but above the basement, allowing partial connection of the outdoor environments. It consists of windows and openings to allow natural light and ventilation.
Purpose and Function of Lower Ground Floor
- The main purpose of building a lower ground floor is to increase the building space without expanding the building layout, which is ideal for congested areas.
- It is comparatively less expensive to construct floors above the ground level, requiring fewer structural reinforcements.
- It can be used as storage rooms, mechanical systems, utility spaces, or even parking spaces, keeping the essential services and functions hidden from view.
- Used for commercial spaces such as shops, cafes, restaurants, or even office spaces.
- It can act as a buffer zone to protect more valuable and habitable spaces above to withstand floods or be used for flood-resistant storage.
- Keeping the floor partially below the street level offers privacy and free from external disturbances.
- The floor acts as a thermal insulator by maintaining stable indoor temperatures for a long time.
Design Considerations
- Consider incorporating windows, light, or skylights to receive natural light into the space.
- Glass or other transparent materials can be used to allow more daylight into the structure.
- Improper ventilation can lead to poor air quality, odours, and breathing problems, thus adequate space should be allocated for fresh air.
- Ensure the stability of the foundation and walls to prevent dampness, flooding, and the development of moulds.
- The ceiling height should be optimal to avoid a cramped feeling, as low ceilings can make spaces feel uncomfortable.
- Ensure that all the basic amenities are provided at the lower ground surface, to balance the functionality and looks.
Benefits of a Lower Ground Floor
- Help maximise the usable space without expanding the building’s footprint.
- The construction and rental costs are comparatively lower than the upper floors.
- It offers acoustic properties, which reduce the external noise and and create quiter environments.
- It helps maintain a stable room temperature, making the structure more energy efficient.
- It can act as a buffer in flood-prone areas, which helps keep the upper floors safe and secure.
- The lower ground floors increase building value, which will be helpful during reselling.
- The minimal exposure to the external environment offers more privacy, especially in busy urban areas.
Challenges of Lower Ground Floor
- The lower ground floor is generally dark as it is built underground with limited exposure to natural light.
- Inadequate ventilation can affect the air quality and moisture buildup within the structure, which also can lead to breathing discomfort and short breathness.
- In case of flooding and dampness, the chances of water ingress and mould formation are high.
- It cannot be practised in places with stricter regulations and areas with poor soil stabilization.
Applications of Lower Ground Floor
- Used for commercial functions like retail stores, cafes, restaurants and offices at a comparatively low rental cost.
- It can be used as additional living spaces in residential apartments, especially in crowded cities.
- It can be used as guest rooms or additional living areas, for large-scale buildings..
- In commercial areas and multi-story buildings, the lower ground floors are used as parking spaces.
- It can be used as a storage area to store mechanical equipment such as HVAC units, electrical panels, and other utilities.
- Used as storage units and archives to store files, equipment, and other utilities.
- Can be a great fit for gyms, yoga studios, or spas, where peacefulness and private environments are crucial.
Conclusion
In summary, the lower ground floor is more than just an extra space in a building. It is a smart, practical and effective way to make space-constrained cities more liveable and functional. The extra space it offers helps stay connected with the outside world partially, allowing natural light and air. As cities grow, this smart way of utilizing space is becoming essential for work or life. It is a perfect example of how creativity and practicality work together, and meet the needs of an evergrowing population and busy urban life.