Services
Drawings for every stage of your project
Everything from the first feasibility check to construction, in one team. Choose what you're planning; each service explains what we do and how it's priced.

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Design and drawings
Extensions, lofts, basements, new homes and interiors, designed and drawn from survey to approval.
- House extensions Single-storey, side return, wrap-around, double-storey and porch extensions. Fixed fee, agreed upfront
- Loft conversions Rear dormer, L-shaped, hip-to-gable and mansard loft conversions. Fixed fee, agreed upfront
- Upward extensions Extra storeys and mansard roof extensions, by prior approval or planning application. Fixed fee, agreed upfront
- Renovations and internal alterations Whole-house renovations, knocked-through rooms and new layouts, with the approvals they need. Fixed fee, agreed upfront
- Basement conversions Cellar conversions and new basements, with the structure and waterproofing designed in. Fixed fee, agreed upfront
- Flat conversions Converting houses into flats, and reconfiguring existing flats. Fixed fee, agreed upfront
- Lease plans and licence to alter Land Registry lease plans and drawings for your freeholder's licence to alter. Fixed fee, agreed upfront
- New builds Individual new houses, small groups of homes and barn conversions. Fixed fee, agreed upfront
- Interior design Kitchens, bathrooms, joinery, lighting and finishes, designed with your drawings. Fixed fee, agreed upfront
- 3D visualisation Photo-real renders and walkthroughs of your design, inside and out. Fixed fee, agreed upfront
- Energy and retrofit Insulation, heat pumps and solar planned with your project, with SAP and EPC advice. Fixed fee, agreed upfront
- Energy Performance Certificates (EPC) EPCs for selling, letting and new homes, with advice on improving the rating. Fixed fee, agreed upfront
- Accessible home adaptations Ground-floor bedrooms and bathrooms, level access and grant-ready drawings. Fixed fee, agreed upfront
- Commercial fit-outs and shopfronts Shops, cafés, restaurants and small offices: layouts, approvals and shopfronts. Fixed fee, agreed upfront
- Design consultations An hour with a designer at your home or by video, with ideas and next steps. Fixed fee, agreed upfront
- Landscape design Garden and landscape plans, for planning applications or alongside your extension. Fixed fee, agreed upfront
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Planning and approvals
Applications, reports and follow-up approvals, from a first feasibility check to discharging conditions.
- Free planning check Send your address and plans; we reply with the planning position and the likely route. Fixed fee, agreed upfront
- Planning permission Householder applications, lawful development certificates, pre-application advice and appeals. Fixed fee, agreed upfront
- Lawful development certificates Certificates for permitted development extensions, lofts and outbuildings, and for existing work. Fixed fee, agreed upfront
- Pre-application advice Council feedback on your proposal before you make a full planning application. Fixed fee, agreed upfront
- Change of use Applications to change how a building is used, including prior approval routes. Fixed fee, agreed upfront
- Planning reports and statements Design and access, heritage, fire, flood, daylight and the other reports councils ask for. Fixed fee, agreed upfront
- Amendments, conditions and regularisation Non-material amendments, Section 73 variations, discharging conditions and retrospective approval. Fixed fee, agreed upfront
- Planning appeals Appeals against refusals, conditions and non-decisions, prepared and managed for you. Fixed fee, agreed upfront
- Conservation areas and listed buildings Listed building consent, conservation area applications and Article 4 alterations. Fixed fee, agreed upfront
- Community Infrastructure Levy (CIL) CIL forms, self-build and extension exemption claims, and commencement notices. Fixed fee, agreed upfront
- HMO planning and licensing HMO conversion checks, planning applications and licence drawing packs. Fixed fee, agreed upfront
- Feasibility and site checks Planning, permitted development and site checks before you buy, design or apply. Fixed fee, agreed upfront
- Location and block plans Site location and block plans to the council's requirements, ready to submit. Fixed fee, agreed upfront
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Building regulations and construction
Surveys, technical drawings and structure, then tender, project management, contract administration, design and build, or turnkey delivery.
- Building regulations drawings Construction drawings and specification for building control and for your builder. Fixed fee, agreed upfront
- Building control applications Choosing building control, submitting the application and getting to the completion certificate. Fixed fee, agreed upfront
- Structural calculations Beams, steels and foundations, designed by engineers within the Green Code group. Fixed fee, agreed upfront
- Structural surveys and letters of comfort Structural inspections, reports and letters of comfort for owners, buyers and builders. Fixed fee, agreed upfront
- Measured surveys Measured surveys, Matterport laser scans and existing drawings. Fixed fee, agreed upfront
- Building surveys Detailed condition surveys of houses and flats, before you buy or start building work. Fixed fee, agreed upfront
- Drawing reviews and second opinions An independent check of drawings, specifications or quotes before you apply or build. Fixed fee, agreed upfront
- Tender and construction support Tender packs, construction drawings, specifications and site visits. Fixed fee, agreed upfront
- Principal designer (CDM and building regulations) The principal designer role under CDM and the building regulations dutyholder rules. Fixed fee, agreed upfront
- Cost management Budgets, cost plans, tender comparisons and cost control during construction. Fixed fee, agreed upfront
- Project management One team coordinating consultants, approvals, budget and builder through to completion. Fixed fee, agreed upfront
- Contract administration The building contract run fairly: instructions, valuations, completion and defects. Fixed fee, agreed upfront
- Design and build Design and approvals by F Line Designs, then construction by Green Code Developers, with one project lead throughout. Fixed fee, agreed upfront
- Turnkey projects Everything from design to finished interiors, handed over ready to move into. Fixed fee, agreed upfront
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Neighbours and drainage
Party wall matters and Thames Water build over agreements, handled alongside your drawings.