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costs you should consider including
extension groundwork costs, architect
costs, regulation costs, and permissions
costs. If you’re thinking of hiring an
architect to plan and design your new
extension, you may find that the cost is
around £18 to £30 per hour. Regulation
and planning costs are also among the
most important things to keep in mind
when planning an addition to your
house.
You’ll probably need planning
permission if you’re considering a
major project. But, don’t forget to
check with your local council and find
whether you need one depending
on the type of your extension. When
it comes to regulations, remember
various elements must be signed off
by a professional as proof that your
property is safe including flooring,
ventilation, internal and external walls,
and foundations.
How much do the stages of an
extension cost?
There are a couple of stages involved in
building an extension to your house, and
each one has individual costs that you
need to know when setting your budget.
First of all, the building regulations and
designs. As we mentioned, you have
to find out whether you need planning
permission, and if your plans don’t
adhere to the conditions, know that you
will need to pay around £200 to apply
for your extension to be approved.
Before you start building, the ground
also has to be fully prepared, so this
involves excavation which can cost
between £30 and £50 per cubic meter.
You might also consider removing
pipework and installing drainage
which will ensure that your extension is
protected against damages and it may
cost around £700 to £10.000. Finishing
touches like fixtures and fittings may
cost around £1000 to £7000, and you
may also consider costs for windows
and doors.
Types of house extension
There are a few different styles of home
extension including rear extensions,
side return extensions, double-story
extensions, wrap-around extensions,
and dormer extensions. Rear
extensions are usually placed at the
back of your house, extending onto the
garden or patio, and they can usually
be done without planning permission.
The combination of rear and side return
extension means moving outer walls
in two directions which is great for
extending the living space creating an
opportunity to expand your kitchen or
dining area.
Double-storey extensions mean
extending over two floors by using
the rear, side return, or wrap-around
extension. One of the advantages
would be that you will get double the
space but not double the cost. If you
have no use of your attic, then you
should consider a dormer extension. It
removes the pitch of the roof and will
create a flat roof so you can get space
which would be ideal for creating new
rooms.
Final thoughts
Planning to add an extension to your
house can be daunting, so you need
to plan your budget well, and don’t
forget to ask important questions about
your build before you start. House
extensions are excellent since they
boost your home’s space and value,
and can be so satisfying and useful.
So, don’t forget to write down your
plan, think carefully about what you
want to include, and consult with the
right contractors and designers.
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