Services / Loft conversions
Loft conversions
Drawings for loft conversions of every type, with the stair, headroom and fire escape route worked out from the start.
- FreeInitial consultationA conversation about your project, and a first view of what's possible, before any fee is agreed.
- FixedFee for each stageEvery stage is priced in writing before it starts. No hourly billing.
- 3DSee the design firstYour design is shown in 3D before it's submitted, while changes are still easy.
- FreeResubmissionIf planning is refused, we revise and resubmit at no extra design fee. Conditions
What we draw
Rear dormer
Full head height across most of the room. Often permitted development on houses.
L-shaped dormer
Dormers on the main roof and the back addition of a Victorian terrace, usually a bedroom and en-suite.
Hip-to-gable
For semis and end-of-terraces, building up the sloping side roof to make room for the stair.
Mansard
The most space, but nearly always needs planning permission.
Planning drawings
What's included
Extensions, loft conversions, porches and outbuildings that need planning permission or a lawful development certificate.
- Free initial consultation
- Measured survey of your home
- Existing plans and elevations
- Proposed design in 3D, with up to two rounds of changes
- Application prepared, submitted and managed to a decision
- Free resubmission if refused (conditions apply)
Before you start
What we need, and what sits outside our fee
- From you: the property address, a few photos, and any existing drawings, planning approvals or surveys you have. We arrange the measured survey with you.
- Not in our fee: council planning and building control fees, and specialist reports a council asks for, such as a tree survey or flood risk assessment, unless your fee proposal lists them.
- Your fee proposal sets out exactly what is included for your project before any work starts.
- Want it built too? Green Code Developers, the group's construction company, can build it under a separate contract, with one project lead throughout. How design and build works.
Timescales
How long it takes
We give you a timetable for our drawings in your fee proposal. Council and building control timings are the statutory or target periods and start once an application is validated.
- Lawful development certificate
- Councils aim to decide within 8 weeks
- Planning decision, where permission is needed
- Target of 8 weeks after validation
- Building regulations full plans
- 5 weeks, or up to 2 months if you agree
- Party wall notices
- 2 months for work to a party wall
Projects
Loft conversions we have designed
Common questions
Is my loft tall enough?
The usual first check is about 2.2 metres from the top of the ceiling joists to the underside of the ridge. We measure it at the survey.
Do I need planning permission?
Many houses can convert under permitted development, up to 40 cubic metres for terraced houses and 50 for semi-detached and detached houses. Flats, conservation areas and most mansards need permission.
What about fire safety?
A loft conversion usually makes the existing stair a protected escape route, with fire doors and linked smoke alarms. It's all shown on the building regulations drawings.
Other services
- Free planning check
- House extensions
- Upward extensions
- Renovations and internal alterations
- Basement conversions
- Planning permission
- Lawful development certificates
- Pre-application advice
- Building regulations drawings
- Building control applications
- Structural calculations
- Structural surveys and letters of comfort
- Flat conversions
- Lease plans and licence to alter
- Change of use
- New builds
- Interior design
- 3D visualisation
- Energy and retrofit
- Energy Performance Certificates (EPC)
- Accessible home adaptations
- Commercial fit-outs and shopfronts
- Design consultations
- Party wall surveys
- Build over agreements and drainage
- Planning reports and statements
- Amendments, conditions and regularisation
- Planning appeals
- Conservation areas and listed buildings
- Community Infrastructure Levy (CIL)
- HMO planning and licensing
- Feasibility and site checks
- Measured surveys
- Building surveys
- Drawing reviews and second opinions
- Location and block plans
- Tender and construction support
- Principal designer (CDM and building regulations)
- Cost management
- Project management
- Contract administration
- Design and build
- Turnkey projects
- Landscape design
Where we work
Loft conversions across London
Local planning points for the boroughs closest to our Cricklewood studio: Ealing, Harrow, Brent, Hillingdon, Hounslow, Haringey, Enfield, Barnet, Camden, Westminster, Hammersmith and Fulham, Kensington and Chelsea. See all 33 boroughs.