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AI Home Addition Design

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A measured plan belongs on floor plan. This page needs the house you can already see.

Where it sits

Stories

Roof meeting

Addition reading

Projection

What the original house must keep

Keep the far faces

Corners away from the joint stay

Keep the far windows

Only the shared face may open

Keep the old ridge

It stays except where the new roof has to meet it

Addition

Addition

Addition

AI Home Addition Design

Set a new volume against the house that is already standing

The addition has its own footprint, height, and roof. The original house stays in the photograph, except the face where the new work joins. That shared face may open. The other faces, the existing ridge, and the windows away from the joint stay.

One new volume. The old house remains the reference.

Seven pictures of one volume

The place, the joined face, the roof meeting, the far faces, the far windows, the skin, and the same photograph each need a picture. Drop a file into the matching slot and the block fills.

  • Addition

    Name the side

    Off the kitchen and along the east wall are different joints.

  • Addition

    The joined face may open

    That wall can lose a window. The other faces may not.

  • Addition

    Tuck, continue, or turn

    A wing under the eave and a block that shares the ridge are different buildings.

  • Addition

    Far faces stay

    Corners away from the joint keep their cladding.

  • Addition

    Far windows stay

    Windows that do not touch the addition stay where the photo put them.

  • Addition

    Same skin, or a new one

    Matching the old cladding does not repaint the rest of the house.

  • Addition

    The same photograph

    The house you stood in front of is still the before.

Where it sits

Name the side, the rear, or the room it grows from

Off the kitchen and along the east wall are different joints. Write the face the addition touches and how far it projects. A volume that lands on the wrong side is a different house, even if the rendering looks finished.

The joined face

That wall may open. The others may not

The shared face can lose a window, gain a wide opening, or disappear into the new room. Faces that do not touch the addition keep their windows, their corners, and their cladding. The original roof stays except where the new roof has to meet it.

Height and roof

Decide if the new roof tucks under or continues

A one-story wing under the existing eave and a two-story block that shares the ridge are different buildings. Say the story count and whether the new roof continues the old slope, drops below it, or turns a hip into the joint.

Rules for the new volume

  • A place you named

    Side, rear, or a named room. The volume is not free to drift to a prettier corner.

  • The original mass

    Walls, windows, and the ridge away from the joint stay recognizable.

  • One face may change

    The joined face can open into the new room. That permission stops at that face.

  • Story count

    One story or two is written down, so a wing does not quietly become a second floor.

  • Roof meeting

    Tuck under, continue, or turn. The joint between roofs is part of the brief.

  • The same photograph

    The house you stood in front of is still the before. The addition is the difference.

Place it, then look at the joint

  1. 1. Photograph the face it joins

    Include the wall the addition touches and enough of the existing roof to judge height.

  2. 2. Describe the volume

    Story count, about how far it projects, and whether the new roof tucks under or continues. Say the joined face may open.

  3. 3. Find the old house

    The corners away from the joint should still match the photo. If a far window moved, this pass failed.

A new volume

Set a new volume against the house that is already standing

An addition is a new room-sized volume joined to a house you can already see. The original mass stays, except the face the addition touches. Roof, floor heights, and the way you walk from old to new have to be believable in the photograph. A glass box that ignores the eave is a collage.

Say where it sits: beside the kitchen, behind the living room, over the garage if the structure could carry it. This page does not engineer that carry. It shows the volume so you can reject a bad join before anyone draws a beam.

Facade design is the existing front. Exterior design restyles the house you have. Come here only when you are adding floor area, not when you are tired of the cladding.

Read the page from four sides

  • The join

    Old wall and new wall meet at a line you can point to. A blur is not a connection.

  • The eave

    Roofs have to decide who is higher. Two ridges that collide are not a proposal.

  • The door

    You need a way in from the house you already live in, not only a pretty exterior door.

  • The ground

    The addition sits on grade you can see. It does not float over a slope the photo forgot.

Where this page stops

The links below are the neighboring jobs. Each one keeps a promise this page does not make.

  • Exterior design restyles the house without adding a volume.

  • Floor plan is where the new room’s width and door are drawn, after the mass looks right.

  • Facade studies the existing front. An addition that changes that front should be checked there afterwards.

Addition questions

A new volume, the face it joins, and the rest of the house left alone.

Does the whole house get redesigned?

No. The original house stays, except the face the addition joins. That face may open into the new volume.

Can I add a second story over part of the house?

Say so, and name the footprint it sits on. A second story is still an addition with a joint. It does not restyle the rooms underneath unless they are on that joint.

What should I write about the roof?

Whether the new roof tucks under the existing eave, continues the slope, or turns at the joint. Story count belongs in the same note.

Will windows on the far side move?

No. Windows away from the joined face stay. Only the shared face is allowed to change.

How exact does the size need to be?

A side and a rough projection are enough to start: “twelve feet off the rear wall,” for example. A plan page is the place for room-by-room sizes.

Can the addition match the old cladding?

Yes. Ask for the same skin, or name a different one. Matching is a choice about the new volume, not a license to repaint the whole house.

Can the joined face and the existing roof be read from this photo?

Only if the frame includes the wall the addition touches and enough of the existing roof to judge height. A crop of one corner will invent the joint.

Show the wall the addition will touch

One photo of that face, plus where the volume sits and how many stories it is. The rest of the house is the part that must remain.