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.

View this post on Instagram

A post shared by Anjali Mangalgiri (@anjali.mangalgiri)

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

View this post on Instagram

A post shared by Anjali Mangalgiri (@anjali.mangalgiri)

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

View this post on Instagram

A post shared by Anjali Mangalgiri (@anjali.mangalgiri)

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.

---

Grounded in Goa is a series that documents the everyday beauties and joys of living in Goa. For anyone looking to move to Goa, it offers a glimpse into Goa's undeniable connection with nature, a life lived in harmony with the fertile land, changing skies, and the giving waters.

Also read - What To Look For While Buying A House in Goa and Designing a House in Goa

In this IG Live, we speak to Dr. Ajit Gokhale, the founder of Natural Solutions, India to discuss ‘Building Reed-bed system for Wastewater Management’.
Over our conversation, we get into details about the components of a Reed bed system, how the water purification is carried out, and the right methods of implementation. We also debunk common misconceptions about reed beds such as odor and maintenance requirements. Finally, we speak about the different types of flowering and fruiting plants that can be used for reed bed systems in Goa and along the Western Ghats.

Natural Solutions aims to spread environmental literacy and offers sustainable solutions for Urban as well as Rural Problems of water scarcity, Solid Waste Management, and wastewater treatment. Here are some key takeaways from our conversation.

Debunked myths about reed-bed systems

• A reed bed system does not smell if designed correctly. The simple precaution of introducing the inlet pipe at the bottom of the reed bed and not the top of the ensures that no foul smell is emanated.

• A reed bed does not have to be designed in a segregated area. It can very much designed as part of the landscape to be a walkable, usable space that can be accessed regularly.

• A reed bed can be used to effectively purify not just greywater but also black water and industrial wastewater when implemented correctly. It does not require significant additional maintenance.

Maintaining a reed-bed system

• A reed bed system typically consists of two parts - a sedimentation system (a septic tank/ an anaerobic digester/ Jalrakshak) and a filtration system (the reed bed itself). The entire system requires very little external care or maintenance.

• As with any common drainage or waste treatment system, the septic tank/ anaerobic digester/ Jalrakshak has to be cleaned occasionally.

• The reed bed itself does not require any maintenance. The plants can be trimmed for aesthetic value but it is not necessary. Trimming does not hamper the reed bed system as long as it is done as per a pruning schedule. Care has to be taken that the base of the plants are intact.

Benefits of a reed-bed system

• A reed bed system is a one-time investment with lifelong benefits. It is extremely low maintenance in the long run.

• Depending on the microclimate, the reed bed can purify every 1L of impure water to create 0.7 to 0.9L of filtered water that can be reused.

• The filtered water can be reused for irrigation & gardening, washing cars, and for flushing.

• The reed bed can be integrated as an accessible part of the landscape of the house with flowering and fruiting plants and trees that become home to local biodiversity.

Reed beds are sustainable, scalable, cost-effective ecologically engineered systems that can effectively purify wastewater. They are easy to maintain and can be designed into the landscape irrespective of the project size or typology.

In this session, we speak to Shubhendu Sharma, Founder of Afforestt. Afforestt does amazing work rewilding barren land in rural as well as urban areas, in different climatic zones, using different species through a process called the Miyawaki Method. Over the conversation, we discuss the fundamentals of the Miyawaki technique, the how tos of growing a forest, the benefits of picking native species, the ways and means of making forests and landscapes in the cities, as well as the challenges of growing and maintaining a dense forest. We also delve into the subject of mono-planting and understand how it impacts local biodiversity.

Here are some key takeaways from the session:

• Above ground, we perceive the forest as multiple trees, plants, and shrubs. But below ground, the forest grows as a single organism. ‘The Hidden Life of Trees’ by Peter Wohlleben is a great read to understand how trees grow and communicate

• ‘Jungle Trees of Central India’ by Pradip Krishen is an excellent resource to learn about Indian native trees.

• One can visit the following native forests in India to find clues about and study the local indigenous species:

  • Sanjay Gandhi National Park in Mumbai

  • Kabini Forest in Bangalore

  • Srisailam Reserve in Hyderabad

  • Annamalai Forest in Tamil Nadu

  • Ridge Forest of the Aravalli Range in Delhi

  • Alwar Forest in Gurgaon and Haryana

  • Kanha and Tadoba National Parks in Central India

  • Jhilli Milli Forest in Kolkata

  • Jhalana Forest in Jaipur

  • Bathinda Forest in Punjab

  • Nepli Forest in Chandigarh

• Afforestt also has an open source DIY toolkit on How To Build Forests. You can find the methodology here.

