web analytics

All the plans you need for


Welcome to London's premier Planning and Design service for your home Extension, Loft conversion, or alteration needs!

At Sharpeplan we understand the importance of getting planning and Building Regulation Approval for your construction projects without the hassle and at a great price. That's why we offer a true 1-stop solution, handling everything from site surveys to Planning Permission submissions, ensuring a smooth and efficient process for you.

Simplifying the Approval Process:

We understand that dealing with council approval can be overwhelming. That's why we take charge of the entire process. From preparing plans to completing application forms, we manage every step and liaise with the Planning and Building control departments. Our expertise ensures your design gets approved without unnecessary delays.

All the design services for your build

Why choose us?

Comprehensive Services:

Our range of services includes:

  • Site surveys:

Thorough analysis to ensure precise planning.

  •  Architectural drawings:

Beautifully crafted plans tailored to your requirements.

  • Detailed specification drawings:

Covering every aspect of your project's specifications.

  • Specification writing:

Clear and concise documentation for a seamless process.

  • SAP Calculations:

Ensuring energy efficiency compliance.

  • Structural calculations: 

Reliable support for your project's structural integrity.

  • Planning application submissions:

Navigating the complex process on your behalf.

  • Building regulation submissions:

Making sure your project meets all necessary regulations.

  • Thames water build over agreements:

Handling the necessary agreements with Thames Water.

Unparalleled Quality:

When you choose us, you can expect nothing less than the best. Our plans are bespoke and meticulously drawn using Computer-Aided Design (CAD) throughout the entire process. This not only results in highly accurate drawings but also allows us to revise and improve elements efficiently, leading to cost savings we gladly pass on to our clients.

Swift Turnaround:

Time is of the essence, and we understand that. Our premium service guarantees that your initial plans will be ready within 7 working days. We value your time and strive to deliver exceptional results promptly.

Building your dream space shouldn't cost a fortune. Our constant commitment to checking and adjusting our prices ensures that we offer some of the best rates in the market without compromising on the quality of service.

Frequently Asked Questions:


Q: What is the difference between Planning Permission and Building Regulation Approval?

A: Planning Permission focuses on the external appearance and impact of a development on the surrounding area. On the other hand, Building Regulation Approval deals with the structural and technical aspects of the construction, ensuring it complies with safety and energy efficiency standards. Both approvals are essential for a successful project.

Q: How long does the approval process usually take?

A: The duration of the approval process can vary depending on the complexity of the project and local council workload. Typically, Planning Permission decisions take 8-12 weeks, while Building Regulation Approval is usually granted within 6-8 weeks. However, our team's expertise ensures a smooth process and minimizes any unnecessary delays.

Q: Can I make changes to the design after the approval is granted?

A: It's essential to finalize your design before seeking approvals, as significant changes after approval may require re-submissions and incur additional costs. We recommend discussing all your requirements and preferences during the initial planning stages to avoid such complications.

Q: Can I carry out the construction without approvals?

A: No, it is illegal to proceed with construction without obtaining the necessary approvals. Non-compliance can result in penalties, fines, or even demolition of the unapproved structure. Working with our team ensures a lawful and efficient process, giving you peace of mind.

Common Misconceptions and Advice:

  1. Misconception: "Obtaining approvals is too expensive and time-consuming."Advice: While approvals are a crucial step, working with a professional team like ours can streamline the process and save you time and money in the long run. We offer competitive pricing and a quick turnaround, ensuring a hassle-free experience for our clients.
  2. Misconception: "I don't need Building Regulation Approval for small-scale projects."Advice: Building Regulation Approval is vital for all construction projects to ensure safety, energy efficiency, and compliance with relevant laws. Regardless of the project's size, seeking approval is essential to protect your investment and ensure the safety of occupants.
  3. Misconception: "I can handle the approvals myself."Advice: While it's possible to handle approvals independently, the process can be complex and time-consuming. Engaging our professional services provides you with expert guidance, reduces potential errors, and increases the chances of a successful approval on the first attempt.
  4. Misconception: "My architect can handle all aspects of the approval process."Advice: While architects are essential for designing your project, not all of them are experienced in navigating the approval process. Our team specializes in both design and approvals, ensuring a seamless and efficient process from start to finish.


Planning or Building regulations, are they the same?

Is there a difference between planning permission and building regulations?

This is a question that we are asked by home owners, business owners and property developers that want to ensure their projects compliant.

let’s set the record straight Planning applications and Building Regulations (Building Control) applications are considered under different laws.

Planning permission covers the principles of development assessing whether the development will accord with local and national policies and whether it would cause unacceptable harm, for example, to neighbours’ amenities

Building regulations cover the structural aspects of development and progress throughout the construction.

how long will this take?

We can have your application completed and submitted in as little as 5 working days* then planning will usually take around 6-8 weeks to issue a decision.

do you include a site survey?

Yes we include a site survey in our standard packages, we service any site within the M25 if you live outside this area then please enquire we may be able to help

how much will this service cost?

From as little as £399!

Please complete this form and your estimate will be on the next page.

Structural calculations are not included with this estimate, as they are a bespoke item and particular to the property, we will need to review the site as part of our initial verification process and we will include a quote for this by email reply that will include our fees .

Price guide.
loft conversion structural calculation packs start from £325 and £90 per beam for extensions, just to give you an idea.

