Shed on a steep slope

I have designed a tiny building/shed (only 13 square meter) which is sited on a steep slope (approx 30 degree) in country Victoria (Australia).

This building is to be partially dug into the hill, and therefore requires an approx 2 meter tall retaining wall, which also at the same time acts as the walls on two sides of the building. The other sides of the building contain large feature windows on both sides of a large central column supporting the very heavy roof, which will be covered with soil and grass, so that the building will almost be invisible from the top of the slope.

The shed/building will only be large enough for a Queen size bed, a desk and a wood heater.

I need a very cost-effective engineering solutions, as I will be building the structure myself on the weekends. Due to the inaccessibility of the site all material needs to be carried by hand to the site.

Specifically I need engineering drawings and specifications for:

1. Retaining wall / house wall solution - this retaining wall also acts as a strong house wall, so will need drainage system, geotech membranes, insulation etc I imagine it may require being built using concrete blocks reinforced with steel rods

2. Retaining wall system to secure slope a) adjacent and b) downslope of the house (perhaps these could let water through?)

[url removed, login to view] and Specification of reinforced concrete slab that will support the heavy load of the grass roof and building in general. This concrete slab is also part of the retaining wall system.

4. Wall and column design and specifications including the large feature windows (which envelope the corner of the building) - I imagine the design may require a steel column? or laminated timber columns? what size, dimensions, design etc.

Lintel designs/specs for windows and the one door is also required.

4. Design of Roof structure. i envisage second hand timber as rafters. The roof eaves should protrude by 70 cm on the two high sides of the building.

Please also design/advise suitable angle of grass roof.

NB: the inside dimensions (foot print) of the building is basically only 3 m x 4m + a little equilateral triangle (the sides of which all measure approx 2m). So very small. The roof eaves should protrude by 70 cm on the two high sides of the building.

Any excess water from roof will be captured in rain water tanks. there is no need for plumbing but the house will have mains electricity.

The site is only 15m wide, has many old/small fruittrees on it -it also has very basic (and unsatisfactory) low retaining walls of 50-60cm heights which have deteriorated.

Please also address any engineering problems I may have overlooked.

photos of a small wooden model are attached.

Skills: AutoCAD, Civil Engineering, Structural Engineering

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About the Employer:
( 0 reviews ) Melbourne, Australia

Project ID: #2643566

16 freelancers are bidding on average $618 for this job


i would like to this project,i understood what you want to design [url removed, login to view] check my private message.

$600 AUD in 10 days
(25 Reviews)

Please check your PM for details.

$585 AUD in 7 days
(18 Reviews)

I already have 100% satisfied employer for the similar job like Yours.

$700 AUD in 14 days
(12 Reviews)

Hello, I am a Quantity Surveyor & a AutoCAD Operator. I can do this Project perfectly. I have clearly understood your Proposal but i need to have more ideas while doing the project. What i understood from your Pr More

$700 AUD in 15 days
(3 Reviews)

Hi, I'm structural engineer and I can design walls, roof and column for a good price. Best regards, Danijel

$250 AUD in 14 days
(2 Reviews)

interested....see PMB

$550 AUD in 7 days
(0 Reviews)

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$700 AUD in 15 days
(0 Reviews)

Hi, I would like to work with you. And I will come up with the country cottage design. Please see your personal inbox for the Design Proposal. Thanks!

$750 AUD in 14 days
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2008 graduate architect Experience in architectural and civil engineering study. Executive projects, autocad drawings, details. Experience in freelance jobs. [url removed, login to view]

$700 AUD in 12 days
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Gladly at your service, please kindly check your PMB.

$700 AUD in 5 days
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I think i will be the one who will satisfy you with your requirements.

$500 AUD in 15 days
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Civil Engineer with 20 yrs experience in construction at inaccessible project sites.

$700 AUD in 15 days
(0 Reviews)

we have understood your basic needs and have all expertise regarding structure design of foundation, retaining wall and slab Assuring you best of our services

$750 AUD in 15 days
(0 Reviews)

Hello I'm a certified structural engineer and an experience 3D graphic designer . I can design,calculate and draw any kind of plans form architectural and structural plans to pipes networks and terrain modeling plans. More

$500 AUD in 3 days
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I understand what you need for your project. My experience in the development of such projects is more than twenty years. Quality will be an excellent level!?

$500 AUD in 5 days
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This looks like a nice little job. I'm an Engineer practicing in Sydney - I'm know what materials will be buitable for a self build in Australia. I'll work through the details with you. I'll offer neat hand sketches More

$700 AUD in 7 days
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