Productised, fixed-fee services for homeowners and builders, plus specialist work for the harder cases. Every page shows what's included, timelines and indicative fees.
Indicative fee in two minutes. Written fixed-fee quote within 24 hours.
Planning documentation is the measured survey, existing and proposed drawings, statements and application forms your London borough needs to decide an extension, loft conversion or alteration. Magna Studio produces the full set for a fixed fee, submits it and acts as your agent until the decision. It is for homeowners across London who want a clear, low-risk route to permission rather than an open-ended design process.
A householder planning application is the full planning route for extending or altering a single house when permitted development does not apply. We prepare the drawings and statements, submit to your London borough and act as your agent until the 8-week decision. It is for homeowners whose extension, loft or alteration exceeds permitted development limits or sits in a conservation area or Article 4 area.
Read morePermitted development (PD) lets you extend or convert a house in England without planning permission, provided the work stays within set limits. A Lawful Development Certificate (LDC) is the council's written confirmation that your project qualifies. We check your PD rights, screen for Article 4 directions and conservation areas, and prepare the LDC drawings and application. It is for London homeowners who want certainty before they build.
Read moreBuilding Regulations drawings show how your extension or loft conversion will be built safely: structure, fire escape, insulation, ventilation, drainage and access. Planning decides whether you may build; this package satisfies building control and gives your builder something to price accurately. It is for London homeowners who have planning permission or an LDC and are ready to move towards construction.
Read moreThe full design and documentation package takes your London extension or loft from first idea to a set of drawings a builder can price and build from: concept design, planning or LDC application, Building Regulations drawings and tender-ready details, coordinated by one practice for one fixed fee. It is for homeowners who want a considered design and a single point of responsibility rather than separate suppliers for each stage.
Read moreA loft conversion adds a bedroom and bathroom to a London terrace or semi without losing garden. We design rear dormers, hip-to-gable, L-shaped dormer and mansard conversions, check them against the 40 m³ and 50 m³ permitted development limits, and prepare the LDC or planning application and Building Regulations drawings for a fixed fee. It is for homeowners across London who want the extra floor done lawfully and safely.
Read moreWe design and document single-storey and two-storey rear, side and wraparound extensions for London houses, from the permitted development check through LDC or planning application to Building Regulations drawings, for a fixed fee. It is for homeowners in any London borough who want a bigger kitchen, an extra bedroom or a reorganised ground floor with a clear route to permission.
Read moreWe design and document garden offices, studios, gyms and annexes for London homeowners, and we tell you at the outset whether your outbuilding fits Class E permitted development or needs a planning application. You get a fixed fee, a Lawful Development Certificate or planning submission, and Building Regulations drawings where the size or use requires them.
Read moreIf a London council has refused your application, served an enforcement notice, or you have built something without permission, we review the position honestly and take the route most likely to succeed: a householder appeal, a revised resubmission, or a retrospective planning application under Section 73A. Fixed fees, plain advice on your chances, and drawings that answer the officer's reasons directly.
Read moreClass MA lets you convert offices, shops and other Class E commercial buildings in London into homes through prior approval rather than a full planning application, provided the building and the design meet a defined list of tests. We confirm eligibility, design flats that meet the space and daylight standards, coordinate the transport, noise, contamination and flood reports, and manage the 56-day determination with the council.
Read moreA feasibility study tells you what a London site or house can realistically accommodate, what planning policy will allow, and roughly what it will cost, before you buy, borrow or brief a builder. Where the answer is uncertain, we package the options into a pre-application enquiry to the council and interpret the officer's written response for you.
Read moreIf you already have drawings for a London extension, loft or refurbishment, whether from another designer, a builder or an online service, we review them for planning risk, Building Regulations gaps and buildability and give you written feedback within five working days. It is a fixed fee for an honest second opinion before you submit, sign a contract or start on site.
Read moreWe supply London builders, contractors and design-and-build firms with planning and Building Regulations documentation that keeps projects on programme: white-label or co-branded drawings, fast fixed turnarounds, technical coordination with your engineer and building control, and repeat-client pricing. When unauthorised works turn up on site, we handle the retrospective regularisation too.
Read moreAnswer six questions and your indicative fee arrives on screen and by email. Written fixed-fee quote within 24 hours.
