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House Extension in city

House extension comes with a large range of benefits which makes it simple to see why the extension could be a fantastic uptick in the potential cost of your residential or commercial property in terms of sales. So if you're aiming to construct a brand-new house extension but still not encouraged regarding the project, we're here to help you. Being completely mindful any type of home building and construction job is typically a hefty investment, there's a huge need to be set on your choice before scheduling the start of any kind of job. So are house extensions worth it? Below are some of the top advantages provided by house extensions to assist you make a decision if it's the most appropriate course for you.

 

What's Involved in Adding an Extension?

The steps will certainly differ relying on the extent of your extension, but you can anticipate some, if not all, of the listed below to be entailed when adding an extension to your house:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if suitable) to make certain you can do what you intend to do.
  3. Getting an architect  to draw up the plans, considering your intended use ( cooking area, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance supplier to allow them know of the prepared work ahead of it beginning.
  6. Acquiring parking allows if needed for your professionals to guarantee they have easy accessibility to your property.
  7. Seeing to it all planned work drops within permitted allowables.
  8. Cleaning the space and also excavating if essential, consisting of the removal of trees.
  9. Structure work can start.

 

What is the price of a house extension in city?

If you're thinking about adding a 2 floor house extension, then establishing a allocate this task would certainly be a great method to get started. Similar to a back extension, a two floor extension normally leaves the remainder of the structure requiring some job and, because of its size, this might indicate the re-development of the whole house - which is why they can be extremely costly. A few of the various other affecting factors that can have huge impact on a two floor house extension cost consists of: your area, the size of the build, complexity of the layout (anything beyond the standard develop will typically need even more competence and also time), the glazing to be incorporated (the extra the glass made use of in the job, the a lot more the material cost), in addition to the group utilized.

Average House extensions cost in Renfrewshire

The regular cost of House extensions are £50,000 in Renfrewshire. Costs vary based upon the materials and the company picked. The upper price range can be as high as £68,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£42,000

Avg. price

Avg. price
£50,000

Avg. price high

Avg. price high
£68,000

£68500

£51375

£34250

£17125

£0

Prices based on actual House extensions costs for Renfrewshire, as reported by local LeadsDoWork members.

House extensions installation cost in Renfrewshire 2026

Labour cost £27,000
Material cost £10,500
Waste removal £2,500
Time frame: 10-14 weeks

House extensions searches in June 2026

House extensions Projects in Renfrewshire in May 2026

2,412

Requests for quotations in Renfrewshire in May 2026

30

Requests for House extensions quotations in Renfrewshire in May 2026. 50% change from April 2026.

574

Requests for House extensions quotations in Scotland in May 2026. -9% change from April 2026.

Source: Numbers calculated based on the search volumes in major search engines

House extensions searches in cities and towns near Renfrewshire May 2026

10

Requests for quotations in Paisley in May 2026

10

Requests for quotations in Johnstone in May 2026

10

Requests for quotations in Greenock in May 2026

4

Requests for quotations in Erskine in May 2026

4

Requests for quotations in Port Glasgow in May 2026

Renfrewshire

Renfrewshire is one of Scotland's 32 council areas and found in the west central lowlands of the country. With a population of more than 170,000, which ranks the region as the tenth largest for people, it only has a density of 650/km squared. Renfrewshire edges southwest Glasgow and it's around the south bank of the River Clyde. With a variety of contemporary and also standard houses, there are many of property enhancement needs needed throughout the year. For your projects, make certain to find reputable companies in Renfrewshire to get the right price each and every time.

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House extensions pros in Renfrewshire

CMK Home Extensions LTD

2 review(s)
Based: in Glasgow, G61 3NU

The alternative to traditional domestic builders CMK Home Extensions bring a modern, professional approach to all your home improvement and extension needs. Whether its a new open plan living space, kitchen diner, family room or sun room we can trans...

Latest review

M M., G12
30th July 2016
4

House Extensions in Glasgow

This company has been very pro active in discussing the work to be done whilst waiting for my building warrant.

