House Extension in city

Find House Extension Prices in city

Home > Extensions & Conversions Projects > House extensions > Porthmadog

House Extension in city

House extension features a wide range of benefits which makes it very easy to see why the extension could be a fantastic uptick in the potential rate of your home in terms of sales. So if you're seeking to build a brand-new house extension however still not convinced concerning the job, we're right here to aid you. Being fully aware any house building and construction work is usually a heavy financial investment, there's a big requirement to be set on your choice before setting up the start of any job. So are house extensions worth it? Below are some of the leading advantages offered by house extensions to aid you decide if it's the most ideal course for you.

 

What's Associated with Adding an Extension?

The steps will vary relying on the range of your extension, but you can expect some, otherwise all, of the below to be entailed when including an expansion to your house:

 

  1. Obtaining Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if relevant) to see to it you can do what you want to do.
  3. Enlisting an architect  to draw up the plans, considering your intended use ( kitchen area, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance supplier to allow them know of the planned job ahead of it beginning.
  6. Acquiring car parking allows if needed for your specialists to guarantee they have easy accessibility to your residential building.
  7. Seeing to it all planned work falls within permitted allowables.
  8. Cleaning the space and also digging deep into if needed, including the elimination of trees.
  9. Structure job can start.

 

What is the expense of a house extension in city?

If you're thinking about adding a two storey house extension, then establishing a budget for this task would certainly be a fantastic method to start. Similar to a back extension, a two storey extension usually leaves the remainder of the building requiring some job and also, due to its dimension, this might imply the re-development of the whole house - which is why they can be extremely costly. Some of the other influencing aspects that can have large effect on a two floor house extension price consists of: your area, the dimension of the build, intricacy of the layout (anything beyond the basic construct will typically require more experience as well as time), the glazing to be integrated (the much more the glass used in the project, the a lot more the product price), in addition to the team made use of.

Average House extensions cost in Porthmadog

The regular cost of House extensions are £50,000 in Porthmadog. 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 2025

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 Porthmadog, as reported by local LeadsDoWork members.

House extensions installation cost in Porthmadog 2025

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

House extensions searches in June 2025

House extensions Projects in Porthmadog in May 2025

276

Requests for quotations in Porthmadog in May 2025

3

Requests for House extensions quotations in Porthmadog in May 2025. 0% change from April 2025.

10

Requests for House extensions quotations in Gwynedd in May 2025. 0% change from April 2025.

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

House extensions searches in cities and towns near Porthmadog May 2025

15

Requests for quotations in Llandudno in May 2025

11

Requests for quotations in Conwy in May 2025

10

Requests for quotations in Caernarfon in May 2025

10

Requests for quotations in Colwyn Bay in May 2025

10

Requests for quotations in Wrexham in May 2025

Porthmadog

Porthmadog known locally as "Port", is a small Welsh seaside town and former neighborhood, currently in the community of Penrhyndeudraeth in the Eifionydd location of Gwynedd. It has been so led to formally considering that 1974. Prior to 1972 in the administrative area of Caernarfonshire, it lies 5 miles (8 km) east of Criccieth, 11 miles (18 kilometres) south-west of Blaenau Ffestiniog, 25 miles (40 kilometres) north of Dolgellau as well as 20 miles (32 km) south of Caernarfon. It had a population of 4,185 (2011 census). It developed in the 19th century as a port exporting slate to England as well as elsewhere, but since the decline of the market it has ended up being a shopping center and also traveler destination. It has very easy accessibility to Snowdonia National Park as well as is the terminus of the Ffestiniog Railway. The 1987 National Eisteddfod was held in Porthmadog. It includes the nearby towns of Borth-y-Gest, Morfa Bychan and Tremadog.

Looking for House extensions in Porthmadog?

Get free quotes from local builders

Get free quotes

Similar Customer Enquiries for House extensions in Porthmadog

26 Jul

House Extensions

Porthmadog - LL49

Enquiry from: Richard B

Start Date: Immediate

Small extension for utility room

Post a similar request >

22 May

House Extensions

Pwllheli - LL53

Enquiry from: Michal S

Start Date: Immediate

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

Post a similar request >

07 Mar

House Extensions

Barmouth - LL42

Enquiry from: Oliver O

Start Date: 1 to 3 months

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...

