Engineering & Architecture

Guidance

How to make each work product, and the drawing rules architects use. You will not know how to make some of these yet. Read the section, open the resources, practice on scrap paper — then make the real one.

Jump to

Required: Research · Client profile · Brainstorming & sketching · Floor plan

Pick two: Exterior elevation · Interior design plan · Landscape plan · Cost analysis · Community plan · Model · Bergen County impact · Custom idea

Required 1 · Research

Before you design one, find out what real tiny homes are like. Look for homes that fit our limit: 650 sq ft or less. A 2,000 sq ft "small house" teaches you nothing about this project.

Keep your notes in your project notebook, organized by topic. Save the link for every fact so you can find it again.

What to find out

  1. Cost. What do tiny homes actually cost? Built by a company vs. built yourself?
  2. Size. How big are they, in square feet? How wide and tall?
  3. Common materials. What are the walls, roof, floors and siding made of?
  4. Construction techniques. How are they framed? How is a house fixed to a trailer?
  5. Sustainable options. What makes a tiny home greener?
  6. Luxury options. What do people add when money is no object?
  7. Types. What different kinds of tiny homes are there?

Three reasons people go tiny

These come from the Why Go Tiny? slideshow in class. Use them as a starting point for your research, not the end of it.

Theme 1Sustainability

Less energy to heat and cool. Solar panels, recycled materials, composting toilets, rainwater storage.

Theme 2Economics

Cheaper to build and own. Tiny house villages for people who need housing. Backyard units that earn rent.

Theme 3Lifestyle

Travel, minimalism, living off grid, or just a home built exactly for you.

Types of tiny homes

On wheels

Built on a trailer so it can move. Has to stay small enough to tow — about 8′-6″ wide and 13′-6″ tall.

On a foundation

Sits on the ground like a regular house. More freedom on width and height.

Backyard unit (ADU)

A second, small home on a property that already has a house. Often rented out or used for family.

Shipping container

A steel container converted into a home. Strong, stackable, and a fixed size you design around.

Bus, van or RV

A vehicle converted into a home. Built for travel.

Tiny house village

A group of tiny homes sharing land, paths and amenities.

Luxury ideas students have found: walk-in closets, bathtubs and double showers, a chef's kitchen, guest rooms, Murphy beds that fold into the wall, decks and patios, lofted bedrooms, stairs with storage built in, fold-out desks.

Required 2 · Client profile

To design anything well, you have to understand the person who will use it. Your client is the one person (or family) this tiny house is for. Every choice you make later should trace back to something in this profile.

You have two options:

Option A

Use a ready-made client

Watch the real tiny home owners in the four videos below and pick one. Capture as much detail as you can.

Option B

Make your own

Invent a client, or generate one with ChatGPT. Then make sure it answers every question in the template below.

What the profile has to answer

Box The question
Name & locationWho are they, and where will the house be? Climate changes the design.
BackgroundAge, family, job, interests.
ValuesWhat do they care about most? List a few things.
WantsFeatures they would like in the house.
NeedsFeatures they must have. The house fails without these.
TradeoffsWhat can they live without? In 650 sq ft, something has to go.
LimitationsBudget, health, pets, a job that needs a desk, a bad knee that rules out ladders.
StyleWhat look would they choose? Modern, rustic, cottage, industrial, Japandi…

Two clients from past students

Example

The retired teacher

68, a retired literature teacher, downsizing to a quiet reading retreat near nature. Cottage style: warm wood, soft colors, cozy nooks. Needs: a bed on the ground floor — no climbing into a loft — built-in bookshelves, a reading nook by a big window, a small kitchen with a tea station, an outdoor sitting porch, and a wide, accessible bathroom.

Example

The environmental consultant

34, loves hiking and gardening, wants the smallest footprint she can manage. Japandi style: natural wood, earthy colors, uncluttered space. Needs: solar panels, rainwater collection, a composting toilet, eco-friendly materials, and smart storage so the small space still works for cooking, working and relaxing.

Notice how the profile drives the plan. The retired teacher's "no climbing" became a ground-floor bedroom. The consultant's off-grid needs became solar panels on her elevation drawings and a rain tank on the back wall. If you can't point to the line in your profile that explains a design choice, ask yourself why you made it.

