Loft Conversion Plans for Planning & Building Regulations

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Because Bad Loft Plans Cost More Than Your New Roof.

We create loft drawings that councils approve and builders don’t laugh at

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Loft conversion plans? One firm says a few hundred quid, another quotes thousands — and neither makes it clear what you’re actually paying for.

Go cheap and you risk drawings your builder can’t use. Go expensive and you’re paying for stuff you’ll never need. Either way, you lose money — and often twice.

Loft Conversion Plans That Save You Stress, Delays, and Thousands of Pounds.

Too many people make loft conversions sound like rocket science. They’re not. Our plans take four simple steps, a dose of common sense, and end with your loft getting built on time and within budget. Let’s walk you through it.

Step 4

We Scan Your Home

We start with a full 3D LiDAR scan of your property — especially your loft space. Slopes, ridges, and tricky head heights are captured with millimetre accuracy, so there’s no guesswork later when it comes to fitting stairs or dormers.

Design Meeting, Same Day

Unlike online-only services — where your plans are drafted by a stranger who’s never set foot in your house — we do things differently. On the same day as your scan, you sit down in your home with the architectural designer who’ll actually be drawing your loft plans. Together, we run through stair positions, dormer options, storage, bathrooms, and fire escape routes — the details that make or break a loft conversion.

Step 3

Plans Ready in 14 Days

Ever seen drawings that look nice but fall apart once the builder checks the stairs, head heights, or steels? That’s the headache we save you from. Within two weeks, your loft drawings are finished — floor plans with stair layouts, sections with head heights, elevations for dormers or roof changes, fire safety notes, insulation build-ups, and a preliminary steel layout. Clear, compliant, and builder-ready.

Step 4

Approvals Sorted

Endless forms, vague council queries, and weeks of waiting — sound familiar? We take all of that off your hands. From Planning to Building Control, we manage the process, answer the awkward questions, and keep things on track until you’ve got the green light to start building.

Plans Approved. Clients Delighted. Google Agrees...

R
RVia Google
Review on behalf of my parents- Mr & Mrs Sparrow We were really struggling to get our Land Registry plans approved due to confusing and unhelpful advice from a solicitor. Then we spoke to Kev — and what a difference! With just one quick call, he clearly explained what needed to be done and suggested we submit both our own and our neighbour’s plans together. Thanks to his expert advice, everything was approved straight away. He completed the plans quickly, efficiently, and at a very reasonable price. No stress, no hassle — just a great service from start to finish. Absolutely brilliant. Highly recommend Kev to anyone needing Land Registry Compliant Plans.
Deni Nygate
Deni NygateVia Google
Kevin is flexible, listens to what has been asked. He is knowlegeable about ideas and suggestions and gives you leave options. The plans were clear to read and were done to a professional high standard. If you live in Essex and want a good value price then Kevin is the man to contact. My plans were submitted on Monday as the price is going out and they were done in a timely manner.
Charlotte Manson
Charlotte MansonVia Google
Kev from Surv Design was incredibly helpful when we needed land registry compliant plans drawn up for our leasehold property. After a couple of months when our buyers solicitor came back asking for revisions to be made, we received these within a couple of days. Thank you Kev for making a stressful process much easier! We are very grateful for your time and help!
Glen Carlos
Glen CarlosVia Google
Kev and the team have been amazing at working with me to ensure my planning application goes through smoothly. I live in a conservation area so it was daunting to even begin the process but Kev put me at ease straight away. Communication has been great and I would highly recommend Surv Design.
Pete Johnson
Pete JohnsonVia Google
My experience in dealing with Mr Kev Miller of Essex Architects and Party Wall Surveyors is one of thankfulness. Having discussed my problem with Kev, which he fully understood, I sent him some follow-up details which were used by him to give a quick response. I am extremely grateful for his time, knowledge and understanding in dealing with my problem.
Shouab Miah
Shouab MiahVia Google
I use them first time Mr kev Miller is the best man I ever seen and very reasonable price and very good service he handling our case smoothly he is very knowledgeable and friendly we got approved our side double extension and back 6 metre extension. Thank very much kev for your hard work.
Elizabeth Szkolny
Elizabeth SzkolnyVia Google
Excellent service from Kev and Millie at Surv Design. Would not hesitate to recommend them to anyone.
Roger Essex
Roger EssexVia Google
Straight forward talking and great communication from start to finish. Highly recommended for your project.
Included as Standard Traditional Local Architect Online-Only Architects SurvDesign
Fixed, transparent pricing Not included Included Included
Unlimited design revisions Not included Not included Included
Immediate project start Not included Included Included
3D LiDAR property scanning Not included Included Included
Local knowledge & planning expertise Included Not included Included
Meet your designer face-to-face Included Not included Included
Remote/online meetings available Not included Included Included
Council submissions handled for you Not included Not included Included
Everything under one roof (Party Wall, Land Registry, CAD) Not included Not included Included
Personal, local service Included Not included Included
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Loft Conversion Plans