Need approval to build your home extension or loft conversion?

We provide architectural services for exactly that!

Hassle free package

Our planning agents take care of the paperwork so you don’t have to worry about it.

Plans in as little as 5 days

from site survey to submission 

Revisions handled online

We handle everything over the phone, with planning decision  sent to your door as soon as it’s ready.

How do we get approval for you.


  • It all starts with contact

Our friendly specialists will chat through your requirements to help you understand the process, whether you need it and how much it’s going to cost.

  • Get a quote and see for yourself

The easiest step to make would be to get your estimate from us, this could be completed today in as little as 60 seconds, use our online feature and get you estimate today, literally in 60 seconds, send us your estimate for approval.

Need A Plan Estimate?

get it in 60 seconds

Need A Plan Estimate?

get it in 60 seconds


Preparing your application for submission

  • Book your survey

We will be finished before you know it, our survey and site consultation takes 2 hours to complete on average. We use the latest laser measuring tools and surveying equipment. making the process allot quicker than average architectural practices.

  • or send us your sketch

Alternatively you could provide your own sketches and we will prepare your plans from the information provided. if you need any assistance please contact us and we will be happy to help


  • See your plans in 7 working days

We will include all the things we discussed during our site survey and consultation or gathered within your self survey and telephone consultation within the draft set of plans which as a standard are prepared within 7 days.  

  • Plans submitted 

We will submit your application to local council and follow through with any revisions required for no additional charge. this could be the make or break service between an approval and a refusal.

"Quality plans at affordable rates"

  • existing
  • proposed
  • Proposed 3-d


Marie Novan

Loft conversion designed by Sharpeplan -

We’ve moved homes 3 times in the last 5 years. We bought a detached property and wanted to convert the loft as part of our vision for the life of the property, our kids needed the space and the cost of building the loft and altering the property the way we wanted was slightly less on paper than then purchasing a property with similar attributes. In short we were able to reduce the cost, come in under budget and I must say this is thanks to myriad of services provided by Sharpeplan.

Services undertaken by Sharpeplan

  • Plan preparation.
  • Detailed section drawings
  • Specification Writing
  • Planning Application submission
  • Building Regulation Application Submission
  • Structural calculations
  • ​​Drawings for party wall agreement
Mr Redman

Always recommended - Hammersmith and Fulham

I have recommended Sharpeplan twice, your fees were the lowest out of the quotes we received. All our questions were answered and we were able to make some design changes along the way. Everything design related was covered seamlessly. Our builder was impressed with the level of detail in the drawings. Thanks again.

Services undertaken by Sharpeplan

  • Plan preparation.
  • Specification Writing
  • Detailed drawings
  • Building Regulation Application Submission
  • Structural calculations
  • ​​Drawings for party wall agreement
  • Material lists
  • Builder Tender pack
​Mr James Ketering

Loft conversion - Haringey

We need extra space and wasn't sure what we could get for our budget. We had a two-bedroom semi and needed an additional room because our sons were sharing didn't want to move and the additional space was a must. We wanted to save as much money as possible.

Kevin our builder introduced us to Sharpeplan who took care of the design process. We felt included throughout and was able to make some key design choices we have and will continue to recommend their service

Services undertaken

Sasha Olsen

All-inclusive service - Lambeth

Sharpeplan are excellent Architects, they gave us a detailed quote with everything we needed, other quotations we received left out things like structural calculations and building regulations. Trustworthy and very easy to get along with. Will be working with you again in the future and would like to take the time to thank you.

Services undertaken by Sharpeplan

  • Plan preparation with 3d bolt-on.
  • Specification Writing
  • Detailed drawings
  • Planning Application submission
  • Building Regulation Application Submission
  • Structural calculations
  • Sap Calculations
Mr A Dillard

Back again - Lewisham

We converted our loft around 8 years ago with Sharpeplan and we are back converting our second property, we just wanted to take the time to thank Nigel for his time expertise. It became apparent early on in the design process that he was a major asset and a godsend at such an early stage of the process, we always recommend Sharpeplan.

Services undertaken by Sharpeplan

Mr O'connor

loft conversion - Southwark

Sharpeplan have done a terrific job gaining approval for my loft in a conservation area. Every aspect of my brief was fulfilled, they were always available, delivered to their agreed times and cost also thoroughly pleasant to work with.

Services undertaken by Sharpeplan

  • Plan preparation
  • 3d bolt-on
  • Specification Writing
  • Detailed drawings
  • Planning Application submission
  • Building Regulation Application Submission
  • Structural calculations
  • ​​Drawings for party wall agreement
Mrs Collins

New bedrooms above flat - Wandsworth

We have a first floor flat, we learned early in the process that we would need full planning if we wanted to convert the loft with a dormer, we found Sharpeplan and Nigel came up with a design that greatly exceeded our expectation. From our initial design meeting we felt very confident and well informed with regards to the process and finalising the design brief. We had no issues through planning and building regulations, we had one design revision request from the planning officer which we was informed about Nigel and his team amended and submitted within the same application. We really feel that the services that are provided by Sharpeplan are all inclusive and would recommend if the opportunity arises.

Need A Plan Estimate?

get it in 60 seconds

Need A Plan Estimate?

get it in 60 seconds

© 2018 All rights reserved by - Sharpeplan®

+ Add a Block or drag an element into the page