Published in 2016, ‘Indica: A Deep Natural History of the Indian Subcontinent’ by Pranay Lal offers a journey through the natural history of the Indian subcontinent. This book stands out for its unique approach to explaining evolution and natural history in a manner that is both accessible and captivating to readers of all backgrounds. The book spans a wide range of topics, from micro to macro. Covering everything from ancient fossils to fish, diverse climates, and the animals that inhabit the Western ghats to the Deserts in the Indian subcontinent. 

The book uses the Earth Woman analogy. This imaginative concept reimagines the 4.6 billion-year-old Earth as a 46-year-old woman by astrophysicist Nigel Calder. Allowing readers to visualize the planet's evolution over a human lifespan, making the complex timeline of Earth's history more approachable. The highlights of the book include facts like the ferocious Rajasaurus, an Indian dinosaur possibly more formidable than the T. rex, and 70-million-year-old crocodile eggs discovered in Mumbai and Bengaluru having its unique climate due to a tectonic event that took place 88 million years ago.

Indica: A Deep Natural History of the Indian Subcontinent is a fascinating exploration of Earth's history, told through the lens of a region rich in natural heritage. If you are curious enough about the world around you, Pranay Lal's work is sure to enrich your understanding and appreciation of our planet. Living in Goa, this book makes me reflect on the climate and ecosystems around me. The awareness about natural heritage is essential for sustainability, making the book useful for understanding the environment around us. Join our channel Climate Woes for more climate-related insights.

The upcoming project of sister villas, The Terracotta House and the Indigo House are taking shape on-site. Set in the Pomburpa Village in Goa, the houses are designed to connect with the land with an ecological design, enjoyed barefoot with the calm interactions of nature. To experience the outcome's look and feel, here’s our material palette.

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The selection and finalization of materials is an important and lengthy design process. Colors and textures define the space. The feel and the vibe we experience are a product of it. Terracotta house is earthy and serene with warm tones, harmonizing the interiors and exterior. Indigo House is calm with quiet views of water, and tones of blue merging with the view.

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In celebration of World Earth Day 2024, we wanted to share our journey of building a small house in Goa using rammed earth construction. We've divided our experience into three parts:

PART 1: the project's inception,

PART 2: the challenges we encountered, and finally,

PART 3: the successful execution of our first rammed earth wall on-site.

Our story begins with the start of the project and a hands-on workshop on Rammed Earth led by Gia Mantra Village. Sanjeev Wahi the COO of Grounded attended this workshop.

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Following this, we delved into research and development specific to our site living in Goa, conducting tests, and facing various challenges along the way.

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Through our dedication and with assistance from Thumb Impressions, we overcame these obstacles and successfully completed the first wall of the house.

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From researching and trying out different mixes to solving real-life challenges with the walls, we've come a long way. Building rammed earth walls depends a lot on the specific site and many factors need to be taken into account. We've successfully built these walls at our site and want to share our experience to help others interested in rammed earth construction find all the information they need in one place. You can find more about our journey on our Instagram. If you have any questions, feel free to send us a direct message.

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Images sourced from Anupama Kundoo

Wall House in Auroville is an experimental house designed by sustainability champion Anupama Kundoo. The architecture employs a play in proportions to create comfortable yet dramatic spatial envelopes. The house is built entirely with locally sourced materials in new, innovative ways to create soothing, earthy spaces that respond to the warm, humid climate.

Wall House is predominantly constructed with the vernacular ‘Achukkal’ brick, once ubiquitous to the building landscape in Tamil Nadu. Known for their unique flat, thin profiles and their distinctive red colour, Achukkal bricks are typically made out of left-over silt that is collected from farmlands around. They are then shaped by hand and fired in clay ovens for strength and stability. The bricks are deemed to be extremely sustainable, given their long life, low cost of production, and the sparing amounts of energy use for manufacturing.

The earthy palette and warm finishes move beyond the brick walls and are found throughout the house. The august clay pot vault above the double-height living space and the innovative filler slab roof above the dining area are particularly worthy of mention.

Each facade of Wall House sports unique fenestrations that bring in fresh air and ample daylight. On one side, a series of louvered windows built out of local mango wood and completed with unpolished granite stone come into sight. On the other side, a series of pivoting ferrocement screens open the house to the verdant landscape around when open, and bring beautiful light and shadow patterns indoors when closed.

We have some much-awaited news!

Grounded will soon be launching 2 new luxury villas for sale in North Goa. Set within beautiful Aldona, the house is surrounded by peaceful green vistas and the rustic charm of the Goan countryside. With expansive living spaces, intimate pockets that look out to the pool, and nearly 3500 sqft of open space, the house seeks to offer seamless indoor-outdoor living. Like all our other residential projects, the villas will be sustainable, architecturally relevant, and closely connected to nature.

