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Kensington Conservatories

When looking for the right conservatory for your property, finding the right design that suits both your tastes and the right installer that fits your budget is a vital step.

Conservatory Online Prices provides a free and quality service, giving you all the tools necessary for you to build your own quote from the ground up. By using our online Conservatory Cost Calculator, we can connect you with the best installers in the Kensington area, fully recommended to ensure you receive only the best installation to maximize the lifespan of your conservatory.

Kensington Information

Key Facts

Population: 157,711

Useful Information

Royal Borough of Kensington and Chelsea Council

Planning Permission

What Kind Of Conservatory Is Right For Me?

There are several options of conservatory to choose from, depending on your property type.

Victorian and Edwardian styles are the most popular. The Victorian design best suits traditional buildings, with period details complimenting your homes preexisting features. Edwardian conservatories can suit both traditional and modern homes, with a simplistic and stylish rectangular build.

While buildings with restricted height or plotsize such as bungalows and conservatories are restricted in what kind of conservatory they can, that doesn’t mean you have to sacrifice style or quality. Lean-To conservatories are a cost efficient and simplistic design that fit easily within awkward spaces, maximizing available floor space.

For larger buildings or properties with large gardens, Orangeries are a quality, if more expensive option to add a sense of class and luxury to your home. Originally built in the 19th century to house citrus plants during the winter months, their brick-based structure offers superior insulation and privacy.

For more information on conservatory designs, please consult our online brochure.

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Frequently Asked Conservatory Questions

IThe majority of conservatories with a tiled conservatory roof will not require planning permission. This is because they are covered under what is known as a 'permitted development.'

However, Building Regulations will apply if you want to build an extension on your home.

In most instances the council tax will not increase on a property unless the additions another living quarter or self-contained annex. This means the addition of a conservatory should not increase the council tax payable on a property. To be absolutely certain you can always check the government's website which gives advice on council tax.
The main difference between a conservatory and an orangery is how the roof is constructed. A conservatory roof is over 75% glazed whereas an orangery roof has less than this amount. A conservatory also has over half of its wall space glazed whereas an orangery can include more brickwork than this.
Yes, you can put a conservatory on the front of your house. This is because conservatories come under the category of a permitted development. As such in most instances you do not need planning permission. This applies if the area surrounding the original house is not more than 50% covered by other buildings or additions.
There are many ways of gaining temperature control. Conservatory blinds, ventilating windows, cooling film and air conditioning to name a few. You might also want to consider replacing your conservatory roof with a tiled or solid design.
There are many ways of keeping your conservatory warm in the Winter. If you have a small conservatory then an electric heater will suffice but those with bigger conservatories may want to look into installing underfloor heating.
Glazing is also very important in a conservatory. Most heat can be lost through glass so ensure your conservatory glazing is thermally efficient. You can also tackle draughts or cold spots by installing conservatory blinds.
This will largely depend on your location. You will find that certain areas have different setbacks based on the use of the building. We recommend that you check with your local council or take a look at the Goverment's Planning Portal.

You must notify your neighbour if you want to:

- Build on or at the boundary of your 2 properties - Work on an existing party wall or party structure - Dig below and near to the foundation level of their property
Replacing your conservatory roof can indeed make your conservatory warmer however, this will depend on the type of roof you choose. A solid or tiled conservatory roof will offer greater insulation than a plastic or glazed roof.
A solid roof can be put on a conservatory. There are many solid conservatory roof designs available - just ask your chosen installer for a recommendation. The majority of new-build conservatories with a solid, tiled or glazed roof will not require planning permission. They are covered under what is known as 'permitted development'. However, building regulations will apply if you want to build an extension.
When it comes to your home improvement, it's important to have all the necessary legal documentation. The installation of a conservatory, orangery or porch does not require a FENSA registration form.
The average life span of a uPVC conservatory is largely dependent on the quality of materials and build. Typically, a uPVC frame can last up to 25 years but some can last for decades ensuring they are well maintained.
Planning permissions used to say that a certain percentage of roofing must be translucent in order for a conservatory to be exempt from planning permission. Changes to building regulations however, now means that you may not require planning permission for roof replacement.
Swapping your existing conservarory roof for a tiled or solid roof replacement can be done without needing to file for planning permission. Planning permission may be required however, if the height of your extension is changed following completion.
A conservatory is defined as a 'building that has no less than 75% of its roof area made of translucent material and no less than 50% of its total wall area made of glass.
It is possible to convert a conservatory to an orangery but it isn't a simple process. A surveyor will need to come out and assess your property and conservatory to see if it is at first , feasible.
Both extensions and orangeries often require planning permission and in order to satisfy requirements, a new structure will have to be built.
If a conservatory is within two metres of a boundary, a conservatory should not be higher than three metres. It must also not extend beyond the rear wall of the original house by more than 3m if an attached house or by 4m if a detached house.
For construction work to begin a trench will need to be excavated to a minimum depth of 600mm. A conservatory needs footings just as much as any extension does.
Solid ground will need to found first and needs to be accepted by Building Control as being a minimum of 1 metre in standard conditions.
Foundations will need to be dug and because conservatories are lightweight in structure, their foundation loads are usually quite low. This can often lead to the notion that shallow foundations are satisfactory however, shallow foundations are more susceptible to subsidence.

