How much will a home extension cost me?

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How much will a home extension cost me?

Lexi Hughes Lexi Hughes
Ground Floor Extension, Drury Rd โดย London Building Renovation คลาสสิค
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As  homeowners, we love our home and would hate the idea of moving because we have outgrown our space. But at some point, we realize that our house might be too small for a growing family or someone who wants space to work from home or peruse a hobby. In that case, you might be surprised to find that a home extension is a good alternative instead of looking for a new house.

But how much is an extension for a typical home today? We put together examples of what an average house extension costs, including an extension costs per sqm, to help you with your planning! 

1. A single-storey extension

Ground Floor Extension, Drury Rd โดย London Building Renovation คลาสสิค
London Building Renovation

Ground Floor Extension, Drury Rd

London Building Renovation

For this example, the extension costs per sqm is MYR 6,500 – 8,500, which is a relative estimate for a house extension cost today.  This reflects the current prices. But this could vary depending on your location of the house. While prices in small towns can be quiet modest, in large cities they can be higher.  In that case, a size of 4 by 5 meters extension could rise up to about MYR 8,900 – 11,338 per m²,  plus the additional costs for professional fees, including architect costs, location, building registration, etc.

2. A double-storey extension

The Cube, Winchester โดย Adam Knibb Architects โมเดิร์น
Adam Knibb Architects

The Cube, Winchester

Adam Knibb Architects

The same calculation can also be used for second storey extensions.  You should consider an additional 50% for a double-storey extension, which would bring you to MYR 135,000 +50% =  MYR 165,000. The extension costs is also depending on how complicated the extension would be, which can be impacted by the reconstruction of existing rooms, renovations to the foundation, etc. 

3. Extensions to a kitchen or bathroom

Bright, clean, contemporary โดย homify โมเดิร์น
homify

Bright, clean, contemporary

homify

When extending or renovating a kitchen or bathroom, more extension costs should be considered. On average, we estimate that a basic bathroom extension (nothing fancy) will cost around MYR 28,000. For a small kitchen, the renovations or extension could cost roughly MYR 35,000 - again, this will differ depending on the style and appliances used.

4. Details like finishes and fittings

Pebbles โดย Pixers โมเดิร์น
Pixers

Pebbles

Pixers

When you're extending or renovating your home, you of course want to add some beautiful touches to enhance the overall design. For example updating the lighting, flooring, and appliances is important in achieving a gorgeous look. We like simple, and structural finishes, especially in the kitchen where cleaning and sanitation is easier to complete. 

5. What about unforeseen difficult conditions?

ทันสมัย  โดย ArchitectureLIVE, โมเดิร์น
ArchitectureLIVE

Existing 1900s Family Home in Hindhead, Surrey

ArchitectureLIVE

unfortunately, not every home extension will go smoothly. This will also impact house extension costs and should be considered in the timing as well as financial planning:

• Every home extension needs a solid foundation. Your soil type and ground conditions will need to be tested in order to estimate the safety of your extension.

• Is your home easy to access? If it's difficult to reach for workers or with heavy equipment, make sure you take that into consideration in your budget and planning. 

• Aside from the extension, will existing features like the roof or windows need to be replaced?

• Check your piping, gas and drainage systems, will that need to be replaced?

6. Location, location, location

Forest View โดย Clear Architects โมเดิร์น
Clear Architects

Forest View

Clear Architects

The location of your house will also play an important part in house extension costs. For example you can expect to pay more in extension costs if you’re located in the more populated, desirable area, like larger cities.

7. Materials and construction techniques

The type of construction equipment and materials used can also play a huge role extension costs. Make sure you take into consideration the type/ quality of materials you use, like wood or stone. This will be crucial when you calculate extension costs per sqm. 

8. How can you manage project costs?

Modern Garden Room โดย ROCOCO โมเดิร์น
ROCOCO

Modern Garden Room

ROCOCO

The best way to manage the project in your time frame is by consulting a professional architect. They have the right experience and can help identify where hidden fees can lie in home extension costs. For example, thorough architects will make sure they get 3-5 quotes from various craftsman to compare costs and plans. To avoid nasty surprises, it makes sense to set up building contracts between craftsmen and builders. The architect also helps and advises – including the building approval at the end of the implementation. 

For some inspiration, we recommend: The 7 rooms to renovate to boost your home's value.

โดย Casas inHAUS โมเดิร์น

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