Expert house extension plans designed, approved, and guaranteed across Greater Manchester. Single storey extensions, double storey extensions and front extensions are all handled from first drawings to planning permission.
First drawings delivered in 28 days, guaranteed.
Find out what’s possible in 30 minutes
Jamie JonesTrustindex verifies that the original source of the review is Google. Fantastic service from first call to final signoff. All stages of the design were prompt and collaborative. Final result has been amazing and Robyne and Chris were very quick and helpful to jump in and help get building sign off pushed through when needed. EveTrustindex verifies that the original source of the review is Google. We used Plans to Extend, after a recommendation from friends. Really helpful in guiding us through the process I'll get in a wall taken down and all of the drawings, structural engineering import and taking it through building control. Amounts of time by them knowing all about these and explaining things in a straightforward way. They also worked really hard to meet her deadlines. Great job! Miya LevyTrustindex verifies that the original source of the review is Google. We are very pleased with Chris and the team on our extension project. They are professional, helpful, friendly, and patient from the start to finish. Would definitely recommend! Tom HobsonTrustindex verifies that the original source of the review is Google. Chris, Robyne and the team were absolutely fantastic throughout our extension project. They were helpful, knowledgeable and patient while we figured out the perfect design for our vision! They also got us through the whole planning permission process with no major fuss or input from us. Would definitely recommend these gays to anyone 👍 Paul BennettTrustindex verifies that the original source of the review is Google. What an outstanding service and fantastic people to deal with. I have an extensive chat and was given very valuable information on our project. Sadly not what we needed to hear and we're rethinking our options, but the service so far has been outstanding and I have no hesitation but to recommend. kia ParsiTrustindex verifies that the original source of the review is Google. "We recently worked with Chris Marsden team on our home extension project, and the experience was outstanding from start to finish. Their design perfectly balanced functionality and aesthetics, transforming our vision into reality. They handled the entire planning process seamlessly, securing both planning permission and building control approval without any stress on our side. Communication was clear and timely, and every detail was thoughtfully considered. We couldn’t be happier with the result and highly recommend Chris for anyone looking for a skilled and reliable architect." Julie RichardsonTrustindex verifies that the original source of the review is Google. We are so lucky to have chosen Chris as the planner for our restaurant. From our first meeting up until the present day Chris has been so helpful with all our questions ( and there’s been a lot) He goes above and beyond to help us and spent hours sourcing companies to help us with a dilemma when the council put up obstacles. Always helpful always happy always willing. His knowledge is impeccable and if he doesn’t know he will find someone that does. We couldn’t be happier and would definitely recommend him on any planning venture. Darren swiftTrustindex verifies that the original source of the review is Google. Chris and Robyne were very helpful creating our plans and getting our project through planning. Would highly recommend Test nameTrustindex verifies that the original source of the review is Google. My wife and I had a consultancy call with Chris to go through our plans for a two story extension. Chris was very helpful and provided very good advice on our extension plans. He also talked us through how the process would work from planning to building including estimates on costs and expected timeline to completion. Would highly recommend.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Approval Rate
A house extension gives you the room you need without the upheaval of moving, paying stamp duty or starting again in a new area.
Whether you need house extension plans for a bigger kitchen, extra bedrooms or open plan living, you stay where you are and shape a home that truly works for your family across Salford, Bolton and Greater Manchester
When Plans2Extend manage your extension plans, you get:
A professionally designed house extension in Manchester that fits your lifestyle, your budget and your family. See our completed extension projects across Greater Manchester.
On every extension that passes our feasibility check. If the council refuses your application, we revise your extension plans, resubmit and monitor at no extra cost. See how our planning process works
From house extension designs and planning permission through to Building Control and final sign-off. View our extension gallery to see real projects we have completed across Greater Manchester.
Planning a house extension feels confusing and expensive when you don’t know what to do next. Quotes are vague, architects and builders want fees before answering your questions, and you’re left wondering if your next step will cost you thousands.
We’ve spent 12 years removing that confusion and risk from the entire process, from your first quote to build-ready extension plans.
Our expert team has guided over 500 North West families through every stage: delivering first drawings, securing planning permission, clarifying costs, and managing building control.
We guarantee approval, keep projects on track, and guide you through each step so you never waste money on delays, rejections, or cowboy builders.
Your House Extension Journey In Four Simple Steps
Every extension follows the same proven path: four clear stages managed by one expert team, so you always know what’s happening and what comes next.
We discuss your ideas, assess what's possible, and walk you through the entire process before you spend a penny.
You'll know what you can build, what it costs, and whether approval can be guaranteed, with nothing to lose and a clear step forward.
We visit your home, measure your space, and deliver clear, detailed drawings within 28 days, guaranteed.
You'll see exactly what your extension will look like and how it works for your family before committing to the next stage.
We prepare and submit everything to your local council, avoiding the mistakes that trigger rejections.
We handle objections and guarantee approval. If refused, we revise your extension plans, resubmit the application, and monitor it through to approval at no extra cost from us.
We handle the technical side that trips up most projects: structural calculations, technical drawings, Building Control submissions, and party wall notices.
Everything meets or exceeds regulations and passes inspections first time.
Your builder gets clear, compliant plans they can follow, and if they need clarification, we’re here to help so your build is always on track.
Once your house extension plans are approved, you need a builder you can trust. Too many families pick the wrong one, the work isn’t compliant, corners get cut, and they never get their final certificate.
When they come to sell, they discover their extension has slashed the property value while the cowboy builder has vanished with their money.
We prevent that from happening to you.