To know more about the villas,

It is such a joy to see our project House with Three Pavilions find beautiful space in print and on the cover of Livingetc Magazine’s June 2022 issue. Aptly titled - ‘A Home with A Verandah’, the article draws attention to our countryside Goan house’s tangible connection to nature. It throws light on our tropical modern design approach and celebrates our efforts to create seamless indoor-outdoor spaces that allow our clients to take everyday life outdoors.

Read the published story here.

If you are considering buying a house in Goa, read our blogpost: What to Look For While Buying A House in Goa

To know more about our design process, take a look at: Designing A House in Goa

Building with rammed earth is simple, pocket friendly, and sustainable. Contrary to popular belief, rammed earth construction is feasible in a wide range of climatic zones, including areas with a significant monsoon. A built rammed earth structure is a sight for sore eyes, it is a dense but breathable material which makes it great for thermal insulation. With the right processes and tools, a rammed earth structure can easily be implemented by anyone. Here are some basics about the natural material to help you get started.

Knowledge Partners: Gia Mantra Global Village

For a detailed analysis of Rammed Earth as a building material, watch my conversation with natural building expert Donald Sequeira here.

We also answered the FAQs on Rammed Earth recently. Find the Q&A session here.

In part two of 'Building with Rammed Earth', I speak to Donald Sequeira. Donald is an architect, natural builder, and the Director of Gia Mantra Global Village in Tiruvannamalai, Tamil Nadu, India. In this conversation, we take a deep dive into questions from students, practitioners and sustainability enthusiasts to clarify concerns regarding rammed earth as a building material. Through this Q&A session we touch upon various aspects including:

• The Building Process

• Strength of Material

• Potential of Construction

• Climate Feasibility, and

• Maintenance

Here are some interesting questions that we received over the course of the IG Live session:

1. Can a rammed earth structure be built in areas with heavy rain?

   A rammed earth structure can be built in any climatic zone including areas with heavy rainfall. The precaution to be taken is to ensure large overhangs are given to protect the wall from the rain. Additional surface treatments like waxing or plastering protect exterior walls for a longer period.

2. What is the ideal soil type for rammed earth?

   Yes. Rammed earth walls can be built out of most local soils but the clay content should not exceed 30%. If the clay content is higher, the soil can be mixed with other soil types or washed with water to dilute the clay concentration.

3. How are building services addressed?

   The electrical conduits and plumbing must be inserted while ramming. Prior planning is required. Otherwise, services can be added later but those surfaces may require plaster.

4. Are any surface treatments possible?

   Yes, rammed earth walls can be plastered, painted, and tiled over like any other wall. Clear treatments such as wall waxing are also possible.

5. Can river sand be added to the soil mix to reduce the clay content?

   Yes. However, river sand is not ideal because it is not a sustainable source. M-Sand is a good alternative to river sand and can be used as one of the mixture components.

6. Can a 4" rammed earth wall partition wall be created inside a RCC framed structure?

   A 4" rammed earth wall may not be possible since very little space is available for ramming. Furthermore, if the wall is planned beneath a pre-existing beam or a slab, it becomes harder to ram the top portions and close the gap. CSEB is a good alternative for built framed structures.

In this IG Live, I speak to Donald Sequeira. Donald is an architect, natural builder, and the Director of Gia Mantra Global Village in Tiruvannamalai, Tamil Nadu, India. In this first part of our conversation on 'Building with Rammed Earth', we understand the fundamentals. We understand the potential and constraints of rammed earth as a material and learn about preparing the material for construction. We speak about the material's strength and stability and understand construction concerns such as building height and services. We also discuss the durability and maintenance of rammed earth over its lifetime.

Here are some common myths about rammed earth debunked:

• A rammed earth structure can be built in all climatic regions.

  Rammed earth can be used for construction anywhere. It is a breathable but dense material that offers great heat exchange in tropical areas and thermal insulation in extremely hot or cold regions.

• A rammed earth building is durable and has a lifespan greater than concrete.

  Rammed earth structures also possess strength that is at least equal to the strength of concrete. They are extremely sustainable in the long run and require minimum maintenance.

• Rammed earth walls do not have to be very thick and there is no limit to room sizes.

  For a ground floor structure, only a 9" rammed earth wall is required which is equal to the thickness of a brick wall. As long as this criteria is met, it is possible to create spacious rooms of various sizes with rammed earth.

• There is no threat of insects or pests entering the house through the rammed earth walls.

  Once compressed, the rammed earth wall becomes extremely hard and dense. While the material is breathable, it is not not porous. The density does not allow for passages to be made by pests.

The feeling of being inside a rammed earth structure is indescribable. The structure changes with the weather to protect you. It has a quiet, special, womb-like quality - one instantly feels cocooned.