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House extension comes with a large range of advantages that makes it simple to see why the extension could be a wonderful uptick in the prospective cost of your home in regards to sales. So if you're aiming to build a new residence extension however still not persuaded regarding the task, we're here to aid you. Being completely conscious any type of home building and construction job is normally a heavy financial investment, there's a massive demand to be set on your decision before arranging the beginning of any work. So are house extensions worth it? Below are some of the top advantages used by house extensions to help you decide if it's the most ideal route for you.

 

What's Associated with Building an Extension?

The steps will differ depending on the range of your extension, however you can anticipate some, if not all, of the listed below to be involved when including an expansion to your residence:

 

  1. Obtaining Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Inspecting your leasehold arrangement (if appropriate) to make certain you can do what you wish to do.
  3. Employing an architect  to draw the plans, considering your expected usage ( kitchen area, bathroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy carrier to let them know of the planned work ahead of it beginning.
  6. Obtaining car parking permits if required for your service providers to guarantee they have very easy access to your residential building.
  7. Making certain all planned work drops within allowed allowables.
  8. Cleaning the space as well as digging deep into if required, including the removal of trees.
  9. Structure job can begin.

 

What is the expense of a house extension in city?

If you're taking into consideration adding a 2 floor house extension, then setting a budget for this task would be a fantastic way to begin. Similar to a rear extension, a two floor extension generally leaves the remainder of the structure requiring some job and also, because of its dimension, this might indicate the re-development of the whole house - which is why they can be really expensive. Some of the various other influencing factors that can have large impact on a two floor house extension cost includes: your location, the size of the build, intricacy of the layout (anything beyond the common build will generally call for even more competence and time), the glazing to be incorporated (the much more the glass made use of in the project, the a lot more the product cost), along with the group utilized.

Average House extensions cost in St Neots

The regular cost of House extensions are £41,250 in St Neots. Costs vary based upon the materials and the company picked. The upper price range can be as high as £54,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£33,500

Avg. price

Avg. price
£41,250

Avg. price high

Avg. price high
£54,000

£54500

£40875

£27250

£13625

£0

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

House extensions installation cost in St Neots 2025

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

House extensions searches in April 2025

House extensions Projects in St Neots in March 2025

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Requests for quotations in St Neots in March 2025

St Neots

St Neots serves as a town and civil parish inside the non metropolitan county of Cambridgeshire, England, within the historical county of Huntingdonshire, next to the Bedfordshire county boundary. It sits on the River Great Ouse inside the Huntingdonshire District, 15 miles (24 km) west of Cambridge and 49 miles (79 km) north of central London. St Neots is the leading town in Cambridgeshire (Cambridge and also Peterborough are both cities) with a populace of 30,580.

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Similar Customer Enquiries for House extensions in St Neots

23 Mar

House Extensions

St. Neots - PE19

Enquiry from: Ken C

Start Date: Immediate

rear extension, plans available customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner: owner of the property proper...

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14 Jul

House Extensions

St. Neots - PE19

Enquiry from: Joan V

Start Date: Immediate

remove wide window in lounge and build dining room 2 windows 1 radiator 1 centre light 2 wall lights 4 plugs upstairs remove smaller window to access new bedroom with 1 window 1 double doors to juliet...

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17 Dec

House Extensions

St. Neots - PE19

Enquiry from: Asli H

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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21 Jul

House Extensions

St. Neots - PE19

Enquiry from: Vlad A

Start Date: Immediate

could you please advise on the estimated cost for repair of the following: no flashing at junction of porch roof to main wall and the mortar joint has opened which will allow water into the roof area...

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11 Oct

House Extensions

St. Neots - PE19

Enquiry from: Ken C

Start Date: Immediate

1.5 metres Extension away from the main building. 7.0 metres along the building. Pitched roof. Double storey.

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28 Aug

House Extensions

St. Neots - PE19

Enquiry from: Douglas B

Start Date: Less than one month

A utilty/storage area on the side of my bungalow. Approximate dimensions 3m long 1.7m deep 2.5m high. Customer is currently in the process of looking for quotes to add a Single storey extension to the...

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26 Nov

House Extensions

St. Neots - PE19

Enquiry from: Chrissy B

Start Date: Immediate

A single story extension at the rear of the house that comes within permitted development. 3m x 7m wide, flat roof.

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21 Apr

House Extensions

St. Neots - PE19

Enquiry from: Joan V

Start Date: Less than one month

2 storey extension 8ft x 12ft to make study down stairs and bedroom extension up top no plumbing double doors both rooms Are you the property owner: Owner of the property Property Type: Detached Looki...

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26 Jun

House Extensions

St. Neots - PE19

Enquiry from: Mervyn F

Start Date: Immediate

Single story extension, pitched roof .5.7 mts x 5.6 mts. Planning has been approved. Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Ar...

