Construction
Creative, Affordable, Durable, Sustainable, & Adorable ADUs in California
Cal Earth inspirational workshops and hands-on classes offer a new way to build real estate
Today we took a field trip to the Cal Earth build & test site in Hesperia. This educational builder camp sits in Hesperia, CA because it has extreme heat, freezing cold temps, and is on a fault line. Additionally, Hesperia experiences flash flooding & washes, so it makes for a perfect test ground.
Superadobe buildings are Seismic & earthquake proof, fireproof, flood, & wind proof. They can handle snow loads and pressure. They don’t need rebar or concrete to build. They look super creative & flowy, but they are actually extremely structurally sound.
Many of the test structures at the Hesperia Cal Earth site are not maintained on purpose to see how they stand the test of time. This school has truly been built out by its students, and the first structure built in 1990’s is still standing today. It was such a fascinating experience!
Meet the Superadobe
If needed for refuge or quick builds, these structures can pop up camp in just a couple days. ‘Water village’, pictured here with Cal Earth volunteers Giovanni & Marco, is an on-site example of a cluster of single room homes, built to serve as a replica of what an actual refugee community might look like. Although designed to be temporary housing, this little village has been standing for the last 20 years.
Since superadobes are so durable, they can also stand the test of time for single family builds. Don’t feel like buying a ‘cookie cutter’ tract home? Cal Earth Institute offers preapproved plans – if you sign up for one of their workshops you’ll get a copy 😉 Of course, this is a part of the reason why we went. What’s a workshop without implementation?
We’d love to hear in the comments if you know anyone who has built a superadobe, or if you plan to build one yourself.
What Makes an Adobe Home a Superadobe?
Nader Khalili is the inventor & architect from Iran, who used to build skyscrapers for a living in Los Angeles, but he wasn’t fulfilled. He discovered Rumi, & changed his direction into sustainable building.
Not long after, Nader invented the ‘superabdobe’; which is a permanent Adobe structure. Rather than a traditional Adobe that cannot withstand a natural disaster, Superadobes are much more durable. Nader has since moved on from this realm, but his vision lives on through Cal Earth Institute.
Khalili loved biomimicry, mimicking designs and structures from nature. His designs include the ‘Seashell dome’; ‘Reptile walls’; and the ‘Koala pouch’. Not everything was biomimicry, however. The dome-obsessed architect also incorporated roofless domes for high heat; apses, and pottery domes.
Supply List to Build a Superadobe ADU
I loved how easy the supply list was. These were things that even I could carry, and didn’t need a huge truck to transport.
- 4 pt double pronged galvanized barbed wire; 12-14 gague thickness.
- 14 inch diameter bags to make 12 inch walls, just FYI you lose some width when you fill the bag with earth.
- Need coffee cans, or gallon buckets, depending on width of bags.
- Shovels,
- Tamper,
- Wheelbarrow,
- Scissors or knife
- A cement mixer or electric mixer makes things go way quicker.
- Level
- Wire cutters
- Water source
Want the FULL supply list? That’s still super short? Just TEXT “Cal Earth Supply List” to Angie at 949-338-7408.
Another thing that’s really neat is you don’t have to build a shelter at all with the earthbags from Cal Earth. You can build benches, stairs, planters, pools, fountains, fences…an Amphitheater for your Hipcamp…or whatever flowy and functional structure your mind conjures up 🙂
Pictured right is Daniel & our new Cal Earth workshop friends practicing with with the tamper. I can just see his wheels turning about what the next Flower Den Superadobe Retreat will look like – stay tuned, LOL!
Tips For Building a Superadobe Structure
A fun fact about superadobes is the heat transfer from outside is only at about one inch per hour. It won’t get too hot or too cold over the 12 hour daylight or nighttime hours. Not only do adobe’s prevent heat, they absorbs it, so that warmth slowly transfers inside to keep you comfortable at night.
Our first tips are about measuring and prepping properly for your fill:
- When laying barbed wire, measure from the center of your bag, and add 2 extra feet.
- When measuring for bag, walk the perimeter of the circle, and add 3 feet before cutting.
- Fold long bags in half & mark the middle. ‘Cuff’ the ends so plastic doesn’t fly all over.
- Partially flip bags inside out from each side, this makes them easier to fill. Be mindful to ONLY fill one side at a time.
More Pointers for a Proper Adobe Build
Since your main ingredient is earth from the land you’re standing on, you’ll want to ensure you’ve got the right mix. As you’ll be investing a lot of sweat equity, make sure to do a soil test before building to know how far you’ll need to go down in the earth to get past the living matter. It was stressed multiple times, make sure no living matter or roots are in your mix. Rocks bigger than your palm need to go too. If you can close your hand around it, then it’s fine, but larger than that should be tossed from the mix. Don’t worry though, it’s very forgiving to make the mix – there are adobe and superadobe structures across the world, & in all different types of terrain.
