Do I need an architect to do an extension?

For a full planning application you will need professional architecture drawings, so the answer would be Yes. Although Permitted Development applications require a sketch and letter of intent, an architecture drawing is better because from a sketch your builder could go over by 5cm, thus risking an enforcement.
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Can I draw my own plans for an extension?

By extending your home the possibilities are endless, many expansions don't require building regulations approval or planning permission if they fall under your 'Permitted Development' rights. However, in order to carry an extension out an architectural drawing will be needed for your new extensions.
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Do you really need an architect?

While architectural services are certainly necessary when designing a new skyscraper or a massive commercial building, most residential homes do not require the hiring of an architect. A 2015 survey found that only about 10 percent of homeowners hired an architect during new builds or remodels.
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How much does an architect cost for an extension UK?

On average, a traditional practice will charge between 5% - 10%. For example, let's say you're building a classic rear extension in London and it's expected your project will cost around £75,000 overall. If you're using a traditional practice, you'll need to budget between £3750 and £7500 for your architect.
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What drawings do I need for an extension?

Existing drawings
  • Design floor plans. ...
  • Elevations. ...
  • Structural drawings. ...
  • Electrical drawings. ...
  • Plumbing and sanitary drawings. ...
  • They aid the success of a project. ...
  • They are necessary for planning permission. ...
  • Some are legally required.
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What to consider when building an extension. Do you need an Architect? | RIBA Ask An Architect



What is the first thing to do when planning an extension?

If you're planning on building a large extension then it will, more than likely, need planning permission and you will need to submit an application. It's wise to engage with your local authority early on and research local planning policies to know what's likely to get approved before you submit an application.
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Do I need a builder or an architect?

Many experienced builders will offer specialist one-stop shops for 'standard-style' extensions and take care of all the planning, drawing and building regulations. If you want something more bespoke or you are not quite sure how an extension would look, then an architect is often the best person to give you ideas.
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How much does it cost for architect to draw up plans?

As a rule of thumb, you can expect to pay your architect between 8 and 15% of the construction cost for their 'full services'; this breaks down as 35% up to planning, 35% up to tender, and 30% during construction, as the illustrated example below aims to demonstrate.
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Is an architect worth the money?

If you are in need of an architectural design and want to make sure your house is designed reflective of your personal desires, then hiring an architect will be worth your time and money. You'll get exactly what you want. Licensed architects follow their own specific design process.
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How long does a house extension take to build?

For a relatively simple, three metre, single rear extension, construction time should be around three to four months. For a larger or double height rear extension it may be more like six months.
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Can I do my own architectural drawings?

Like architects, architectural designers (sometimes just called designers) have studied and practiced architectural design—some for many years—but are not licensed. They may work on their own or in association with a licensed architect.
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How much does it cost to hire an architect to design a house?

The project cost includes structural building construction cost, and not the interior design and finishing cost. So, if you are building a duplex house of around 1500 sq ft, and the cost of construction is around 150000, then the architectural service fees can range between Rs. 60000 – Rs. 900000.
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Can a builder draw plans?

Some companies do offer that service so they'll get the drawings and put in for planning permission if it's required for you but the majority of the time you'd do this yourself then once you've got them in place your builder can use the drawings / plans you've provided to price the job.
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Do I need a quantity surveyor for my extension?

It is not necessary to use a QS on every building project. Larger-scale projects will naturally have higher cost risks and using a QS would be the more sensible option, to provide the complex knowledge required and professional management of the tender and construction process, through to the final account.
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Who can design my extension?

An architect will help you in the planning stages and assist you in conceptualising the extension by considering interior design as well as the exterior. A quality architect will recommend building materials and will consider the use of light and space to develop an extension to enhance the quality of your life.
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What size extension can I build without planning permission?

The recent relaxation of permitted developments means that homeowners are now able to add extensions without needing planning permissions. You can add a home extension or conservatory up to six metres, or eight metres if your home is detached, without needing to apply for planning permission.
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Can I design my own house without an architect?

You can use either an architect or a building designer to design your home. You can choose someone with their own practice, or your builder may have a designer on staff. Your chosen designer should work with you to develop a design that suits both your lifestyle and your budget.
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Can architects save you money?

This is where hiring an Architect can really add value to your project and save you money. A professionally and thoughtfully designed project will be able to save you money on your future running costs. In the long run, this could turn into a significant saving as it will reduce your energy bills.
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Why are architects so expensive?

Architects are trained in environmental sustainability, artistic design, structural safety and code enforcement to name a few things. Services you may higher a firm for that require these skills include consultations, entitlement, design layouts, structural engineering, 3D design, etc.
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What to Know Before Hiring an architect?

10 Things You Need To Know Before Hiring An Architect
  • 1) Understanding the Experts. ...
  • 2) Take Timeline Into Consideration. ...
  • 3) Balance The Budget Beforehand. ...
  • 4) Learn From The Long Term. ...
  • 5) Ask Around For A Great Architect. ...
  • 6) Sometimes It Takes A Team. ...
  • 7) It Will Get Messy. ...
  • 8) Change You Can Count On.
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Do you need an architect for planning permission?

You are neither required by law to have an architect submit your planning application or design your home. In fact, anyone can put together a set of floorplans.
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How do I choose an architect for an extension UK?

The ideal process for choosing an architect is in done across a handful of steps: Give each architect a brief of the work you want done, a rough budget and ask them if it is the sort of work they do, and whether they are available to do it (the good architects are often the least available).
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Do I need an architect for a side return extension?

Experts at Resi say, 'For all large scale home improvement projects, we always recommend you bring an architect on board. Many people baulk at this extra expense, but the benefits of this professional, we believe, make them a great investment.
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How much does a house extension cost?

As a rule of thumb, building a home extension in London – just the shell – is going to cost you at least £2,000 per square metre. So, the cost of a 20 sqm extension would start from £40,000 (not including VAT).
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What comes first planning permission or architect?

For most of the projects we work on, planning permission is the necessary first step. That doesn't mean, however, that our architectural team ignores national building regulations during this stage of our work.
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