Required 3 · Brainstorming and sketching

Generate lots of ideas, quickly. These are not final drawings. They are how you find the good layout before you spend hours drawing it properly.

Start with bubble diagrams, then turn your best bubbles into rough floor plan sketches.

Bubble diagrams

A bubble diagram is a map of how the rooms relate — no walls, no measurements. Draw one bubble per space, sized by how much room it needs. Then connect the bubbles that need to be next to each other.

A bubble diagram: a big living bubble in the middle joined by thick lines to the kitchen and the entry, the kitchen joined by a thick line to the bathroom because they share a plumbing wall, and thin lines from living to the sleeping loft and to an outdoor deck drawn dashed LIVING biggest space KITCHEN BATH SLEEP LOFT ENTRY DECK outdoors plumbing wall stairs must be next to each other close by no line = keep apart
One example, not the answer. Keeping the bathroom and kitchen on the same wall puts all the plumbing in one place — cheaper to build and easier to fix.

Floor plan sketches

Take your best bubble diagrams and sketch them as rough floor plans. Draw several different layouts. Label every room and the big furniture. Write notes beside each one: what works, what worries you. Then pick a winner and say why.

Keep the size honest. A sketch can be rough, but if it would be 900 sq ft drawn properly, it is not a tiny house sketch.

A pencil floor plan sketch with rooms, windows, doors and furniture labeled, and bubbles drawn over the living room and entryway
Sketch 1 of 2 for the retired teacher. Bubbles mark the open zones, and every window, door and bookshelf is labeled.
A grid-paper sheet of small house exterior sketches and two floor plan sketches, with notes and the word winner beside option B
Several exterior ideas and two floor plans on one sheet, with notes, a "no" and a "maybe" — and the winner marked.

Required 4 · The floor plan

The floor plan is the most important drawing an architect makes. Picture slicing the whole house horizontally about 4 feet above the floor, lifting the top off, and looking straight down. Everything you cut through — walls, doors, windows — is drawn dark. Everything below the cut — counters, toilets, stairs, furniture — is drawn lighter. Anything above the cut, like a loft, is drawn dashed.

Use the floor plan guide PDF (link at the end of this section) alongside this page. It is a great resource for what a good floor plan looks like and how to draw one.

Pick a scale

Houses are usually drawn at 1/4″ = 1′-0″: every foot of house becomes a quarter inch on paper. Past students have also used 3/8″ = 1′-0″ to fill a bigger sheet. Pick one, use it for the whole drawing, and write it in your title block.

At 1/4″ = 1′-0″1 ft → 1/4 in

Count feet, divide by 4, and you have inches on paper.

A trailer house8′-6″ × 24′

Draws at about 2-1/8″ × 6″. Fits on letter paper easily.

Our largest25′ × 26′

650 sq ft. Draws at 6-1/4″ × 6-1/2″. Still fits on letter paper.

Check your size
area = length × width

Not a rectangle? Split the plan into rectangles, find each area, and add them up. Write the total under the drawing title, like "204 SQ FT". If you have a loft, list it separately: "Main floor ___ sq ft, loft ___ sq ft".

Line weights

A floor plan uses at least three line weights so it reads at a glance. Press hard for walls, medium for things below the cut, light for dimensions. If every line is the same, nobody can tell a wall from a countertop.

Four line types from heaviest to lightest: a solid black wall, a medium line for counters and fixtures, a thin line for dimensions and door swings, and a dashed line for things above the cut such as a loft HEAVIEST — walls cut by the 4-ft slice. Solid, or two lines with shading between MEDIUM — counters, fixtures, stairs, furniture below the cut, seen from above LIGHT — dimensions, door swings, textures the thinnest lines on the sheet DASHED (hidden) — above the cut lofts, upper cabinets, roof overhangs
The rubric checks that lines are the "appropriate type": wall, hidden, dimension. This is what that means.

Walls have real thickness

A wall is not a single line. Most houses are framed with 2×4 studs, which are actually 3-1/2″ wide. Add 1/2″ drywall on each side and an interior wall is about 4-1/2″ to 5″ thick. Exterior walls carry insulation and siding, so draw them about 6″ to 8″ thick.