The tips kept flying fast at our one day workshop; I caught as many as possible. Figure they are best served here as bullet points:
- Keep everything dry & well ventilated if you are building in a wet area.
- Thickness of the wall depends on diameter of the build.
- Stabilize to resist erosion in flood zones, plan French drains & diversion. Your french drains can even be designed to water the landscape 😉
- Plan where the furniture will go before you start to build because a lot of it is built in; remember most furniture is square.. and there will be limited to zero squared angles in an adobe build.
- In case you’re only reading the bullets here, reminder to never use the top 1 ft of soil. Dig deeper to get to the inert materials like the sand, gravel, clay & silt.
- Orient windows south. Create & plan ‘Wind scoops’ facing the main direction of breeze in summer.
- PVC pipes, ceramic tubes, or even recycled bottles can be used for windows. Check out the custom ceramic windows pictured here.
- If doing radiant heat in floors, insulate under first!
- Utilize rocket stoves for simple heat sources.
- By the time you build up, its already compacted.
- Plaster right away, but don’t lay it in too thick, or else it may crack.
- Mesh or chicken wire is recommended to prevent cracking.
- Waterproof paint in wet areas.
- Note that limewash interior is anti fungal.
- If the bag needs to move, lift & pull. Don’t push.
Super Adobe Construction Made Simple
In essence, 4 main ingredients can build a pretty badass house. Sandbags, barbed wire, earth, & stabilizer. So easy. Sandbags can be made from polypropylene, hemp, or jute fiber. You can use long bags designed for adobes, or, just normal sandbags might work best if you’re doing the build with only a couple people. Stabilizer is added in the bag, like lime or plaster. From there, you’ll just cover the bags from UV rays and the elements while you build with a tarp, and you’ll be good. Note that jute might mold or rot, so it’s not recommended to build with it in winter. Supposedly jute is better for short term structures. The barbed wire acts as a velcro or glue between layers of bag and prevents the building from laterally sliding.
It seemed like the toughest part of the day was ‘completing the circle’ – which was the act of finishing each circular level on the stem wall. (That’s the straight vertical wall) It wasn’t difficult so to speak, just a process of folding both ends away from you, after propping the bag up with your feet (known laughingly as ‘bag wrangling’). Once the ends are properly sealed, you meet them up while keeping a tamp as a buttress at the seam. Then tamp the edge a bit so water goes out not in, with a slight angle to the outside. You can literally hear when the earthbags are tamped to correct compaction, the sound is louder and almost echos.
Additional important building techniques include a spring line for keeping the dome structure and trajectory of the dome even, and a compass to guide with proper perimeter and height. All these things were hand created with various tools and scraps we had on site!
Some Challenges Surrounding Superadobe Plans & Builds
No good thing comes without hurdles. In our current days of ‘buying a template ADU off Amazon’, the custom adobe build can face opposition.
Because the design elements with Superadobes are endless, it causes city officials to scratch their heads a bit. Designing these structures to easily follow the contour in the land and mold to the topography makes each one super cool, and super unique.
Let’s be honest….building officials are used to templates and squared angles. They don’t always understand domes, arches, and curves; and they aren’t extensively educated about them in the field. Confusion and inspectors don’t mix, so this means they can tend to deny the plans for your dream adobe without the proper education.
There was a point in time when Cal Earth had pre-permitted build plans, but alas, codes are everchanging… and they need to update permits. Feel free to donate time or funds to help Cal Earth get to the point of offering preapproved plans again.
Our Action Items to Support Superadobes
Locally here in CA, I’m going to see if we can get the City of Santa Ana to approve something. As Orange County’s epicenter, Santa Ana already has a ton of ADUs. Plus, many of the lots are flat with ample space for an additional small structure. And… my partner in life, Daniel, plans to talk to the building department in Sedona, AZ. We know Taos, NM is friendly to superadobes and green buildings; and would love it if you comment other adobe friendly build areas for the fellow nomads reading this blog 😉
In the meantime, one potential workaround with your city or HOA, depending on which one you’re in, is the umbrella of California’s statewide ADU law passed in 2020, SB 13.
How to Spread the Word about Superadobes and Get Involved
Of course, social media awareness always helps! You can follow & support Cal-Earth’s initiatives on Insta or Facebook. It also helps if you sign up for one of their affordable and educational hands on adobe building workshops.