“A well‑designed loft transforms unused space into bright bedrooms, bathrooms or home offices. SurvDesign prepares clear, compliant drawings for planning permission and Building Regulations, resolving head‑height, stair layout and fire strategy so your loft is approved quickly and built with confidence.”

Smarter Loft Conversion Plans

We optimise structure, stair position and dormer size to maximise usable floor area while meeting policy and neighbour amenity tests.

Loft types we design

  • Rear dormer conversions (flat‑roof or pitched)

  • Hip‑to‑gable conversions for end‑of‑terrace/semi‑detached homes

  • L‑shaped dormers for larger footprints on certain terraces

  • Mansard roof conversions (subject to policy/heritage)

  • Velux/rooflight‑only conversions where no dormer is needed

Planning vs Building Regulations drawings

  • Planning drawings demonstrate massing and appearance; Building Regulations drawings set out compliant stairs, fire protection, insulation and structure. We deliver either package or a coordinated route from concept to construction.

What Your Loft Drawing Pack Includes

Planning application drawings

Location/block plans, existing/proposed floor plans and elevations/sections with key dimensions and materials. We advise on permitted development or LDCs where applicable.

Building Regulations & construction details

GA plans/sections with stair details, u‑values, ventilation, fire protection notes, structural openings/steels and typical junction details (dormer cheek, eaves, ridge and abutments). Prepared for Building Control and contractor pricing.

Key Design Rules for Lofts

Head‑height & staircase compliance

Location/block plans, existing/proposed floor plans and elevations/sections with key dimensions and materials. We advise on permitted development or LDCs where applicable.

Fire safety & escape strategy

We consider protected routes, FD30 doors, escape windows where allowed, smoke/heat alarms and enhanced detection to satisfy Building Regulations.

Dormer size, outlook & overlooking

Dormer massing is balanced to maintain neighbour amenity and meet daylight/sunlight/overlooking guidance.

Structure, insulation & services

We coordinate steels, trimming to openings, drainage and MEP routing. Insulation build‑ups address thermal bridging and airtightness.

Our Process for Loft Conversions

Briefing & measured survey

We capture your goals, measure accurately and confirm scope, outputs and timelines.

Design options & feedback

You’ll review optimised layouts showing stair positions, dormer forms and bathroom options before we lock the scheme.

Final drawings, approvals & party wall

We prepare the validated planning set and a coordinated Building Regs package, assist with submissions and issue drawings for party wall agreements where needed.

Why Choose SurvDesign for Loft Plans

Policy‑aware, buildable design

Designs that win approval and read clearly for contractors.

Fast turnaround & fixed pricing

Efficient workflows and transparent scopes — no surprises.

Coordination with engineers & contractors

Joined‑up information reduces site queries and keeps the build on programme.

Get a Fixed Price Quote for Your Loft Conversion Plans

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FAQs

Is my loft suitable for conversion?

We assess roof pitch, ridge height, structure and stair potential to confirm feasibility.

Will I need planning permission?

Many lofts fall under permitted development, but article directions or conservation areas may restrict works. We’ll advise the best route and whether an LDC is sensible.

Can you coordinate the steel design?

Yes — we liaise with structural engineers and integrate beam sizes and bearing details.

Can you include a bathroom in the loft?

We plan drainage runs, ventilation and headroom to suit shower/WC layouts.