Post a similar request >

25 Jan

House Extensions

Pwllheli - LL53

Enquiry from: Iain H

Start Date: Immediate

customer in the pwllheli 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 p...

Post a similar request >

02 Apr

House Extensions

Dyffryn Ardudwy - LL44

Enquiry from: Ron G

Start Date: 1 to 3 months

customer requested quotes for house extension from a builder around dyffryn ardudwy. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the informa...

Post a similar request >

16 Mar

House Extensions

Pwllheli - LL53

Enquiry from: Mr J

Start Date: Immediate

are you the property owner: owner of the property property type: detached other forms: house extension agreed to receive quotes for selected products: yes please call to appoint

Post a similar request >

01 Mar

House Extensions

Pwllheli - LL53

Enquiry from: Mr J

Start Date: Immediate

are you the property owner: owner of the property property type: detached other forms: house extension agreed to receive quotes for selected products: yes please call to appoint

Post a similar request >

23 Feb

House Extensions

Barmouth - LL42

Enquiry from: Mark W

Start Date: Immediate

are you the property owner: owner of the property property type: detached property age: 1900-1930 how many bedrooms: 5+ rooms roof height: 3rd floor+ is your roof pitched or flat: pitched do you requ...

Post a similar request >

12 Jun

House Extensions

Pwllheli - LL53

Enquiry from: Marcia P

Start Date: Immediate

New door bolt and foot bolt photo available .please send email address.

Post a similar request >

04 Jan

House Extensions

Penrhyndeudraeth - LL48

Enquiry from: Iwan J

Start Date: Immediate

Single storey flat roof extension - extending onto an existing flat roof extension. Existing outhouse to be demolished. Size of build 3300mm along existing building by 3800mm. To include shower room ...

Post a similar request >

03 Nov

House Extensions

Pwllheli - LL53

Enquiry from: Gwenllian R

Start Date: Immediate

Home Owner Supplied and Fitted Call to Appoint

Post a similar request >

13 Sep

House Extensions

Caernarfon - LL54

Enquiry from: Mr P

Start Date: 1 to 3 months

double storey rear extension - to same line as 2 New Street Trefor. Are you the property owner: Owner of the property Property Type: Terrace Do you have planning permission: No Do you have plans drawn...

Post a similar request >

20 May

House Extensions

Pwllheli - LL53

Enquiry from: Marian H

Start Date: Immediate

Plans for extending an old kitchen. architect needed with clear plans/structural engineer needed and a builder. Are you the property owner: Owner of the property Looking For: Single storey extension D...

Post a similar request >

23 Oct

House Extensions

Caernarfon - LL55

Enquiry from: Joanna C

Start Date: 1 to 3 months

2 storey side extension; kitchen/diner/utility to ground floor, and bedroom with en-suite to 1st floor. Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Do...

Post a similar request >

20 Apr

House Extensions

Garndolbenmaen - LL51

Enquiry from: Sioned J

Start Date: Immediate

Small extension to rear of house (to extend present kitchen) Roughly between 4 to 6ft by 8ft. Looking For: Single storey extension Do you have planning permission: No Property Type: Terrace

Post a similar request >

30 Mar

House Extensions

Caernarfon - LL55

Enquiry from: Sharon H

Start Date: Immediate

A two storey front extension on a very old barn Are you the property owner: Owner of the property Property Type: Detached Looking For: Double storey extension Do you have planning permission: Ye...

Post a similar request >

03 Feb

House Extensions

Pwllheli - LL53

Enquiry from: Elin M

Start Date: Immediate

Home owner Kitchen extension with bedroom above 20`x20`.Slate roof and one wall mainly glazed joining on to existing house. Call to appoint

Post a similar request >

Local & reliable builders near me

Tell us about your house extensions project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Porthmadog

Get free, no-obligation local house extensions quotes from 4 verified builders working in Porthmadog.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love LeadsDoWork it's a big part of my …

Love LeadsDoWork it's a big part of my Business I would recommend to anyone

FAQs

how big can my house extension be?

The holy grail of home extensions is basically the need for additional space for living as well as leisure. However, before commencing your home extension project, you’d probably want to know just how big your new building can be. In this article, you’ll find the answer to this question which is also frequently asked by many other home or property owners in the UK.