Conservatories that are built with foundations shallower than the Building Regulations advise, are likely to encounter problems.

Building Regulations state:

A2. The building shall be constructed so that ground movement caused by :-
(a) swelling, shrinkage or freezing of the subsoil; or
(b) land-slip or subsidence (other than subsidence arising from shrinkage), in so far as the risk can be reasonably foreseen, will not impair the stability of any part of the building
Usually, there are no planning requirements when it comes to building a conservatory to a bungalow. However, the conservatory will be subject to certain conditions so be sure to check with your local building authority or with the Government's Planning Portal to ensure your conservatory remains within these guidelines.
When is a conservatory not a conservatory? In order for a structure to remain a permitted development (a conservatory), the build needs to comply with a number of rules. A conservatory must be ground level, must not be more than 30m2, must be thermally separated from the original building, have its own heating and have glazing in critical zones that meet Part Nof the building regulations.
An extension refers to an additional structure that is anatomically in-keeping with your main property. An extension often requires planning permission unless it is classified as permitted development and is built with opaque cavity walls and brick-based foundations. Extensions are a big home improvement and investment, needing the work of an architect.
Conservatories or glazed extensions are perfect for those looking to add extra space on a budget. Typically, they are less of a logistical strain and in most cases do not require planning permission,
A conservatory can be built under permitted development rights, not needing an application for planning permission. A conservatory however is subject to the limits and conditions listed here. Building a conservatory onto an extension however, will be subject to different conditions. In some cases and under the permitted development regulations, you cannot attach an extension to an already extended part of a dwelling. It has to be attached to the original walls of the dwelling house.
A well built conservatory can increase your home's value by up to 7% . A conservatory can add lots of value to your home, increasing monetary value and making it much more attractive to a prospective buyer. A conservatory extension will change how you live and interact in your home for the better, enhancing space and comfort. It will certainly put your home above other properties too, especially when it comes to attracting a potential buyer. Read more here.
Conservatories are generally much cheaper than a single-storey extension of the same size. The price difference will largely depend on size and how complex the structure is to build, as well as the quality of materials.
A conservatory or single-story extension can be built without planning permission if: It's a maximum of 4 metres high or 3 metres high, within 2 metres of a boundary and the conservatory or extension does not cover more than half of the garden.
From now until 2019, you can extend outwards by up to 8 metres for detached homes and 6 metres for other property types. For this, instead of applying for planning permission you will need to undergo a Neighbour Consultation Scheme.
In most circumstances, building regulations tend to apply when you build a new extension or a very large structure to your property. However, most of the time, conservatories are exempt from building regulations when they are erected at ground level and the floor surface areas is less than 30 square metres.
The average life expectancy of a conservatory depends on the quality of materials used as well as the installer. Generally speaking a conservatory built with uPVC window and door frames can last up to 25 - 30 years.
It is possible to build either a conservatory or a single-storey extension without gaining planning permission if: firstly, it has a maximum height of 4 metres or 3 metres high if situated within 2 metres of an existing boundary. The conservatory itself does not exceed over half the size of the garden.
Yes you can! Whatever the shape of your existing conservatory, you can be sure that there is a solid roof equivalent to meet your exacting requirements.
Changing roofs from a polycarbonate to a solid roof means that building regulations will apply. Your chosen installer will be able to answer any questions you have and help with any red tape such as contacting local authorities to resolve building regulations compliance.

Edwardian Conservatory Costs

 

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £9,000 – £10,500
3500 x 3500 Glass £9,500 – £11,000
3500 x 4000 Polycarbonate £11,500 – £12,500
3500 x 4000 Glass £12,000 – £13,500
4000 x 4000 Polycarbonate £13,500 – £15,000
4000 x 4000 Glass £14,500 – £16,000

Full Build – Fully Glazed

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £8,000 – £9,000
3500 x 3500 Glass £8,500 – £9,500
3500 x 4000 Polycarbonate £9,500 – £11,000
3500 x 4000 Glass £10,500 – £11,500
4000 x 4000 Polycarbonate £11,500 – £13,000
4000 x 4000 Glass £12,500 – £14,000

Refurbishment – No Base Work

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £5,750 – £6,500
3500 x 3500 Glass £6,250 – £7,000
3500 x 4000 Polycarbonate £6,500 – £7,500
3500 x 4000 Glass £7,500 – £8,500
4000 x 4000 Polycarbonate £7,750 – £8,750
4000 x 4000 Glass £8,500 – £9,750

Gable Conservatory Prices

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £11,500 – £13,000
3500 x 3500 Glass £12,500 – £14,000
3500 x 4000 Polycarbonate £12,750 – £14,250
3500 x 4000 Glass £13,500 – £15,000
4000 x 4000 Polycarbonate £13,750 – £15,250
4000 x 4000 Glass £14,500 – £16,000

