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Loft Conversions Cheshunt

At Detailed Planning, we pride ourselves on providing you with an expert, reliable and professional service. Every client and every project are treated with excellent care to ensure the success of your project.

Or call us now on 020 8150 0494

Attic & Loft Dormer Conversion Services in Cheshunt

Loft conversions and roof extensions, can be an affordable and a relatively simple way to create additional bedrooms or a habitable space for your home.

Most houses usually come with permitted development rights, in which case, loft conversions and roof extensions do not usually need planning consent. We can advise on how this can be achieved and prepare the application to obtain your lawful development certificate.

By working closely with our clients and taking time on your design, we can help turn ideas into reality and deliver a successful loft conversion that can be enjoyed for years to come.

Established in 2011 we have been providing architectural services for all types of residential projects, working alongside homeowners, builders and developers. So, if you’re a homeowner looking for an extra bedroom for a new family member, or if you are a developer looking to maximise the property potential, we will ensure your needs are met.

You can find our loft conversion and architecture in the following locations; Barnet, Cheshunt, Edgeware, Enfield, Finchley, Harrow, London and more, speak to our team today! 

Excellent service. Paul is very thorough and took his time to make his decisions and explain them to me. He is friendly and helpful and has a ‘can do’ attitude.

Would definitely recommend for any detailed drawings required, we got them in late in the day to provide building regs drawings, were really efficient in completing within the required timescales and went into a lot of detail to make sure everything was right.

I felt in very capable hands and expertly advised. I’d highly recommend Detailed Planning. Our new loft conversion has maximised the space available to us. 

Loft Conversion Design & Planning Permission Cheshunt

Understanding Your Project Goals

When we begin, we’ll take time to understand your brief, you may also have ideas of how the end product will look. We’ll take this into consideration but also consider costs, planning constraints and buildability. There’s no point designing something that can’t be built!

Striving to Create Quality Spaces

Our number one goal is to create spaces that meet requirements and go beyond the expectations of our clients. We love to hear that our clients are enjoying their new home and this gives us the energy to go on.

Believe In Quality Design for Everyone

Good design should not be limited to some Architects only. We are here to provide excellent architectural environments to all, at a more realistic cost compared with some architect fees.

Pushing Technical Detail

Every project is unique and ensuring it is buildable should be considered from the outset. Should we provide technical drawings, we’ll make sure risks on site are reduced by considering all parts of your project. This should lead to overall cost savings and minimised delays.

High Planning Success Rate

We never take on a project where the principle of the development seems unlikely to be approved. During the design, we’ll use our knowledge and check planning policies to give your application the best chance of success. We have worked with many authorities and understand how planning applications are decided.

Flexible Design Approach

We are not fixed to one design style; therefore we can be used for realist extension design to ultra contemporary. We will listen to your brief and design a bespoke extension meeting your needs.

Free Quote

Want to talk about your project? We will always check your enquiry to ensure there is a reasonable chance of success.

Our quotes are free and we can provide free office consultations should your project be viable. You can also read our article what is a loft conversion to answer any questions! 

Our Process

1. Design

Whether your family is growing, and you need an extra bedroom, or you want a new bright modern open plan living; we can help find a solution to maximise your space. Here at Detailed Planning, we have a team of trained designers that are specialised in creating amazing spaces for all types of briefs. We understand the cost of developing a property, so we’re sensitive to our costs and guidance. We aim to help you stretch your money enough to get the best results!

2. Get Approved

We are experts at obtaining planning consent for loft conversion. If your house benefits from permitted development rights, we’ll complete the necessary drawing and documents to demonstrate your proposal falls within guidance and the permitted cubic allowance. Should your loft conversion require planning consent, we can give you the best chance of planning consent by acting as your agent throughout the process.

3. Technical

This is the stage where the detailed technical drawings are carried out by our design team. We believe in providing extra detail so your builder construction your project with the quality it deserves. Remember, in order for a project to go accordingly, having a good, detailed set of drawings is crucial.

4. Ready. Set. Go

At last! Your dream home is now ready to go under construction! This is all very exciting and you now have all the relevant drawings to hand. At this point of the project, we provide a continued support service, so feel free to call us whenever you like. All that’s left to do now is grab a cup of tea and relax!

This loft conversion project exceeded our client’s expectations and created a space for their family to enjoy for years to come.