Besides your budget, there are two other major influencing factors that can determine just how much extra room that can be added. These factors include whether you wish to carry out the extension project under Permitted Development rights which is usually for a smaller project or you’d prefer to opt for a larger project which is covered by Planning Permission.

Apart from the limitations in the size of an extension under Permitted Development, the extensions are also a lot more affordable and consumes less time when compared to the extensions under planning permission. So what exactly is the size limit for an extension under Permitted Development and the ones under Planning Permission?

For a single storey extension, the maximum size that can be constructed without having to submit an application for Planning Permission includes:

• An extension should have a maximum length of 6m, if you reside in a terraced home or a semi-detached property.

• Extensions for detached properties can have a maximum length of 8m.

• The extension built must not go beyond half your garden’s area.

• The extension should have a maximum height of 4 metres, but in the event whereby the extension is situated within 2 metres of the boundary of your property, it should not exceed a height of 3 metres.

• The extension should not be higher than the highest part of the existing house’s roof.

Do I need my neighbours’ permission for an extension?

Well the reality is, sometimes, neighbours just don’t get along. With several individuals living in close proximity, it’s little surprise they tend to get on one another’s nerves from time to time. However, there’s a difference between having a tiff and being able to transform your house the way you want without having to obtain your neighbour’s approval.

The short and simple answer to this question is, not necessarily. However, you must first educate yourself by thinking about your extension and how it affects the houses around you. We’d strongly recommend you talk proposals through with your neighbour so as to avoid possible conflicts later. There are a number of reasons why your neighbour can protest to your new home extension plans. Let’s take a look!

 

  • In the event whereby your new extension is blocking their view or providing an unwanted shade on their property. Here, they have a legitimate reason to protest as no one would want their once sunny garden suddenly covered or plummet into shade.
  • In the event where it leads to a loss of privacy. For instance, if your new extension possesses a window which overlooks the neighbour’s property in any way. This is likely to be taken as an invasion of privacy and that has a little to no chance of being a welcomed idea.
  • If it’s a major project and going to take a lot of weeks before completion. The noise generated, especially when your neighbours are enjoying your summer holidays or weekends, can make their gardens not as relaxing as it used to be.
What types of extension are there?

There are many different types of extension. For example, you could install an orangery, flat or pitched roof extension, over-structure extension, single or double storey extension or a glass box extension. Which one of these is most suitable will depend on your existing property.

how much value does an extension add to your house?

Are you interested in extending your home to create more living space? If yes, then you’d probably want to know how much value it can add to your property in order to compare the building costs to the potential value gain. Well, as long as you know what you’re doing, your house doesn’t necessarily have to be a money pit. So what are your options when talking about home extensions and what’s the associated value to be gained?

• Bathroom Extensions

Although you should have it in mind that bathroom extensions isn’t usually that cheap, but once done, it can increase the value of a standard UK house within the range of £12,000 to £15,000. Meanwhile the finishing cost of a bathroom can range from £2,500 to £7,000.

• Single or Double Storey Extensions

Single storey extensions are always huge when it comes to increasing the value of your home - giving about 4 to 7 percent increase. If it goes that far, then literally nothing beats a full spectrum, double storey extension which can give up to 11 percent increase in the value of a property - equalling about a whooping £33,000 for a standard home in the UK.

• Conservatory Extension

With conservatories becoming more and more popular in the UK due to the weather conditions, several buyers are now including it’s availability as part of the criteria for purchasing a house. Wonder why? This is simply because everyone wants to enjoy their garden all throughout the year. As a result of this high demand, adding this type of extension to your house can go a long way to increase it’s value. However, it’s very important to incorporate high quality materials during construction. With glass conservatories offering, on the average, up to £5,000 increase in value, the cheaper PVC alternative offers much less value and can also deter potential buyers.

Placholder Image

Other Top Projects in Porthmadog

Customer Reviews

Overall rating:


Porthmadog House extensions installers are rated 4.9 out of 5 based on 1 reviews of 10 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with House extensions projects that have been connected with House extensions pros to help them. All House extensions contractors All Porthmadog House extensions contractors

Are you a builder in Porthmadog?

We can help you get more house extensions work with our qualified job leads and boost your business.

Join today