If you’re inspired or thinking of building an ADU in Orange County, reach out, I’d love to come do a video tour whether you’re in progress, or have the finished adobe complete. Thought we could wrap this post up with one of Cal Earth’s favorite quotes from, you guessed, it, Rumi:
Building affordable housing on church properties and faith based campuses
Today we’re bringing you notes on a feel good panel we recently attended offering unique properties for affordable housing – churches! There were over 100 attendees on the zoom webinar from various faiths, geographic areas, and careers. It was neat to see the path of convergence among so many diverse and brilliant minds. Thank you to our friends over at YIMBY for putting this together ❤
Our Affordable Housing Panelists were:
Jill Shook, Making Housing Happen
Jill assists churches in exploring housing in site. She’s also an author.
Sarah Walker and Alexa Washburn, National Community Renaissance
National Community Renaissance is a non-profit affordable housing developer.
Honorable Rusty Bailey, former mayor of Riverside
Mr Bailey is now the director of Path of Life, a nonprofit with programs for housing, outreach, employment and more.
Bishop John Taylor 3rd, Episcopal Diocese of Los Angeles
A faith based community of 147 congregations, 40 schools, and 18 major institutions.
Elizabeth Hansburg, YIMBY
Thank you to Elizabeth & YIMBY for bringing this panel together. YIMBY advocates for affordable housing in California.
———
Bishop John Taylor 3rd led with some thoughts of ‘why’ from the perspective of the church. He said “We follow a savior who cares for the least among us. Helping with housing is literally showing love to our neighbor.” Furthermore, from a Christian standpoint, he mentioned one should note plenty of examples in the Bible where Jesus or the disciples expressed gratitude to someone who put them up for the night, or served them a meal.
One of the core values of most churches is to care about their congregation and the community, basically to be a salt and a light to everyone, regardless of their belief system. Obviously some churches have really missed the mark on this, which has caused attendance decline, and possibly some unused space(s) on the property. Churches who have stayed in touch with the daily needs of congregations know that there can be many temporary housing needs to fill. This can include members who are experiencing job loss, abuse, or catastrophe in their lives.
One way churches can help serve these needs is by offering affordable housing. It helps further a shared mission, helps the community, creates a legacy, and builds bonds for that organization to become a trusted staple in the neighborhood. Heck, if you’re a church in LA…just sharing your parking is a huge blessing :). But to promote Fair and affordable housing – now that’s a big stride toward The Great Commandment.
Here’s a helpful video YIMBY made for the city of Carlsbad, CA that explains why all cities need to plan for affordable housing. One can easily see how churches and city governments can build a bridge to Affordable Housing together by repurposing unused or under utilized space:
Nice concept repurposing church land. But what does it REALLY look like, and what’s the timeline?!
Southern California has a great example in Riverside with Mayor Rusty Bailey – and his ‘Love Your Neighbor Initiative’. Here’s a timeline screenshot that Mr. Bailey discussed for the City of Riverside, CA.
Interested? According to the experts, just 1/2 acre can work. Close to transit is helpful, but not required. Would you like an example to take to your town? We love those, and the city of Riverside in the spirit of ‘teaching a man to fish’ has shared a template for faith-based affordable housing with all of us. Check it out!
National Community Renaissance’s Sarah Walker has been working on an affordable senior housing project called Orchard View Gardens in Buena Park. Sarah also mentioned a development in Santa Ana, and has been bringing various affordable housing projects to fruition in OC. Here’s a site plan Sarah shared of Orchard View Gardens. As you can see the space offers multiple uses for both seniors and the community:
Getting your church started with affordable housing
It is possible to add income to various faith based properties and help with needs in your city – you can get started by contacting any of the experts on the panel, and your city planner. They need you to get the ball rolling.
We get it…you’re thinking this all sounds really cool… but how can someone reading this blog post who isn’t involved in building, zoning, or church leadership help?? Glad you asked!
5 Ways YOU can promote affordable housing in your community:
- Join YIMBY www.peopleforhousing.org & donate.
- Advocate for the city you live in to put in plans to change zoning.
- Particularly, encourage cities to do an ‘overlay zone’ for church properties to allow anyone who wants to develop this overlay zoning ability. This includes adaptive reuse.
- Order & read Jill’s book: Making Housing Happen, 2nd Edition: Faith-Based Affordable Housing Models
- SHARE this post with a decision maker at a church, or on your social media. Let’s spread more good word.
Want more info? You can watch the full replay here: https://youtu.be/GntTXqYXcfQ?t=22
Have other ideas for affordable housing or how churches can help incorporate extra land to serve the community? Comment below!
Read Full Post | Make a Comment ( None so far )New Property Trends: Modular Net Zero Homes
Hi friends! Have you been looking for a cheaper, better, faster way to build a home? Read on for some new trends in modular housing that might suit exactly what you’re looking for!