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09 May

House Extensions

St. Neots - PE19

Enquiry from: Matthew D

Start Date: Immediate

Single storey extension. To create a dining room and extension on to living space. Lighting required and a skylight. Windows for light purposes.

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14 Feb

House Extensions

St. Neots - PE19

Enquiry from: Carole W

Start Date: Immediate

Extend across back of bungalow to incorporate an en-suite wet room from the bedroom, move original bathroom back (to make hall bigger) and extend the kitchen. I believe we can go 4m out without plann...

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13 Jan

House Extensions

St. Neots - PE19

Enquiry from: M

Start Date: Immediate

Home owner Garage Extension Please call to appoint

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08 Dec

House Extensions

St. Neots - PE19

Enquiry from: James C

Start Date: Immediate

2 storey extension ,in place of existing connecting garage

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29 Sep

House Extensions

St. Neots - PE19

Enquiry from: Joseph M

Start Date: 3+ months

Double Garage conversion into dinning area ( 15 sq meters approx.) plus replacement and extension of 1st floor dormer window. Are you the property owner: Owner of the property Property Type: Detach...

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17 Jul

House Extensions

St. Neots - PE19

Enquiry from: Joan V

Start Date: 1 to 3 months

Double storey extension rear of housr lower floor garden room upper floor bedroom no plumbing just basic rooms with electrics and 1 radiator each room. Are you the property owner: Owner of the propert...

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03 May

House Extensions

St. Neots - PE19

Enquiry from: Giselle C

Start Date: Immediate

We are a Grade II listed house, with an ancient monument listed moat at the rear of our property. We are looking at a way to extend at the rear as no work is allowed at the front of the property to a...

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17 Apr

House Extensions

St. Neots - PE19

Enquiry from: G

Start Date: Immediate

Single storey pitched roof extension approx 4m x4m to join up to existing pitched roof extension. Include electrics and plumbing for new kitchen. addition of new internal wall 4m long to extend bathro...

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12 May

House Extensions

St. Neots - PE19

Enquiry from: Angela T

Start Date: 3+ months

Customers own description of work to be carried out: planning permission for extension to bungalow approx 3m x 6m. extension to link to existing lounge with 3 sides. windows and bi fold doors. acce...

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04 Mar

House Extensions

St. Neots - PE19

Enquiry from: D T

Start Date: 3+ months

Single extension to rear of property approximately 3 metres by 10 metres with pitched roof. Middle wall separating kitchen and dining room separate to create breakfast diner area Are you the proper...

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02 Feb

House Extensions

St. Neots - PE19

Enquiry from: Margaret S

Start Date: Immediate

Home Owner Build Quotes Single storey at back on flat plot. One living room and one shower room/toilet. Please Call to Appoint *

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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.

Can I extend the front of my house?

When it comes to extending a home, the rear of the house often comes to mind a lot more than the front. However, this doesn’t mean that you can’t extend the front of your house. This can be done either as part of a renovation project whereby the entire house is incorporated or it can also be done in isolation. It’s possible to extend the front of your house without the need to apply for a planning permission, however, there are a bunch of limitations you’d have to comply with if you wish to carry out with such a project. Sometimes, this may imply that extending to the front of your home is more tedious and tasking than extending your home’s rear. So exactly how far can you extend the front of your home without planning permission?

 

The short and simple answer to this question is 2 metres square area with a height not more than 3 metres. Generally, you do not need a planning permission to build a front porch as long as its area doesn’t go beyond 2 square metres from a public road or walkway. Also, a tiled or slated roof can be as much as 4 metres but other roofs must not go beyond 3 metres in height. If you want to extend the front of your home beyond the restrictions specified, then you’ll have to apply for a planning permission.

 

Extending the front of home can be quite costly, but this can be controlled by not building to the extension to the highest specification, not including an extension on kitchens or bathrooms and more.

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 much is a double house extension?

A double house extension is basically a construction to any aspect of your house that elevates up to offer two floors of space. It can be structured to suit your existing home in two storeys or as a side wing on a taller property. If you’re considering building a double house extension, then estimating the cost is a very important task to do before commencing the project. In this article, we’ll give you an idea of the cost of a double house extension so you can estimate yours accordingly.

The double house extension cost depends on several factors that’s specific to your home as well as your design choice. These includes:

• Location of your property. Places like London and the southeast will generally cost more than the other regions due to higher demands.

• Accessibility of the site. The ease of your site’s accessibility also plays a key role in the price.

• Size of the extension. The more the extension’s size in footprint and square metres, the higher the possible costs.

• Materials used in making the roof as well as the complexity of the roof design.

• Your choice of finishing. These includes flooring window and door frames, glazing, underfloor heating and roof lights.

• Your property’s soil type. Different types of soil requires varying treatments as well as materials to develop solid foundations.

Constructing a double house extension is a quite simple build in terms of technicality when its to the side or rear of your house as this can also help you save some money. Generally, considerably expanding your home’s space by building a double house extension will cost within the range of £1,500 per m2 to about £2,800 per m2.

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