House design on a slope [Expert Advice]



Last updated : Sept 16, 2022
Written by : Arnoldo Plotkin
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House design on a slope

Is it more expensive to build a house on a slope?

All of the people interviewed agreed that building on flat ground was less expensive than building on slopes; and when building on slopes, it is less expensive to build on a downhill lot (where the slope goes down from the front to the back of the home) than it is to build on an uphill lot.

Which type of house might be best suited for a sloping lot?

Many house plans with a basement have a lower-level garage, and most are ideal for a sloped lot. While a drive-under garage may be considered necessary for a home on a sloped site, it is also another interesting architectural feature.

How do you build a house on a steep slope?

There are two ways to build a house on a sloped lot: using the “cut and fill” method, or making use of stilts. Cut and fill refers to the process of leveling out the ground for the foundation by adding soil, removing it, or both.

How hard is it to build a house on a slope?

Steep slopes are difficult to access with the heavy equipment needed to build your foundation. The time required to build your foundation is often increased, and it may be necessary to pump concrete to your foundation. This can mean increased costs. Sloped home sites also present drainage challenges.

What is a house built on a slope called?

Souterrain house or slope house is a house with soil or rock completely covering the bottom floor on one side and partly two of the walls on the bottom floor.

What is the most expensive part of building a house?

When it comes to the actual home construction, framing will be the most expensive part of the process. Based on the same $428K figure for the average custom home, framing will eat up about $41K of that budget. The cost of framing will depend on the materials you choose and the size of the home.

How expensive is it to build on a slope?

Typically, building on a sloping site will add an additional cost of approximately $20,000 – $50,000 compared to a flat block. To get a rough idea and understand the costs of building your new custom home, fill in the form and we will be in touch with you shortly!

What is a front sloping lot?

Sloping lot house plans are designs that adapt to a hillside. In other words — the lot is not flat. Many hillside home plans or sloping lot house plans are also walk-out or daylight basement floor plans where the design is intended for lots that slope down from front to rear.

Why is flat land good?

Pros of Flat Lots Great for limited mobility: If you or your family have a hard time going up stairs, flat lots allow for a ranch style home that doesn't require any stairs or steep driveways. They could have strong curb appeal: Many people love the look and feel of ranch-style homes.

Is a 20 degree slope steep?

Around 11-20% is considered moderate and gradients above 20% are considered “steep”.

Why do you think do some people build their houses on a slope?

1) Building on sloped land along the side of the hill can enhance the natural ventilation that your home receives. This natural ventilation, while a source of fresh air, also aids in decreasing the energy bills of your home by becoming less reliant on artificial cooling.

How much more do you build on a steep slope?

The ideal slope for in-ground building is a slope of 5 to 7 feet through the width of the house, or 15% to 20%. Building on steeper slopes often presents challenges, and this type of construction is carefully regulated by local jurisdictions that vary, as do local soil types.

How do you flatten a sloped land?

Add purchased subsoil to the bottom of the slope to build it up. Spread the soil over the ground to create a slight slope away from any nearby buildings. Distribute the soil to create a slope of 12 inches for every 50 square feet of ground. Rake the ground's surface until it is smooth.

How do architects use slope?

Architects constantly provide slope information on their drawings using gradients, degrees, or percentages depending on the application. For instance, roofs are noted using gradients, but cross-slopes on sidewalks are usually notated in degrees.

What can you do with a sloped backyard?

  • Determine the surface texture of your soil.
  • Build a deck.
  • Try landscaping in tiers.
  • Create a winding path or a staircase.
  • Consider a landscape waterfall.
  • Use the slope to your advantage when building vegetable beds.
  • Create a destination at the bottom of the slope.

How can I save the most money when building a house?

  1. Reducing Square Footage. One way to dramatically reduce costs is to just reduce the square footage of the entire home.
  2. Choosing a Stock Design.
  3. Reducing Lineal Feet of Logs.
  4. Opt for a Simple Roof System.
  5. Use Drywall on Interior.
  6. More Modest Kitchen.
  7. Don't Take a Bath on Your Bath.
  8. Avoid Change Orders.

Is a rectangular house cheaper to build?

Simple, rectangular-shaped rooms are easier to build, and save on construction costs. Generally, square-shaped homes are more economical to build than rectangular-shaped homes.

How much does a 2000 square foot foundation cost?

An average home is about 2,000 square feet and a foundation can cost from $13,000 (including materials, labor and permitting) to more than $40,000 if it's a basement foundation. For a project on the low end, budget around $15,000 in case of cost overruns and around $45,000 for a project on the higher end.

Is it cheaper to build a house on stilts?

When you compare the costs of building a home's foundation, you'll find that building on stilts is the most expensive option. This is due to the increased engineering and material costs that come with this type of construction.

What is a danger that is involved with building a house on the side of a hill?

Water and erosion are the leading causes of landslides, making Northern California a notably dangerous place to build a hillside home. That said, earthquakes are not discerning in the damage they inflict and may cause devastating landslides even in SoCal's arid climate.


