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Many great ideas have first
been given form as a few scribbles on a cocktail napkin. Your plans for
improving your home may start out this way, too, but don't stop there.
Careful planning will help ensure the success of your project, and it's
much easier to correct a problem with an eraser than to have to correct
a problem after it has been built. This happens--don't let it happen to
you! |
Architects
and Designers |
If
you are planning a large addition to a custom home you will probably want
to hire an architect. Architects are professionals who have extensive education
and a license issued by the state, and are usually certified by the American
Institute of Architects (AIA). Under some conditions it will be necessary
to have an architect involved with your project in order to get approval
from the local building inspection division for your plans. If you need
special engineering, the architect will coordinate with engineering professionals
to get all the approvals that are required. Your local AIA should be able
to give you a list of qualified architects if you need one. Most typical
residential renovations will not require a licensed architect.
You may wish to work with
a designer before you begin to contact contractors, or you may find a
construction company that offers design services. Some designers specialize
in kitchens, closets, landscaping, or some other specific area. If you
want a specific or distinctive look to a new addition, it could be very
helpful to work with an interior designer as you plan the changes you
want.
Decorators can help you with
color selection, furniture and fabric choices, and floor coverings. Be
sure to allow enough time in the planning stages to be confident about
what you want. Good design professionals work with you to achieve what
you are comfortable with, and their experience will enable you to consider
options that you might not have thought of on your own. Whether you work
with an architect, interior designer, or your prime contractor, it is
helpful to understand the basics. The following sections will help you
understand what is involved in transferring your ideas from that napkin
into a working document that will guide your home improvement project
from start to finish. |
Plans |
Plans
(often referred to as drawings, blueprints, or prints) should work together
with the specifications (specs) to provide the information needed to complete
the project. Plans include drawings and notes, and in some cases may be
complete without the addition of specs. In other cases the specs may be
enough, if they give enough information to do the job. Problems arise when
there is contradictory information in the two documents; usually specs detail
additional information that will not fit on the plans. If both are not carefully
reviewed and compared, discrepancies will be discovered during the course
of construction. The solution may require changing work that has already
been done, and someone will have to pay for the change, but sometimes it's
not clear who should be responsible for the cost.
Another important rule is
to date every version of the plans and specs. Both will probably be changed
many times as they are being drafted. Once you have more than one copy,
it is crucial to be able to determine which version you are using. Refer
to the plans and specs by date in the contract documents, and keep track
of who has been given a copy of each document and which version they have.
If changes are made after a set has been given out, notify that party
in writing that the plans/specs have been revised. Keep records showing
the dates, persons, and documents involved in this process.
Engineering and other special
data may be necessary for your project. Structural calculations and energy-efficiency
calculations are just two areas where a certified professional may be
required to sign off on your plans before you will be given approval to
start by the building department. This may not be necessary for a simple
remodel, but if your project is more complex you may need to budget a
higher amount for the preparation of plans and specs to cover the cost
of these calculations and approvals. (In some cases the supplier may provide
the engineering documents at no extra charge, such as when you are using
manufactured engineered trusses for your roof structure.) |
Plot
Plan |
You
will need a plot plan for any project that alters the "footprint"
of your house. You can create a plot plan if you have a measuring tape and
a ruler; it is easier if you have a 50- or 100-foot tape and an architect's
scale ruler (available at most stationery stores). The architect's scale
is marked on one side so that each quarter-inch equals one foot (thus, a
line three inches long on your paper represents a twelve-foot-long wall).
If your drawing represents a large area, you may need to flip the architect's
scale to the side where one-eighth of an inch equals one foot (a line three
inches long represents a twenty-four foot fence, for example). If you want
to do much sketching or designing yourself, it is worth getting graph paper.
Different sizes of drafting paper come with faint blue squares marked off
at eighth-inch intervals, with slightly darker lines at the one-inch intervals.
This makes it much easier to sketch accurately, as your corners will be
right angles. It is important to scale your drawing correctly, so you can
tell if the additions and changes will fit.
If you are planning an addition,
you must check on the setback requirements of your locality. Even different
subdivisions within the same city can have different zoning regulations.
You should also check to see if there are any restrictions recorded against
your property that affect only your area. Conditions, covenants, and restrictions
(CC&Rs) may include references to design elements as well as setbacks.
In some areas there are limits on styles and colors, allowable roofing
products, and the like. These are rules that were established by the developer
to help maintain the quality of the subdivision, and should prevent you
or your neighbors from building an inappropriate or unsightly addition.
Easements are recorded restrictions
to your right to use your property, such as utility easements. These allow
for the current or future use of your property by others, and may prevent
you from building in the area affected by the easement. For example, there
may be an easement for the electrical service from the source to your
house (overhead or underground wire). You should be able to look at the
title documents you were given when you purchased the property to see
if there are easements, CC&Rs, or other restrictions to expansion.