At 1/4″ scale, a 6″ exterior wall is about 1/8″ on paper. Draw both faces of every wall, then shade or hatch between the lines to show the framing material.

Symbols

Architects draw the same things the same way, so any builder can read any plan. Doors are drawn open, with a thin arc showing which way they swing. Door size is written as a small number like 3⁰, meaning 3′-0″ wide.

Eight floor plan symbols: a swinging door with its arc, a pocket door sliding into a hollow wall, a barn door sliding along the wall face, a window as thin lines in a wall, stairs with an arrow labeled up, a toilet and sink, a kitchen counter with a four-burner range and sink, and a refrigerator next to a dashed loft above 30 SWING DOOR arc = swing · 3⁰ = 3 ft wide POCKET DOOR slides into the wall BARN DOOR slides along the wall face WINDOW thin lines in the wall UP STAIRS arrow + UP or DN TOILET + SINK drawn as seen from above RANGE + SINK counters are 2 ft deep REF LOFT ABOVE FRIDGE · ABOVE dashed = above the cut
Pocket and barn doors are popular in tiny houses because they don't need floor space to swing open. The floor plan guide has many more symbols: bathtubs, showers, washers and dryers, every window type.

Dimensions

Dimensions are what make a drawing buildable. Draw every dimension with a ruler, outside the plan where you can, so the inside stays clear. Use two or three strings of dimensions around the outside, from big to small:

  1. Outermost: the overall size of the house.
  2. Next one in: where the walls are, and the centerlines of doors and windows.
  3. Closest (if needed): small details — jogs in a wall, cabinets, fixtures.
Anatomy of a dimension: two extension lines that start a small gap away from the wall and run a little past the dimension line, 45 degree tick marks where they cross, and the number written above the line the number sits above the line and reads from the bottom of the sheet 16'-0" runs a little past the line 45° tick marks, drawn heavier small gap — never touches the wall write feet and inches: 16'-0", 8'-6"
Leader lines work the same way: a thin line with a clear label at the end. Label them so nobody has to guess what they point to.

Putting it together

A small trailer tiny house, drawn the way yours should be. Walls dark, fixtures medium, dimensions light, the loft dashed, a north arrow, and a title with the scale and square footage.

Example floor plan of a 24 by 8 foot 6 inch tiny house: a bathroom with shower, toilet and sink at the left end behind a pocket door, a kitchen with refrigerator, sink and range along the top wall, storage stairs going up to a sleeping loft drawn dashed over the bathroom, and a living room with sofa and entry door at the right. Dimension strings run along the top, bottom and left side. Title reads floor plan, 204 square feet, scale one quarter inch equals one foot 30 SHWR BATH REF KITCHEN 1 UP ◂ LOFT ABOVE LIVING 6'-0" 13'-0" 5'-0" 24'-0" CL window 8'-6" 17'-6" 6'-6" CL door FLOOR PLAN 204 SQ FT · SCALE 1/4" = 1'-0" N
Not to scale on your screen — on paper at 1/4″ = 1′-0″ it would be 6″ long. 24′-0″ × 8′-6″ = 204 sq ft. The circled 1 by the kitchen is an elevation marker: it says "interior elevation 1 looks at this wall." See the interior design plan.

Two floor plans from past students

A student floor plan with a kitchen, living room, bedroom, bathroom, closet and an outdoor sitting porch, dimension strings along the top and right, and a boxed title block along the bottom
The retired teacher's house at 1/4″ = 1′-0″. Clear room labels, window symbols, door swings, and a neat boxed title block: name (blurred), date, class, teacher, project, scale. To score higher: draw the walls with real thickness and shade them, and add the second string of dimensions locating each wall and window.

The overview page shows the other student's main floor: 24′ × 27′ = 648 sq ft, shaded walls, and a dimension on nearly everything. Her loft got its own drawing:

A student loft plan showing the outline of the loft with shaded walls, the stairs in one corner, a bed with side tables, and dimensions
A loft gets its own floor plan, drawn at the same scale as the main floor, with the stairs lined up in the same spot.