Similar Customer Enquiries for House extensions in Renfrewshire

18 Jan

House Extensions

Paisley - PA3

Enquiry from: Sarah P

Start Date: Immediate

customer in paisley area has requested that we arrange quotes for their house extension project.they are considering various options and would like to discuss with a builder directly.please call to di...

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05 Oct

House Extensions

Paisley - PA1

Enquiry from: David W

Start Date: Immediate

hi i’m looking for a builder to construct a rear and side extension to my property. the extension will create a living/dining area, a utility and an en-suite. the project will also include the fitti...

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20 Aug

House Extensions

Johnstone - PA6

Enquiry from: Usha M

Start Date: Immediate

customer in johnstone area has requested that we arrange quotes for their house extension project.mrs are considering various options and would like to discuss with a builder directly.please call to d...

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20 Jan

House Extensions

Paisley - PA1

Enquiry from: Anne M

Start Date: Immediate

customer in paisley areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via email at 20/01/2022 11:55.please call to arrange appoint...

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04 Aug

House Extensions

Paisley - PA2

Enquiry from: Ian M

Start Date: Immediate

customer in the paisley area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the pr...

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07 Jul

House Extensions

Erskine - PA8

Enquiry from: Brian M

Start Date: Immediate

customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

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18 Mar

House Extensions

Paisley - PA1

Enquiry from: Deep K

Start Date: Immediate

Rear extension at the back, rear wall to be knocked down and put steel beams in place. Also need non supportive wall between kitchen and dining room knocked out.

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24 Aug

House Extensions

Bridge of Weir - PA11

Enquiry from: James F

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: no other forms: kitchen design & installation, house extension agreed to receive quote...

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10 Aug

House Extensions

Paisley - PA2

Enquiry from: Bobbi J

Start Date: Immediate

i have a brick built porch with a flat roof. the person who built it put the drain pipe on the inside of the porch and it's now leaking. i am looking for one wall to be partially taken down and replac...

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04 Aug

House Extensions

Paisley - PA2

Enquiry from: Jean S

Start Date: Less than one month

pass: 4 - call any-time new build or replacement: replacement quote requested on a porch, in pvcu, to be supplied and fitted. are you the property owner: owner of the property do you have plann...

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31 Jul

House Extensions

Paisley - PA3

Enquiry from: Sarah P

Start Date: Immediate

2 storey side extension for an end terrace house are you the property owner: tenant (with permission) are you the property owner: owner of the property looking for: double storey extension do you have...

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25 May

House Extensions

Paisley - PA1

Enquiry from: Jennifer J

Start Date: Immediate

im wanting to build and outbuilding to be used as an home office it will be 7 x 4 can you possible provide a quotation

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18 Jan

House Extensions

Renfrew - PA4

Enquiry from: Pauline C

Start Date: Immediate

Replace conservatory doors

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05 Aug

House Extensions

Paisley - PA1

Enquiry from: Peter C

Start Date: Immediate

Glass extension with the removal of 2 walls to make living room and kitchen open plan Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Ar...

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22 May

House Extensions

Greenock - PA16

Enquiry from: Brian D

Start Date: Immediate

Looking at two storey extension 3x5m. With bathroom and dining room downstairs and bedroom upstairs.

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08 Jun

House Extensions

Paisley - PA3

Enquiry from: Patricia B

Start Date: 1 to 3 months

approx 3m x 4m single storey extension to mid terrace house. with small wc. Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the...

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07 Jun

House Extensions

Renfrew - PA4

Enquiry from: Una K

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: No Do you require Pl...

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05 Jun

House Extensions

Greenock - PA16

Enquiry from: Stephanie O

Start Date: 1 to 3 months

would require a double storey extension 4m x 5.5m. No kitchen or bathrooms are being installed. Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Double store...

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22 May

House Extensions

Port Glasgow - PA14

Enquiry from: George M

Start Date: Immediate

Kitchen extended into a current conservatory but taking that away.

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16 May

House Extensions

Bishopton - PA7

Enquiry from: David K

Start Date: Immediate

Side extension to semi detached house. 6m by 3.5m to include a small office, shower room and play room. Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Sing...

Post a similar request >

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FAQs

when do you need planning permission for a house extension?