Site Visit/Measure

  • Consultation to Review Brief
  • Laser Measure of Your Property
  • Floor Plans and Elevation Measure
  • Existing Drainage and Property Investigation
  • Photographic Schedule
£250 + VAT

*this price is an estimate based on previous project, not an actual quote


  • Existing Drawings
  • Proposed Drawings
  • Up to 3 free revised drawing sets
  • Planning application preparation (exc. council fee)

  • Act as your planning application
  • Negotiations and revisions with your case officer to achieve a successful application

£650 + VAT

*this price is an estimate based on previous project, not an actual quote


  • Building regulation specification
  • 1:50 detailed plans
  • 1:50 section drawing
  • 1:10 detailed sections
  • Submission and liaising with Building Control (excl. fee)

  • Liaising with other consultations, i.e. engineer and party wall surveyor

£600 + VAT

*this price is an estimate based on previous project, not an actual quote

£250 + VAT

*this price is an estimate based on previous project, not an actual quote

£650 + VAT

*this price is an estimate based on previous project, not an actual quote

£600 + VAT

*this price is an estimate based on previous project, not an actual quote

Loft Conversion FAQs

What is the average cost of a loft conversion?

The cost of a loft conversion in the UK can vary widely depending on various factors, such as the size and complexity of the project, the location, and the materials used.

To get the most accurate estimate of the cost of your loft conversion, it is best to consult with a professional loft conversion company or contractor who can provide a detailed quote based on your specific requirements and preferences. 

You can speak to our team here at Detailed Planning if you would like a bespoke quote.

Do I need permission for a loft conversion?

In most cases, you will not need planning permission for a loft conversion in the UK, but it depends on several factors, including the loft conversion type and location. It is recommended to check with your local planning authority or consult a professional to determine if planning permission is required for your specific project.

What are the rules for a loft conversion?

The rules for a loft conversion in the UK vary depending on factors such as the type of loft conversion, location, and building regulations. Loft conversions must comply with building regulations to ensure safety, health, and environmental standards. It is recommended to consult with a professional loft conversion company or architect to understand the specific rules and requirements for your project.

How long does it take to convert a loft?

The time it takes to convert a loft in the UK depends on several factors, such as the project’s complexity, the loft’s size, and the materials used. On average, a loft conversion can take 4 to 10 weeks, but larger or more complex projects can take longer. It is recommended to consult with a professional loft conversion company or contractor to get a more accurate estimate of the timeframe for your specific project.

Do I need to tell my neighbour about the loft conversion?

You may not be required to inform your neighbour about a loft conversion, but it is recommended to do so as a courtesy. If the loft conversion affects your neighbour’s property in any way, such as during construction or blocking their view, you may need to obtain their consent or inform them of the plans. It is best to consult with a professional loft conversion company or your local planning authority to determine if you need to inform your neighbour about your loft conversion project.

Can a neighbour object to a loft conversion?

Yes, a neighbour can object to a loft conversion if they have concerns that the project may adversely affect their property in some way, such as blocking their view or causing damage. However, their objection may not necessarily stop the loft conversion if it meets all the requirements for planning and building regulations. It is recommended to consult with a professional loft conversion company or your local planning authority to understand your project’s specific rules and requirements and how to address any potential objections from neighbours.

Do you need fire doors downstairs if you have a loft conversion?

The need for fire doors downstairs when you have a loft conversion depends on your property’s specific layout and design and whether it meets the fire safety regulations. In general, building regulations require that a loft conversion should have a safe means of escape in case of fire, and this may include the installation of fire doors, smoke alarms, and other fire safety measures. It is recommended to consult with a professional loft conversion company or your local building control authority to determine the specific fire safety requirements for your loft conversion project.

Do I need an architect for a loft conversion?

You may not need an architect for a loft conversion. Still, consulting with a professional architect or loft conversion specialist is recommended to ensure that your project meets all the necessary planning and building regulations requirements. An architect can also help you to design a loft conversion that maximises the available space, enhances the aesthetics of your property, and meets your specific requirements and preferences. Additionally, an architect can provide technical drawings, specifications, and project management services to ensure your loft conversion is completed to a high standard and within the required timeframe and budget.

Did You Know?

We have completed over 1000 projects
We have 97.5% success rate on planning application
100% building regulations approval!

What Our Clients Say