Architectural Drawings: Questions Answered.

TM Architectural Designs Ltd works to fixed fees: structural calculations from £550, planning drawings from £1,100, a full package at £1,650, and new build packages from £2,200. The price is confirmed in writing before work begins and includes the revisions needed to reach sign-off.

If you are changing the footprint or external appearance, you need planning drawings. If you are removing structure or inserting a beam, you need structural calculations. Most extension and loft projects need both, which is what the £1,650 full package covers.

No. The quoted fee is fixed and revisions are included. The only additional costs are your local authority’s own planning application fee and building control charge, which are payable directly to the council.

Standard projects are delivered within two weeks of us receiving your measurements. Where a project is unusually complex we confirm a longer timescale at quotation stage rather than allowing a deadline to slip.

The delay in conventional practice is usually scheduling — arranging site visits, travel and appointments. Because our survey stage is carried out remotely using client-captured measurements and 3D room scanning, that stage is removed entirely, typically saving around eight weeks and £2,000–£4,000.

We work from dimensional data you capture yourself. The TM Measure app uses your device camera and, on supported iPhones and iPads, LiDAR-assisted scanning to record room dimensions; you can alternatively supply existing estate plans or previous architectural drawings. This remote method underpins a 98% first-time approval rate across more than 150 completed projects.

Room dimensions (width, length and height), photographs of the relevant elevations, and any drawings you already hold for the property. If you are unsure, contact us before committing — we confirm exactly what is required at quotation stage.

Yes. Drawings are produced to meet local authority planning requirements and the Building Regulations, with structural calculations prepared to Eurocode and British Standard methods and signed by a qualified engineer. The difference is delivery method, not technical standard.

Planning permission governs whether a change to a property is acceptable in principle — its size, siting and appearance. Building regulations govern whether the works are structurally sound and safely constructed. They are separate consents and many projects require both.

Single-storey rear extensions, many loft conversions and modest outbuildings often fall within permitted development, subject to strict size and height limits. Side extensions, two-storey extensions and works to flats generally require a full planning application. Conservation area status, listed building status and Article 4 directions all reduce or remove permitted development rights.

Yes. Calculations are prepared to Eurocode and British Standard methods, signed by a qualified engineer and presented in a form building control can check, with each limit-state check — bending, shear, deflection, buckling and bearing — shown in full.

Yes. TM Architectural Designs Ltd operates UK-wide, with a concentration of residential work across Surrey, South London and Suffolk. Because the service is delivered entirely online, location affects neither our fee nor our two-week turnaround.

Residential work throughout: single and double-storey extensions, side returns and wrap-arounds, loft conversions of all five types, garage conversions, structural alterations and new build dwellings.

Four stages: you send project details and receive a fixed quotation; you capture measurements; we produce and coordinate the drawings; you review online and we issue the final PDFs. The whole process is remote and typically completes within two weeks of measurement.

As final PDFs by email, formatted to the submission standards of your local planning authority or building control body, and suitable for issuing to builders for pricing.

Send your project details through the enquiry form or email inquiries@tmdesignsltd.com. Quotations are free, issued within 24 hours, and carry no obligation.