Read more about growing urban forests using the Miyawaki method in our introductory blogpost.

I recently conducted an IG Live on taking A Site Positive Approach. As a follow up to that, I conducted another video session to get into details and answer pertinent questions about Rainwater Harvesting. I discuss the elements that make up a RWH system, compare the differences between rural and urban water management systems, and introduce some of the various options available for harvesting water. I also speak about the Goan monsoon patterns and the site specific methods that are useful in tropical areas. As an example, I explain the simple but effective well system created at Navovado, our completed vacation house in Goa. I also explore natural water systems such as ponds and bioswales which we have physically implemented at our project The House with Three Pavilions in Goa.

Geoffrey Bawa is an unforgettable and continuous inspiration to most architects. There is an intangible relationship with nature that is so beautifully established. To see our inspiration translate into our work - in design, in spatial character, in connection and reverence towards nature - finding new meaning in every site we build on, feels wonderful and magical.

As we look back on our projects, it feels great to see many of our spaces carrying the sensibilities and sensitivites that Bawa inspired throughout his practice. The following set of images puts our project photos alongside some expertly crafted spaces byt the tropical wizard. It is our ode to the master architect, a reflection of the small but diverse ways in which he has touched our design thinking and building values.

The Balcao Connection

The interesting architectural connection between Goa and Sri Lanka is visibly articulated in elements such as inbuilt seats. The first picture is a site picture of a porch at our project, The House With Three Pavilions. The Goan Balcaos face each other, framing the entrance to the home pavilion. The second photograph is from Bawa's Lunuganga garden, with the in built seats looking out into the surrounding greenscape.

Windows for trees.

There is always time to frame a view. Vistas of green, however small bring a sense of freshness and colour into any space. The first picture is from our project Navovado, as the building volume is punctuated by foliage and fenestration. The second photograph is from Bawa's Garden, the bark of a tree framed through the small verandah window.

Seats built in to live with nature⠀

The first picture is of an insitu seat built next to the champa tree, watching the coconut plantations beyond on site at The House With Three Pavilions. The second photograph is from Bawa's estate, with an in built seat, finished with a wooden railing back, set in the enclosed gazebo to immerse oneself into the sights and sounds of nature around.⠀

A Hidden Pool⠀

The first picture is of a terrace pool overlooking the trees and the hills at our project Nivim. The second photograph is from Geoffrey Bawa's House for Dr Bartholomeusz, with the pool quietly tucked into the indoor-outdoor courtyard.

Finding Bawa ~ The Stairway Composition⠀
⠀
The first two pictures are from our project Navovado, looking at the stairway as it adds sculptural value and the play of different levels to one end of the living room. The second photograph is from Bawa's Bentota house, looking at his minimal, yet artistic stairway composition.⠀

Read Part I of Finding Bawa here.

Geoffrey Bawa is an unforgettable and continuous inspiration to most architects. There is an intangible relationship with nature that is so beautifully established. To see our inspiration translate into our work - in design, in spatial character, in connection and reverence towards nature - finding new meaning in every site we build on, feels wonderful and magical.

As we look back on our projects, it feels great to see many of our spaces carrying the sensibilities and sensitivites that Bawa inspired throughout his practice. The following set of images puts our project photos alongside some expertly crafted spaces by the tropical wizard. It is our ode to the master architect, a reflection of the small but diverse ways in which he has touched our design thinking and building values.

Building with nature

Watching these two pictures side by side leaves us with a sense of achievement and happiness. The first picture is from our project, The House with Three Pavilions in Goa. The second picture is from Ena De Silva's house, built by the master Geoffrey Bawa.

Verandahs celebrating the trees of the land
⠀
The first picture is from our project Navovado, looking at the old mango tree preserved during construction on site for this vacation house in Goa. The second photograph is from Bawa's Lunuganga estate, framing the magnificent tree by the lake.⠀⠀

Making greenery part of the building elevation
⠀
The first picture is from our project Navovado, as boundaries are blurred between the house and its landscape. The second photograph is from Bawa's Lunuganga country estate, picturing the house among the greenery perceived from the lawn.

A Place in The Shade⠀
⠀
The first picture is from our project The House With Three Pavilions, as the semi open corridor faces the internal courtyard on one side, touching it with an in situ seat and transitioning into different rooms on the other sides, each celebrating different views. The second photograph is from Bawa's estate, as the corridor behaves like a verandah even as it connects the indoor spaces from side to side. ⠀

A Welcoming Wilderness⠀
⠀
The first picture frames the entrance to a pavilion at The House With Three Pavilions, brought alive with the growth of native plant species. The second photograph is from Bawa's Lunuganga garden, with the entrance pathway bordered by the lush wildscape on one side. ⠀

Read Part II of Finding Bawa here.

