Serving Cardiff · Online
Arkiplan is an online architectural design service for Cardiff homeowners — the practical alternative to a traditional high-street architect. Planning drawings, building regs and structural work, designed with you over video and delivered at a fixed price.
All free, all online, all in about a minute — no obligation and no card needed.
Book an intro callCardiff’s housing runs from Victorian terraces in Cathays and Roath to interwar and suburban semis further out, where rear extensions and loft conversions are the most popular ways to add space.
Because Cardiff is in Wales, the Welsh planning system and separate Welsh building regulations apply. Notably, the England-only 6m/8m larger-extension scheme does not apply here, so larger rear extensions more often need a full application. We draw to Welsh standards and confirm your route up front.
Whatever your project, it is designed and submitted the same simple way — from wherever you are.
Yes. Arkiplan is an online architectural design service working across England and Wales, including Cardiff and the surrounding area. Your design is done over video, with a single 3D Home Scan of your property.
Applications in Cardiff go to Cardiff Council, under the Welsh planning system. We draw to Welsh building regulations and confirm your permitted-development position for the address.
It depends on the size and your property. Many single-storey rear extensions are permitted development, but Cardiff follows the Welsh planning rules, which differ from England — for example, there is no 6m/8m larger-extension scheme. We confirm exactly which route applies to your address before drawing anything.
We arrange one 3D Home Scan of your property to capture it accurately. Everything after that — design calls, drawings and submission — is handled remotely, so you do not need to take time off for office visits.
The route in is a Price confirmed in your proposal Deep Dive with Dave, credited in full against your design package if you go ahead. Your fixed price — with no percentage-of-build-cost fees — is tailored to your project and confirmed in writing after your Deep Dive.
Yes — we produce building regulations drawings and coordinate structural calculations to Welsh standards, and submit to building control on your behalf.
A Price confirmed in your proposal Deep Dive with Dave comes first, credited in full against your design package if you go ahead — then a fixed price tailored to your project, confirmed in writing afterwards, with the planning route confirmed for your address.
All free, all online, all in about a minute — no obligation and no card needed.
Book an intro callThis page is general information, not planning advice. Permitted development and planning rules depend on your specific property and local authority and can change. We confirm the current position for your address as part of every project.