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House extension includes a wide variety of benefits that makes it very easy to see why the extension could be a great uptick in the possible rate of your residential property in regards to sales. So if you're seeking to construct a new house extension however still not persuaded regarding the job, we're below to aid you. Being fully aware any type of residence building and construction job is generally a hefty investment, there's a substantial requirement to be set on your decision prior to setting up the start of any work. So are house extensions worth it? Below are a few of the leading advantages offered by house extensions to aid you decide if it's one of the most suitable route for you.

 

What's Associated with Building an Extension?

The steps will certainly differ depending upon the range of your extension, but you can expect some, if not all, of the listed below to be included when including an extension to your house:

 

  1. Obtaining Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Checking your leasehold contract (if relevant) to make sure you can do what you wish to do.
  3. Enlisting an architect  to prepare the plans, considering your expected use (kitchen, shower room, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance company to allow them recognize of the intended work ahead of it beginning.
  6. Obtaining vehicle parking allows if needed for your professionals to ensure they have easy accessibility to your residential property.
  7. Making certain all prepared job drops within allowed allowables.
  8. Clearing the area as well as excavating if required, consisting of the elimination of trees.
  9. Building job can begin.

 

What is the price of a house extension in city?

If you're taking into consideration adding a 2 storey house extension, after that setting a budget for this project would be a great means to start. Similar to a rear extension, a two storey extension normally leaves the remainder of the structure requiring some job as well as, as a result of its size, this might suggest the re-development of the entire house - which is why they can be extremely pricey. Several of the various other affecting factors that can have big influence on a two floor house extension cost consists of: your location, the size of the develop, intricacy of the layout (anything beyond the common build will typically call for more competence and time), the glazing to be included (the much more the glass made use of in the project, the much more the product price), in addition to the group utilized.

Average House extensions cost in Henley-on-thames

The regular cost of House extensions are £44,167 in Henley-on-thames. Costs vary based upon the materials and the company picked. The upper price range can be as high as £62,667. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£29,000

Avg. price

Avg. price
£44,167

Avg. price high

Avg. price high
£62,667

£63200

£47400

£31600

£15800

£0

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

House extensions installation cost in Henley-on-thames 2026

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

Henley-on-Thames is a town and civil parish on the River Thames in the English county of Oxfordshire. It is set about 7 miles (11 kilometres) northeast of Reading and 7 miles west of Maidenhead. One of its limits has the tripoint of Oxfordshire, Berkshire and Buckinghamshire. It encompasses an area of around 2.15 square miles. In accordance with the 2011 Census, the town has a permanent population of around 11619 people. The first record of Henley is from 1179, when it is recorded that King Henry II 'had actually purchased land for the making of buildings'. King John bestowed the manor of Benson and the town and manor of Henley to Robert Harcourt in 1199. The existing Thursday market, it is believed, was approved by a charter of King John. A market was definitely in existence by 1269, despite the fact that the jurors of the assize of 1284 asserted to not know by what warrant the earl of Cornwall held a market and fair in the town of Henley. The existing Corpus Christi fair was approved by a charter of Henry VI. Henley is a world-renowned centre for rowing. Each summer, the annual Henley Royal Regatta is held on Henley Reach, which is a naturally straight region of the river just north of the town. It was extended synthetically. The event ended up being 'Royal' in 1851, when Prince Albert became patron of the regatta. The River and Rowing Museum, based in Mill Meadows, is the town's one museum. It was formed in 1998, and formally opened by Queen Elizabeth II. The museum, developed by the designer David Chipperfield, showcases info on the River Thames, the sport of rowing, and the town of Henley itself. For all your house renovations, make certain to identify dependable experts in Henley-on-Thames to make certain of quality.

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House extensions pros in Henley-on-thames

Dream the Build

19 review(s)
Based: in London, EC1V 2NX

DREAM the Build. Ltd ' Constructing your Vision Making home development exciting, fun and asset building experience , future proofing household & investors Who we are ? Starting fresh in a new country is never easy, but what we did Catal...

Latest review

Patricia Z., SE21
5

House Extension in London

Great consultation by Catalin Spent a lot of time with us understanding the project and various options.

Jassi Builders Ltd

2 review(s)
Based: in Hayes, UB4 9YD

Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I have completed all my work on perfect time and leave customers in complete satisfaction. We do all types of loft conversions, exten...

Latest review

Julian F., HP2
4

House Extension in Hemel Hempstead

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FAQs

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.

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 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.

Will my extension be expensive?

It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.

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Henley-on-thames House extensions pros are rated 4.4 out of 5 on average: 5 rated pros, 32 reviews, of 40 pros covering the area.
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