After securing your planning and Building Control approval, we manage the entire build for you. You get vetted builders, accurate estimates, and the choice of who to meet. Your quotes are locked in, a legal agreement protects you, and we attend before and after every Building Control inspection to ensure the work is compliant and high-quality.
Your house extension gets built properly, adds value, and lets you avoid the headaches when you come to sell.
Most families waste months waiting for their house extension drawings. Get your complete first drafts within 28 working days, guaranteed to keep your project moving forward with confidence and momentum.
Vague drawings cause delays, mistakes, and unexpected costs on-site. Our detailed extension plans include every specification your builder needs, so the work gets executed properly, and your build runs smoothly without costly interruptions.
Vague drawings cause delays, mistakes, and unexpected costs on-site. Our detailed plans include every specification your builder needs, so the work gets executed properly, and your build runs smoothly without costly interruptions.
Rejected applications cost thousands and leave you back at square one. We guarantee planning approval on every house extension that passes our feasibility check. During your free discovery call, we’ll assess your project and confirm if approval can be guaranteed. If refused, we revise your extension plans and resubmit for free.
When life grows, the walls need to as well. We design single storey extensions and double storey extensions that turn cramped spaces into bright, open areas where your family can breathe.
You’ll get everything handled from planning approval to build-ready house extension plans, so you get the room you need without the stress.
Most lofts and garages sit unused when they could be livable rooms. Turn your unused space into the extra room you need, with loft extension plans drawn up and approved, without needing to move or sacrifice your existing home.
We handle the entire process, guarantee your planning approval, and make sure your conversion adds genuine value to your property.
Awkward layouts don’t fix themselves. We redesign and reconfigure existing spaces, knocking through walls, opening up kitchens, and creating room that suits how you live.
Whether it’s a tired home or a hospitality venue, you’ll benefit from over a decade of experience turning outdated spaces into functional, beautiful environments.
Create your own escape. Whether it’s a quiet home office, a studio, or a space to entertain, we design custom outbuildings that give you a dedicated room for work, hobbies, or relaxation.
Fully approved, professionally designed, and built to add value to your property.
Starting a business or changing how you use your property? We handle the red tape: Change of Use applications, HMO conversions, and full planning permission for new builds.
You focus on your business while we handle councils and paperwork, so you can open your doors faster without the delays or headaches.
We’ve secured planning approval on 400+ house extensions across Greater Manchester, with a 94% success rate, because we understand what your local council will and won’t accept.
That’s why we back every project with our planning approval guarantee.
If the council refuses your application, we revise your extension plans, resubmit, and monitor the application at no extra cost to you. Your house extension is designed to meet planning requirements from the start, so you’re not left wondering if it’ll be approved or how much more you’ll need to spend.
We also deliver your first draft drawings within 28 working days of survey, guaranteed. Most homeowners wait months just to see what their house extension looks like, losing momentum.
Our extension plans include crystal-clear detail, so your builder knows exactly what to build and you know exactly what you’re getting. Nothing moves forward until you’re happy with the design.
We also guarantee builder assistance. If your builder has questions, we offer consultations so the work gets done right without confusion or delays.
We get asked this question all the time. That’s why we built our quote generator to give you an instant idea of how much it will cost to plan, design, and build your new dream extension.
Not always — some household extensions qualify under Permitted Development, meaning no formal planning permission for extension is needed. Plans2Extend, a trusted home extension company in Manchester, confirms this free on a discovery call.
Permitted development extensions allow you to build without full planning permission — within government size limits. Flats, listed buildings, and conservation areas are usually excluded. Plans2Extend’s architectural design team checks your eligibility upfront.
Extension plans Manchester typically take 4–6 months from survey to approval. Plans2Extend delivers first plans for extension within 28 working days — and resubmits free if the council refuses.
Planning consultants Manchester like Plans2Extend manage your full planning application for extension drawings, council submissions, and objection handling — with a 94% approval rate across 400+ household extensions.
Yes — a well-designed home extension typically adds more value than it costs to build. Proper architectural design and planning permission for extension are key. Plans2Extend provides all compliance documentation as standard.
Not always — some household extensions qualify under Permitted Development, meaning no planning permission for extension is needed. It depends on your property type, size, and location. Plans2Extend, a trusted home extension company in Manchester, assesses this for free on a discovery call so you know exactly where you stand before spending a penny.
Permitted development extensions allow certain home extensions to be built without full planning permission for extensions, within government size limits. Rules vary by property — flats, listed buildings, and conservation areas are usually excluded. Plans2Extend’s architectural design team checks your eligibility upfront, so your extension plans are right first time.
From survey to planning-approved extension plans Manchester typically takes 4–6 months. Plans2Extend delivers first drawings within 28 working days, and planning extensions take 8–12 weeks with the council. Their planning guarantee means if refused, they revise and resubmit your plans for extension at no extra cost.
Planning consultants Manchester like Plans2Extend manage your full planning application for extension — drawings, forms, council submissions, and objection handling. They design your household extension to meet what the local council expects, dramatically reducing rejection risk. Over 400 applications submitted across Greater Manchester with a 94% approval rate.
Yes — a well-designed home extension typically adds more value than it costs to build, especially across Greater Manchester where space is at a premium. The key is proper architectural design, planning permission for extension, and Building Control sign-off. Plans2Extend provides all compliance documentation so your household extension adds proven, sellable value when you move.
We can’t control material prices or market fluctuations, but we protect you by giving realistic cost estimates upfront based on current market rates. You’ll know what to expect before committing to anything.
If you choose our optional build phase management, you get fixed pricing with your builder before work starts and set up a legal contract that protects you from surprise costs. You know what you’re paying, what’s included, and what happens if things change. No builder can walk away with your money or hit you with inflated bills halfway through.