“An excellent experience from start to finish. Michael was professional, and our application was approved.”
Approved DrawingsExtension advice, drawings and complete application packages.
Extensions, Made Simple
Whether you're exploring ideas or ready to apply, our extension expertise will help you move forward with confidence. From professional drawings to complete extension submissions, everything is tailored to your project and delivered at one fixed price.
Do I need planning? Will my project be approved? How long will it take and what will it cost? What are the next Steps?
Find out for free directly from the company founder with a no obligation project assessment.
- 5-Star Rated On Google
- Applications Ready Within 14 Days
- London & Home Counties Coverage
What we do
Extension Projects Don't Have to Be Complicated
Red tape, ambiguous rules and complex application requirements. Extension projects can be complicated. But it doesn't have to be.
We use our experience and know how to cut through the noise, taking the stress out of extension projects and getting our clients' projects off the ground from day one. Types of projects we can help with:
Home Extensions
Loft Conversions
Garage Conversions
Conservatories
Change of Use Applications
HMOs
Architectural Design
Floor Plans
5+ Years
Experience
Experience
Full Professional
Indemnity Insurance
Indemnity Insurance
Fixed Price
Packages
Packages
Reviews
What it's actually like to work with us.
Real projects, genuine feedback and the drawings that helped move them forward.
Approved Drawings“Michael made the drawings and planning process much less stressful, and was always helpful.”
Approved Drawings“Great service from start to finish. Michael was honest, knowledgeable and detail-focused throughout.”
Proposed DrawingsHow it works
A simple four-step process from enquiry to approval.
01
Free initial assessment
Tell us what you're planning and we'll advise on the best route.
02
Survey & design
If you choose to move forward, we survey your property and prepare your drawings.
03
Application submitted
We prepare the application and deal with the council.
04
Decision & next steps
We'll explain the outcome and what happens next.
5-Star Rated On Google
All Work Fully Insured
Applications Ready Within 14 Days
Why us
Why Homeowners Choose Us
A professional, founder-led planning service designed to make the process as straightforward as possible.
Michael
Founder of Form & Function London
- BSc Building Surveyor
I started Form & Function because planning a home project shouldn't feel confusing. I'll personally review your project, explain your options in plain English and manage the process through to the council decision.
Deep Professional Experience
With years of professional experience managing projects across a range of industries, we have a proven track record of success for clients.
Founder-Led Service
Single point of contact from initial enquiry right through to submission — you'll have a direct line to the founder the entire time to ensure first class service.
Design Built Around You
We don't force a standard solution. We'll develop your ideas and advise on how to make them practical and planning-friendly.
Ready when you are
Get Your Free Planning Assessment
Tell us a little about your project and we will explain:
- The type of permission you require (if any)
- How to get Council approval
- Any specific local rules in your area
- What the likely timeline will be
- What the likely costs will be
- How to get started
You’ll receive clear, honest advice and a fixed quotation directly from the person who’ll manage your project from start to finish.
Frequently asked
The questions people actually ask us.
How long will it take to get permission?
We aim to have your application submitted within 14 days. The council then must make a decision within the statutory period of a maximum of 8 weeks.
What's included in your application?
Simply put, everything you need to secure approval. We handle every step for you, from the initial survey and production of all scaled drawings and plans, right up to submission and management of the application with the council.
Which areas of the UK do you cover?
We mainly work in London and the Home Counties but are happy to travel, so get in touch!
How long will it take to submit my application?
On average, just 14 days. We aim to have the draft version of your application with you within 7 days of survey. We then aim to have the full application complete and submitted 7 days later.
Can you help me with designing my ideas?
Yes, absolutely. Good home design is something we are deeply passionate about and would love to help make your ideas a reality.
Will I have to speak to the council?
No, not unless you specifically want to. We handle the entire process for you, acting as your planning agent and handling all correspondence with your local authority — you will only hear from them once a (hopefully positive) decision has been reached.
What is the difference between planning permission and permitted development?
Permitted Development allows certain home improvements, provided they meet size and design limits, which are guaranteed by a Lawful Development Certificate. Planning Permission is a formal process that involves a council decision. We'll identify which applies to your property and prepare drawings accordingly.