Look at the site for clues, such as visible power wires or utility boxes.
Show the easements on your plot plan.
Be aware of the drainage patterns
around your house and keep these areas clear. As you draw your plot plan
to scale, use your measuring tape to locate and accurately show sidewalks,
trees, and setback lines. If you are doing a lot of measuring while you
are planning, it is sometimes helpful to mark spots in your yard after
you have located them. For example, if you have a 30-foot setback from
your back property line to the closest structure, measure 30 feet and
mark it with a small stake or a handful or flour. The distance between
the mark and your existing house is the space that is available for your
room addition. Stand in the yard and visualize the new structure in place.
How will the addition affect the view from other windows? The shape of
the yard? |
Floor
Plan |
The
floor plan shows a bird's-eye view of your addition or change. Whether you
are moving walls, repositioning appliances, or adding living space, you
will need to show the location and proportion of the room. Measure existing
rooms and compare them with what you are drawing. If you are redesigning
your kitchen, allow enough space for the refrigerator door to swing open.
A typical interior wall is nearly five inches thick, so allow for the thickness
of the wall in your drawing. For example, an outside dimension of 40 feet
with a couple of perpendicular interior walls loses almost two feet of usable
space inside, leaving only 38 feet of wall space.
There are a few symbols for
locating details on a floor plan that will help your sketch look more
professional, even if you wind up having someone else complete the drawings
later. You can make notes on the plans, sometimes using an arrow to show
where the note applies, but you will need specs to go with your plans
for most larger jobs. Identify rooms on the plans so the specs can refer
to the right place (e.g.
Bedroom No. 3). Show door and window sizes, and be sure appliances, beds,
dressers, etc. are scaled correctly so that they will fit in the finished
space.
If you have a computer it
may be worth investing in software that creates basic designs for construction.
Professionals use CAD (computer-assisted design) programs that are complex
and sophisticated, but there are some programs available that are intended
for home use. Some of these programs will allow you to view your plan
in 3D after you have created it in 2D. You may be able to view this type
of result at a design center, or your contractor may use such a program.
They are often used to design kitchens, where seeing the elevations is
especially important. |
Elevations |
Exterior elevations show the
outside of the structure as if you were standing and looking straight
at it. They do not show perspectives, but they are to scale. You should
know what your roof line will look like, and where the windows will be
placed relative to the doors, corners, etc.
Interior elevations are usually
made to show cabinet details, but are not necessary for standard rooms.
Details for interior or exterior locations may be drawn for any unusual
construction. Some kitchen cabinet suppliers have computer programs that
show elevations for the cabinets you are considering. This can help you
decide where to put appliances, drawers, etc. Be sure to work with your
contractor before committing to a final cabinet arrangement. Sometimes
the need to show detail requires a "section," which is a cross-section
of anything from a wall assembly to a whole room. They are often used
to provide detail for the actual construction process. |
Other
details |
For
a large project such as a room addition you will need a foundation plan,
a roof plan, and possibly specialty details such as an electrical plan,
framing plan, etc. If you are considering such a project you will probably
need the help of a design professional, but your preliminary sketches will
save time and money if they help convey your ideas to the designer.
Architectural renderings show
the overall impression the changes will make. They usually show perspective,
colors, and some details such as landscaping (e.g. mature trees) that
may not be part of the final job. The perspective shown on the rendering
may not be possible to see in real life, if you can't actually get far
enough away from the structure to see it the way it is shown in the drawing.
Such renderings are often used to "sell" a project, especially
in commercial projects. It is not usually necessary for a conventional
residential remodel, but could be worthwhile for a large and complex project.
|
Specifications |
The
specs add information that may be missing from the plans, such as notes
about colors, finishes, model numbers, etc. Some information can be listed
in charts or tables, such as the window schedule, door schedule, or hardware
schedule. In other cases, a narrative style can be used.
In many cases specs will be
all you need for the job. If you are not making structural changes, a
written description should be sufficient. Sometimes a simple drawing can
be included in the specs, using letter-sized paper. This can help clarify
a detail without the need for blueprints, rolls, or other awkward sizes.
Keeping specs in an 8 1/2 x 11-inch format will allow you to use a photocopier
for your duplication needs, which is especially helpful as you work your
way through the planning process. You will change your mind often before
you settle on a final version, and making copies can be a frequent chore
at this stage.
Chapter 4 details the "sixteen
categories" used by the Construction Specification Institute, and
this is one way to organize your specs. You can also describe what you
want room by room, especially when you are not changing the floor plan.
The important thing to remember is that your plans and specs determine
what you will get for your job. Someone will decide which range to install,
or what pattern the bathroom floor covering will have, or what color the
room will be painted. It is important to make these decisions before the
job starts, so the contractor can keep working even if you are not home
to answer questions. Keeping changes to a minimum will help keep the job
on schedule and the price from going up. |
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© 1997,
2017
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