If you’re planning on adding a house extension to your property, you’d probably be worried about whether or not your proposed extension would require a planing permission. Well, it may be relieving to know that not every house extension project would require a formal consent, and in fact, several extensions are covered by the permitted development rights. Not only can this save you a considerable amount of time especially at the project’s planning phase, but it’ll also save you money on the application fee. In the UK, single storey extensions to the house’s rear can be 3 metres deep for both semi detached houses and terraces or 8 metres deep for detached homes.

So how do you know when you’d require a planning permission for your home extension? Well, if your extension plan fits these criteria explained below, then your project is most likely going to be allowable as a permitted development.

• Extensions, which includes previous additions, must not go beyond half of the original house’s total surrounding land area.

• The main elevation, or side elevation where it fronts the highway, must not be extended forward.

• For single storeys, the rear additions must not extend more than the original house’s rear by more than 3 metres in both semi attached homes and terraces (4 metres for detached houses).

• Extensions to the side must be a single storey with a height not exceeding 4 metres and not going beyond 50% of the original house’s width.

• Extensions hat within 2 metres of a boundary should have a eaves height not more than 3 metres.

• Multi storey addition must not extend beyond the original house’s rear wall by a maximum of 3 metres or 7 metres of the boundary opposite the rear wall.

• Permitted development rights do not apply in listed buildings or designated areas.

Can an extension add value to my home?

Yes. Most extensions will add substantial value to your home, and you may find that the extension adds more value than it cost. However, it’s important to be sure that the home remains balanced. Extending your garage and leaving your property with no parking spaces, for example, may impact your ability to sell.

how long do house extensions take?

If you’re about to start your house extension project and wondering how long it’ll take to complete, you’re not alone! This is one of the most common questions that’s asked by homeowners in the UK and across the globe. However, there’s no single precise answer for this as there are multiple factors that’ll affect the length of time it’ll take to complete your home extension. These factors include the size of the construction work as well as whether you’re planning to live in the house after completion or otherwise.

For a single extension, the length of time it’ll take to complete the home extension is normally up to 3 months. So let’s break this down:

As you would have expected, the first step to be taken is the preparation of the site. You start by digging out the footing and preparing the foundation which should take about 2 weeks. This is then followed by the damp course installation as well as the fitting of any drains needed around the extension which will also take a further 2 weeks.

The 5th week will be for the construction of the external walls as well as putting the blockwork in place for the provision of the cavity wall insulation. A further 2 weeks after this, will be dedicated to the installation of the roof structure and the internal walls.

It’s at this junction that you’ll call on your weather proof installer to fit in your uPVC windows and doors. Once done, the gas fitters and electricians will have to be on site to connect power to your new extension building. Subsequently, this will be followed by internal wall plastering as well as breaking through your main house. Once the plaster is dried, decorations completed and all the required furniture and units installed, the extension is ready for use.

how to finance a house extension?

Do you want to beautify and increase the value of your home? If yes, a refurb and house extension is definitely a great option to consider. Depending on your home extension project, the value that’ll be added to your home’s resale value varies. However, the cost of completing a house extension project can be huge, so you just might want to consider your financing options. Fortunately, there are various options through which your house extension project can be funded with each having its own pros and cons. Your specific circumstances will determine the one that’s going to work best for you, so let’s take a look at some of the best options to help you fund your project.

• Home Remortgaging

The process whereby a mortgage is transferred from one provider to the other is known as remortgaging. This is usually done to generate funds for a project by entering a more lengthy repayment term commitment when switching. If you want to raise your funds in a quick manner, this process works best.

• Savings

This is a good reason to cultivate a good saving habits. If you’ve been able to save up some mega bucks then you’d probably won’t have to borrow money to finance your house extension.

• Unsecured Loans

If you do not buy into the idea of borrowing more against your property, you may just be able to apply for an unsecured loan especially if you have a good credit record. A secured loan makes use of collaterals like a car or house to serve as a cover for the lender, meanwhile an unsecured loan is based mainly on the credit managing history of the borrower.

• Credit Card

There are some great benefits that comes with financing your small or medium scale extension project with your credit card. Not only does it offer some real lifeline if problems arise during the project, but you can also avoid paying excessive interest on the investment by ensuring your deal has a 0% introductory rate.

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