Refurbishment – No Base Work

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £6,500 – £7,500
3500 x 3500 Glass £7,500 – £8,500
3500 x 4000 Polycarbonate £7,000 – £8,000
3500 x 4000 Glass £8,000 – £9,000
4000 x 4000 Polycarbonate £7,500 – £8,500
4000 x 4000 Glass £8,500 – £9,500

Lean-To Conservatory Prices (Full Build Dwarf Wall)

Conservatory Size (mm) Roof Material Guide Price
3500 x 2000 Polycarbonate £7,000 – £8,000
3500 x 2000 Glass £7,500 – £8,500
3500 x 2500 Polycarbonate £8,000 – £9,500
3500 x 2500 Glass £8,500 – £10,000
4000 x 2000 Polycarbonate £7,500 – £9,000
4000 x 2000 Glass £8,000 – £9,500
4000 x 2500 Polycarbonate £9,000 – £10,000
4000 x 2500 Glass £9,500 – £10,500

 

Full Build – Fully Glazed

Conservatory Size (mm) Roof Material Guide Price
3500 x 2000 Polycarbonate £6,000 – £7,000
3500 x 2000 Glass £6,500 – £7,500
3500 x 2500 Polycarbonate £7,000 – £8,000
3500 x 2500 Glass £7,500 – £8,500
4000 x 2000 Polycarbonate £6,500 – £7,500
4000 x 2000 Glass £7,000 – £8,000
4000 x 2500 Polycarbonate £7,500 – £8,500
4000 x 2500 Glass £8,000 – £9,000

 

Refurbishment – No Base Work

Conservatory Size (mm) Roof Material Guide Price
3500 x 2000 Polycarbonate £4,500 – £5,000
3500 x 2000 Glass £4,750 – £5,250
3500 x 2500 Polycarbonate £5,000 – £5,500
3500 x 2500 Glass £5,500 – £6,000
4000 x 2000 Polycarbonate £4,750 – £5,250
4000 x 2000 Glass £5,000 – £5,750
4000 x 2500 Polycarbonate £5,000 – £5,750
4000 x 2500 Glass £5,750 – £6,250

P-Shaped Conservatory Prices

Conservatory Size (mm) Roof Material Guide Price
5000 x 3000 Polycarbonate £12,500 – £14,000
3500 x 3000 Glass £13,000 – £14,750
5000 x 3500 Polycarbonate £13,500 – £15,000
5000 x 3500 Glass £14,000 – £15,500
5000 x 4000 Polycarbonate £14,250 – £15,750
5000 x 4000 Glass £15,000 – £16,500

Refurbishment – No Base Work Included

Conservatory Size (mm) Roof Material Guide Price
5000 x 3000 Polycarbonate £7,750 – £8,750
5000 x 3000 Glass £8,250 – £9,250
5000 x 3500 Polycarbonate £8,250 – £9,250
5000 x 3500 Glass £8,750 – £9,750
5000 x 4000 Polycarbonate £8,750 – £9,750
5000 x 4000 Glass £9,500 – £10,500

T-Shaped Conservatory Prices

T-Shaped Conservatory Costs: Dwarf Wall

Conservatory Size (mm) Roof Material Guide Price
5000 x 3000 Polycarbonate £12,500 – £14,000
3500 x 3000 Glass £13,000 – £14,750
5000 x 3500 Polycarbonate £13,500 – £15,000
5000 x 3500 Glass £14,000 – £15,500
5000 x 4000 Polycarbonate £14,250 – £15,750
5000 x 4000 Glass £15,000 – £16,500

Refurbishment – No Base Work Included

Conservatory Size (mm) Roof Material Guide Price
5000 x 3000 Polycarbonate £7,750 – £8,750
5000 x 3000 Glass £8,250 – £9,250
5000 x 3500 Polycarbonate £8,250 – £9,250
5000 x 3500 Glass £8,750 – £9,750
5000 x 4000 Polycarbonate £8,750 – £9,750
5000 x 4000 Glass £9,500 – £10,500

Victorian Conservatory Prices

Prices depend upon a variety of factors such as the width, projection, colour, roof type, building works amongst others.

 

Victorian Conservatory Costs

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £11,000 – £12,500
3500 x 3500 Glass £12,000 – £13,500
3500 x 4000 Polycarbonate £12,000 – £13,500
3500 x 4000 Glass £13,000 – £14,500
4000 x 4000 Polycarbonate £13,000 – £14,500
4000 x 4000 Glass £13,500 – £15,500

Full Build – Fully Glazed

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £9,500 – £11,000
3500 x 3500 Glass £10,500 – £11,500
3500 x 4000 Polycarbonate £10,500 – £11,500
3500 x 4000 Glass £11,000 – £12,500
4000 x 4000 Polycarbonate £11,000 – £12,500
4000 x 4000 Glass £12,000 – £13,500

Refurbishment – No Base Work

Conservatory Size (mm) Roof Material Guide Price
3500 x 3500 Polycarbonate £6,500 – £7,500
3500 x 3500 Glass £7,500 – £8,500
3500 x 4000 Polycarbonate £7,000 – £8,000
3500 x 4000 Glass £7,750 – £8,750
4000 x 4000 Polycarbonate £7,500 – £8,500
4000 x 4000 Glass £8,500 – £9,500
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