What is a modular home?
S2A Modular Model #GreenLuxHome 22
Modular is NOT manufactured. They are not your rectangle box mobile homes that might come to mind. They are created 90% in the factory, and about 10% on site, and they look and feel like any normal home. Modular homes aren’t different than a traditional stick built home, other than they are built indoors in a controlled factory environment, instead of outdoors.
Brian Kuzdas, CEO of S2A Modular, presented an interesting webinar today and told us about ways that modular homes are more sustainable for the Earth, take less time to create, have a 35% potential ROI for investors.
A couple of the main benefits of modular homes are they save you from shady contractors, and there is no compromise when it comes to design.
Other advantages of modular homes:
- Time (traditional home build time: 1 year; modular home build time: 3 months)
- Price (15-20% cheaper to build in factory)
- Strength (modular homes have to survive a literal transport, traditional homes don’t)
- Neighbors (much less stress on the neighborhood)
- Contractors (get to work inside instead of out in the elements)
- State inspections (less time waiting for inspectors)
One of the downsides to modular is financing. There aren’t a ton of lenders familiar with modular housing loans, but US Bank is one of them. Just reach out if you’d like a contact!
Want to build a modular home of your own?
S2A Modular Model #GreenLuxHome 13
Modular homes can be built ‘tiny’ as ADU’s, and size all the way up to 10,000+ sq ft mansions. There are 7 steps if you’re interested in building a custom modular home from start to finish:
- Feasibility study (cost $3500, and helps you determine how big you can build)
- Design (a modular architect is recommended, it will be less expensive in most cases)
- Construction agreement (firming up your choices)
- Engineering
- Permitting
- Site construction / setting modules
- Onsite completion (this is the last 10% of building that assembles the pieces & happens on site. These last materials also dictate the style and make your home exactly as you want it)
Check out https://www.s2amodular.com/ for various design styles & ideas to build a modular home of your own. Endless customization – so neat!!
Sustainability & Modular Homes
The modular homes that S2A builds are ‘Net Zero’ & ‘Net Positive’ when it comes to net metering. They also use high performing, affordable, solar panels and solar roof tiles with Graphene technology. You won’t have any utility bills.
Smart windows, doors, heating, cooling, insulation, & lighting are all used in these custom modular homes. Furthermore, organic building materials are used, and they are all resistant to termite, dry-rot, and mildew free….which saves money down the road. Li-Fi technology is used instead of Wi-Fi, and there is a singular app that controls these homes, which makes the systems un-hackable.
If you’re interested in planning your modular home build, just reach to Angie via text at 949-338-7408, or fill out the form below. We’ll help you plan for your perfect pad, & get you all connected to the right contacts to create your custom home 🙂
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Sustainable & Strong Housing – Meet Sol-Nest
Sol-Nest: Building for Humanity
Sol-Nest is “building for the right reasons” and changing the building industry while they do it! Sol-Nest strives to ensure families have a sustainable and affordable roof over their head. Sol-Nest provides people with shelter regardless of where they’re located. It is their mission to reverse the housing attrition trend by “creating resilience and lowering the threshold of affordability.”
Sol-Nest recognizes that fires, floods, hurricanes, earthquakes and tornadoes destroy thousands of homes every year. Your home is an investment, to some it is your greatest asset – the last thing you want to worry about is a natural disaster destroying your home. But how can you minimize the risk of natural disasters destroying your home without packing up and moving?
The Disaster Proof Housing Solution? Sol-Nest
Sol-Nest understands the economic effects that these events cause, thats why Sol-Nest developed a patent pending proprietary building technology that is less expensive than your typical building methods. The new building technology can be used in distressed areas to provide affordable housing, built to last longer than traditional homes. Sol-Nest, LLC homes are built to survive earthquakes, fire, floods and 250 MPH winds.
Hybrid I- Post and Panel System
The patent pending process under Sol-Nest, LLC is called HIPPS™. HIPPS stands for Hybrid I- Post and Panel System.
What Makes Sol-Nest, LLC/HIPPs homes sustainable and strong:
- The use of indigenous materials
- The use of Basalt Filament Rebar
- Stands up to an ever changing climate
- The method of laying concrete
- Quick assembly: little as eight weeks
- Designed to be implemented in large-scale housing projects
- Lower cost of building
- Ability to utilize solar power to build homes “off the grid”
If you’re thinking of building anywhere in the world, make sure you build strong. For more information, visit: https://sol-nest.com/
Interested in investing in this sustainable building technology? There’s opportunities in Puerto Rico and other gorgeous areas across the world.
Contact Garry Spain.
Phone Number: 310-625-6622
Email: intercorpresources@yahoo.com
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Orange County Real Estate Success 