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House design on a slope


Comment by Randell Carlos

so so soso so oh so uh foreign


Thanks for your comment Randell Carlos, have a nice day.
- Arnoldo Plotkin, Staff Member


Comment by rainavasl

hi guys my favorite project is behind me and it costs 2 million this house was a difficult project because it was built on a steep slope it is a representation of a long history of hard ideas failures creativity and success there are a lot of challenges and benefits to building a house on a slope i'm going to tell you all about them in this video we knew from the beginning that constructing a basement for this kind of house would be a very complicated process that couldn't be done all at once the step-by-step joints can be seen on the columns and walls behind me here's the reason why we did that this was because every step required new measurements of sizes and heights as well as a very slow and steady pouring of concrete because of the large size of the wall so we poured it in several stages yesterday i was meeting with clients and they said that in all their lives in austin they have never seen so much concrete in a residential building when we completed the project and got the structured drawings we sent them out to 92 organizations as a result we got only two replies many contractors who visited this object and saw its landscape refused to do it because of its complexity of course i understand them as it is much easier to build three slabs on a flat plot than this complex construction anyway we managed to find the interested team and got involved in the project so we went on together step by step including our work on the drawings it was a three-way approach we should start with the garage basement it was the starting point that allowed us to calculate every floor's elevation and end up at the final point on the top it is vital to construct the basement eight inches higher than the ground when building on a slope the basement must be eight inches taller than the ground at pickpoint the garage would either be on too high a level thus causing a big angle of the driveway or the ground level had to be lowered to compromise between the top and bottom lines we had to arrange our calculations i even had to order the drawings 3d visualization to see how much ground level would be lowered or heightened to get the right basement level this visualization gave our contractor and us the understanding so that they could complete the project based on the drawings and the visualization this is called a multi-move because we had to do a lot of things at the same time the first thing we did was remove soil then we completed the form when we were done we put the rebar in the form and then poured the concrete after that we repeated all of these steps again and added plumbing to fix all the pipes and passed the inspection so we could move on to get through all of these stages at once we broke them up into several steps a lot of the systems were inside the wall so they had to fix them before they could add a sewer pipe for example care had to be taken at each step of the multimove one thing i wanted to work on is making sure the frame heights matched up with the basement our mistake with it meant we had to fix it in another house for this house we made sure the joint worked well i mean that the basement and retaining wall's height should be the same as the first floor frame's height how might we do that after we put in the concrete we made the frame this is how it worked so we fixed the frame then the builders built the second floor you may see that a retaining wall is a simple line on the drawing that you can make with just a few lines when you pour it that's it but it's not so simple the 18 foot high wall about 6 meters needed drainage and waterproofing we made it so long to help the water flow away from the wall when it is coming down from the slope this is important to have as water runs through it the french drainage pipe takes it and sends it to one side the waterproofing stops the water from getting through the wall and into the house itself another thing to note is that the one foot wall also stops the water from getting inside an element that i think is a good thing in the home we may utilize pure and elegant concrete walls as a design feature we're not going to cover this retaining wall with drywall and we're not going to paint it the concrete style with the fixings was so beautiful that it made me want to keep it as part of the loft style look it will make this house's interior design look better the wall will go all the way down the hall from the start to the end so the owner can see all the work that went into this house every time he goes by the basement portion of the project's cost and conditions are the most startling a first slab can be done in one month however this one took three months a typical basement construction cost between twenty to thirty thousand dollars with a maximum cost of fifty thousand dollars this project on the other hand cost around a hundred and forty thousand dollars with a projected cost of one hundred and ten thousand dollars why spend so much money building on a slope when you can buy a flat spot and build faster and cheaper the answer is behind me the best views you can get are from a house on a slope just imagine that you wake up every day and go into your living area to see this beautiful scene from the window right or in the evening you can sit in front of your fireplace near the windows and light a nice fire we'll have an oval fireplace with a hanging chimney so you can sit near it and look at this view it's fun to think about how cool it was to build on a slope how much money time and effort you spent and how beautiful this view is every night when you build your dream home the view and the way you feel are worth it when you build your house on a slope you get even more benefits than the great views there are a lot of ways to divide your home like by floors and by shifting floors people can completely separate their living space or bedroom from their kids room this way so you can't hear the noise of kids and dogs having some fun people might be on a lower level because your house is on a slope so it has separate zones for the floors that have been shifted another big benefit of having a house built on a slope is how it looks inside you can use rocks that are already in the ground a cliff is an example of where you can get a lot of rocks to make a unique design you can also plant trees flowers and grass there we try to save all the trees to make a unique landscape design with the trees and stones if you build a house on a slope you must choose between two types of driveways assume you live higher than the road in this scenario pay attention to the slope angle and your positioning like in front of the garage i suggest a level area in front of the garage then a slope second if your house stands lower than the road assume responsibility for the water stream withdrawal system if the water stream goes down the driveway or home create the drainage system immediately in front of the garage doors then the water will flow away a drainage system is unnecessary in this property because a driveway is opposite however due to the steep slope we will be building a level space to allow automobiles to park directly in


Thanks rainavasl your participation is very much appreciated
- Arnoldo Plotkin


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