Lofts and second levels

Two ways to show a loft. On the main floor plan, draw its edge as a dashed line and label it "LOFT ABOVE." Or draw a separate loft plan, at the same scale, with the stairs in the same place on both sheets. Label stairs "UP" on the lower floor and "DN" on the upper one.

Before you hand it in

Pick two more

Choose two of the products below. Each one has its own rubric row on the scoring page. Read the whole section before you start — most of these need research and practice first.

Exterior elevation

An elevation is a flat, straight-on view of one side of the house. No perspective, no vanishing points. Because nothing is distorted, it shows true heights — which a floor plan can't. It also shows what the outside is made of: siding, roofing, windows, doors.

Name each elevation by the direction it faces — North, South, East, West — or Front, Rear, Left, Right. Write the scale directly under the title. Draw it at the same scale as your floor plan, or one that fits the sheet.

Example exterior elevation of a tiny house on a trailer: lap siding drawn as horizontal lines, a standing-seam metal roof, a loft window, a kitchen window, an entry door with a glass panel and a living room window. Height dimensions on the right read 2 feet ground to floor, 10 feet 6 floor to eave, 1 foot eave to ridge, 13 feet 6 overall. Length along the bottom reads 24 feet. Titled south elevation, scale one quarter inch equals one foot METAL ROOF LAP SIDING 1'-0" 10'-6" 2'-0" 13'-6" 24'-0" SOUTH ELEVATION SCALE 1/4" = 1'-0"
Major heights on one side, overall length along the bottom. Textures — siding lines, roof seams — are drawn light so they don't fight the outline. 13′-6″ is about the tallest a house on wheels can be and still be towed.
A student sheet with four exterior elevations labeled back, side-left, front and side-right, showing vertical board siding, a gable roof, solar panels, doors, windows and dimensions
All four sides on one sheet at 3/16″ = 1′-0″. Each view is labeled. Vertical board siding is drawn as a texture. You can spot the client's solar panels and the rain tank on the back wall. Major dimensions on every view.
Your exterior elevation needs

Drawn to scale with a ruler. Each view labeled, with a title block. Textures that show the materials — siding, roofing, trim. Major dimensions: overall length, wall height, and total height.

Interior design plan

Two parts: one interior elevation, and a design board of samples.

An interior elevation is a straight-on view of one wall inside the house — the kitchen, the living room, a lounge. It shows what a floor plan can't: how high the counters are, where the upper cabinets start, what the backsplash is made of. Mark which wall you drew with an elevation marker on your floor plan, like the circled 1 on the example plan.

Example interior elevation of a kitchen wall: a refrigerator at the left, an oven with an exhaust hood above it, base cabinets with a drawer row, a countertop, a tile backsplash and upper cabinets. Dashed V lines on each cabinet door point to its hinge side. Vertical dimensions on the left read 3 feet to the countertop, 1 foot 6 of backsplash, 2 foot 6 of upper cabinets, 1 foot to the ceiling, 8 feet overall. Titled 1, kitchen elevation, scale one half inch equals one foot REF EXHAUST HOOD UPPER CABINETS — LIGHT OAK WHITE SUBWAY TILE BACKSPLASH COUNTERTOP BASE CABINETS dashed V points to the hinge side 4" TOE KICK 3'-0" 1'-6" 2'-6" 1'-0" 8'-0" 1 KITCHEN ELEVATION SCALE 1/2" = 1'-0"
Interior elevations show heights. Widths belong on the floor plan — don't repeat them here. Counters are almost always 3′-0″ high; upper cabinets usually start 1′-6″ above the counter. A small room can be drawn at a bigger scale, like 1/2″ = 1′-0″, to fit the detail.

The design board is where the room comes alive. Collect picture samples of the actual things you would put in the space: paint colors, wallpaper, flooring, textures, furniture, lights. Arrange them on one page with labels. Every choice should fit your client's style.

A student interior design board with an interior elevation, paint swatches and furniture samples
An interior design plan from a past student.
Your interior design plan needs

One interior elevation (kitchen, living room, lounge…) that follows the elevation rules: drawn straight on, to scale, titled, with heights dimensioned and materials labeled. Plus picture samples: paint colors, wallpaper, textures, furniture.

