Every successful project begins with an accurate understanding of the existing property. We carry out a detailed measured survey and produce clear, scaled floor plans and elevations that form the foundation of your design. Recording the building correctly from the outset helps prevent costly errors, supports accurate planning and allows builders to price the proposed work with greater confidence.
★★★★★5.0· 30 Google reviewsWhat we do
Measured on site and drawn to scale, so your starting drawings reflect the real building rather than an approximate sketch.
Concept, planning and building-regulations drawings all build on these existing drawings, so a clean, accurate base saves time and rework later.
Real dimensions mean contractors can quote against what's actually there, reducing surprises and mid-project cost changes.
Openings, levels, wall positions and key features are recorded properly, so awkward older homes are designed around reality, not assumptions.
Case studies
Real SC Design Wirral projects of this type — the brief, the design response and the drawings prepared.

Port Sunlight · Measured survey & listed building consent
In planningA detailed measured survey recording a listed Port Sunlight property, forming the basis of a Listed Building Consent application.
Read case study
Design visualisationNorth West · Commercial fit-out
CompletedA bright, accessible pharmacy fit-out within a retail parade.
Read case studyA measured survey records the property as it physically exists. On site we take room-by-room dimensions, wall thicknesses, the position and size of windows and doors, ceiling and floor-to-floor heights, and changes in level between rooms or across a sloping plot.
We also note the features that shape a design — chimney breasts, staircases, structural openings, visible services and anything that affects how a new layout can work. For external work we measure the relevant faces of the building so the elevations are accurate.
The aim is simple: capture enough, accurately enough, that nobody designing or pricing from the drawings later has to guess.
We turn the survey into a clean set of scaled drawings of how the property is now — existing floor plans of the areas your project affects, plus existing elevations of the outside.
These are normally supplied as PDFs you can share easily, and as DWG/CAD files where a structural engineer or other party needs to work in the same drawings.
This pack becomes the shared reference point for everyone involved, so your design, your builder's quote and any approvals all start from the same accurate information.
It's tempting to skip straight to ideas, but a design drawn on inaccurate base information is risky — a wall that's 200mm off can change whether a layout fits, what a beam needs to span, or how an extension meets the existing roof.
Accurate existing drawings remove that risk early. They let us develop a proposed design with confidence, help builders price against reality, and give planning and building-control submissions a credible, consistent foundation.
For most projects we'd recommend starting here, then moving into concept and design once the base drawings are in place.
You do not need a full brief or drawings to get started. Send your name and one way to contact you — the rest is optional, and you can share more whenever it suits you.
Not sure yet? That's fine — send what you have and Sean will guide you on the rest. Photos can follow by WhatsApp or email whenever you're ready.
Questions
Explore what's possible with expert design insight and feasibility advice — helping you make informed decisions before committing.
Bespoke house extensions designed to enhance space, flow and property value — with drawings fully prepared for planning and construction.
Clear, policy-aware drawings with expert guidance to give your planning application the best chance of approval.
Measured Surveys for homeowners across Wirral, including:
All you need to start is your name and one way to contact you. A short description, postcode or a few photos help if you have them — but they're not required.
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