What is a green building?

A green building is one where you’re trying to reduce the impact of the construction on the environment. It is about making the right choices at every stage and  looking at every possible way, to optimise resources during and post construction and to minimise or offset one’s footprint right from the design stage to the occupancy stage. Right from positioning the building on the site, being mindful of the solar and wind orientation, looking at the existing resources on site to incorporate them into the building, preserving the underground water table - the environment is part of the design criteria from the very first step of the design process.

Here are some tips for an architect to design a green building

• The building should be designed for its local climate and weather

• The design should be site specific

• The natural features on the site must be preserved whether it is the trees, the underground water table, the contours and terrain, etc

• Plan openings for maximised daylight and cross ventilation

• Reduce the urban heat island effect 

• For landscaping, use lesser amounts of non permeable surfaces like concrete and more permeable surfaces like grass that allow water to percolate and recharge the underground water table

• Reduce concrete exposure because concrete tends to absorb a lot of heat

• Enhance thermal comfort by thinking about all parts of the envelope - the walls, the windows, the shading devices, the roof, etc - to reduce energy expenditure

• Conserve water and collect or harvest rainwater

• Use aerators for taps and dual flushes for WC

• Use solar water heaters

• Use solar panels if the site allows for it

• Compost using house and site waste and feed it back to the garden

• Reduce, Reuse, Recycle

Every little detail helps.

Links to our previous Blog Posts on Green Building:

• GREEN CERTIFICATION

• WHY BUILD GREEN

• GREAT ONLINE RESOURCES FOR GREEN BUILDING

• GREEN FEATURES AT NIVIM

Goa is beautiful and rich in its diversity. It has something to offer to every visitor. In this blogpost, we have created a quick map with some of Goa’s best - your very own printable checklist of what to see, where to go and what to do over your next Goa trip. The map has a mix of old houses in Goa, its most popular beaches, the best natural and wildlife sanctuaries in Goa among other popular destinations. For a detailed breakdown of the differences and similarities between North Goa and South Goa, click on the map to read our analysis comparing the two districts.

---

South Goa is paradise on earth with its lush paddy fields, old Portuguese mansions, numerous forests and sanctuaries, pristine beaches and rivers, quaint churches and magnificent forts. The streets of South Goa speak to a different era with a distinctive old world charm. In the first part of this two part blog post, we have selected a few of the quintessential South Goan charms from a long list of abundant natural and man-made wonders.

Cabo de Rama

Cabo de Rama is a relic left from times bygone. Once a magnificent fort that housed an entire community, it remains one of the oldest and largest forts of South Goa and offers a fantastic view of the Canacona Beach below.

Chandor & Loutolim

The villages of Chandor and Loutolim give you the giddy feeling of opening an old book. The Portuguese style sweeps elegantly across the villagescape, evident in the beautiful old world architecture and the laid back lifestyle. Both villages are famous for their centuries old colonial mansions that stand tall even today. We will be looking at these beautiful palatial homes in Part II of our blog post.

Netravali Lake

The Netravali Bubbling Lake in the Sanguem district is one of the lesser known beauties of South Goa. This one of a kind natural lake is known for its mysterious and continuous bubbling water surface throughout the year.

Galgibaga

The Galgibaga Beach is home to silver sands, endless rows of coconut trees and the charming Olive Ridley turtles which come onto the shores every year between November and February to nest and hatch. A ferry ride crossing the picturesque Galgibaga river is the best way to get to the beach.

Naval Aviation Museum

Established in 1947, Naval Aviation Museum offers a glimpse into military history. The museum is designed to look like the interior of a naval aircraft carrier with galleries displaying naval equipment and prominent battles, including a simulation room. It also has an outdoor aircraft park with an exhibition of old aircrafts and engines.The museum is set on a plateau and overlooks the scenic Bogmalo beach.

Mollem National Park

The Mollem National Park is set in a humble 240 sqkm belt nestled in the Western Ghats and houses a wide array of tropical flora and fauna with over 200 unique Indian species. Recognised as one of 36 most crucial biodiversity hotspots in the world, the sanctuary is now threatened by 3 infrastructure projects, announced by the state government. The alarming proposal resulted in widespread dissent with thousands of people coming together for the ‘Save Mollem’ campaign.

To know more about the hidden gems of South Goa, read The Charms of South Goa - Part II

---

---