Landscape design plan

A landscape plan is a floor plan of the yard: the property seen from straight above, with the house as a simple outline. It shows where every tree, garden bed, path and patio goes.

Draw it to scale with a ruler, then color it — green for lawn and plants, browns and greys for paving and gravel. Trees are drawn as circles the size of their full-grown canopy. Label each plant with its actual species ("red maple", "boxwood"), and each hard surface with its material ("pea gravel", "brick pavers").

Think about your client. A gardener wants beds and a water source. A retired reader wants a shady spot to sit. Off-grid clients might want a rain garden.

A student landscape design plan drawn in color
A landscape design plan from a past student.
Your landscape plan needs

Drawn to scale with a ruler, with neat lines of the right type. Drawn in color. Tree and bush species, and gravel or brick types, all labeled.

Cost analysis plan

What would it actually cost to build your tiny house? First research what tiny houses cost in general. Then price the specific materials and appliances in your design.

Organize it so someone can read it in a minute: a table, grouped by category, with a total at the bottom. Write down where every price came from.

Category Item Qty Each Total Source
Walls2×4 studs, 8 ft $$link
Flooringby the square foot $$link
Siding  $$link
Roofing  $$link
Patio / outdoor  $$link
Appliancesfridge, range, water heater… $$link
Furnishingsbed, bedding, sofa… $$link
Total$

A layout to copy, not a price list. Fill in real prices for the materials in your design. Your floor plan tells you quantities: wall lengths, square feet of floor, number of windows.

A student cost analysis table for a tiny house
A cost analysis from a past student.

Tiny house community plan

Zoom out. Design a piece of land with several tiny houses on it — a tiny house village. Draw the whole plot from above, to scale, with its total size dimensioned accurately.

Place the houses so each one gets light, privacy and a way in. Then design what they share: pathways, gardens, a common building, parking, places to play or sit outside.

A student plan of a tiny house community
A community plan from a past student.
Your community plan needs

The total plot size, dimensioned accurately. Several houses placed on it. Any other community amenities. Pathways, gardens and outdoor activities.

Mixed material model

Build your tiny house in foam board at the same scale as your floor plan. That means you can lay your floor plan down as the base and build the walls right on top of it.

Build exterior walls, interior walls, and the details that make it real: countertops, lofts, stairs. Then make it rich in detail with color-printed patterns and other materials: print wood siding or tile and glue it on, use clear plastic for windows.

You get one piece of foam board. Plan your cuts before you make them. You can buy more if you want to.

The gable end of a foam board tiny house model covered in a color-printed vertical wood siding pattern
A printed wood-siding pattern on the gable end matches the siding on the exterior elevation.
A student tiny house model with the roof off showing interior walls, counters and a loft
Interior walls, countertops and a loft, all at the floor plan's scale.

Hobby knives cause most of the injuries in this room. Always cut on a mat, pull the blade along a straight edge with your fingers behind it, and make several light passes instead of one deep one. See shop safety.

Foam board is thick. At 1/4″ scale, a 3/16″ board is a 9-inch wall — close to a real exterior wall. Decide whether your walls sit inside or outside your plan's wall lines before you cut, or every room comes out the wrong size. The Desktop Organizer guidance shows both ways to join corners.

Bergen County community impact

A research proposal, not a drawing. Find a real place in Bergen County that could become a tiny home community, and make the case for it.

  1. Where? Identify a real space. Include maps.
  2. Who would live there? Low-income families, people experiencing homelessness, seniors, young people leaving foster care…
  3. What would it do to the town? Research how communities have actually responded when low-income housing was proposed nearby.
  4. What would it cost taxpayers? Research it, then make a simple proposal for paying for it.

Custom idea

Have another way to show part of your design? A 3D model in Onshape, a video walkthrough, a perspective rendering, a working mechanism like a fold-down bed? Talk to Mr. Hubbard before you start. You'll agree together on what it has to include.

The presentation

Projects are scored during your presentation. Bring every product: the four required ones and your two picks. Photograph your drawings in good light, straight on, with the whole sheet in frame — a blurry photo of a good floor plan scores like a bad floor plan, because nobody can read it.

Start with your client. Every design choice you show should connect back to who they are.