
Flat Conversion Drawings in Southgate Green N14
Fixed-fee, MCIAT-chartered flat conversion drawings for Southgate Green (N14) homeowners — London Borough of Enfield validation and local constraints handled from the start.
Southgate (N14) is anchored by Southgate Green, a historic green ringed by Georgian and Victorian houses and more than thirty listed structures, with Edwardian and interwar semis on the surrounding streets where most of our extension and loft work sits.
Because the Article 4(2) directions made in 2009 remove permitted-development rights on frontages inside the conservation area, we check the mapped boundary and listing status before advising whether a scheme is genuinely PD or needs a full application with heritage justification.


Planning in Southgate Green (N14): what to know before you apply
Most Southgate extensions run as householder applications to Enfield, with a heritage statement where the property is inside the Southgate Green Conservation Area. The 2009 Article 4(2) directions remove PD rights on street-facing elevations, and listed-building consent can be required near the green, so we confirm boundary and listing status first.
Typical Southgate Green housing stock
A historic green fringed by Georgian and early Victorian houses and over thirty listed buildings and structures, giving way to Edwardian and interwar semis and villas on the surrounding N14 streets around Conway Road.
Streets we regularly draw for in Southgate Green
The Green · Conway Road · Waterfall Road · Ulleswater Road
Flat Conversion Drawings for Southgate Green (N14) homes: the package and the process
Every flat conversion drawings we prepare for an Southgate Green property is drawn to London Borough of Enfield’s validation standards and tuned to the N14 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.
Converting a house into flats is one of the few residential projects in London that always needs planning permission, whatever the size of the property or the number of units created. Splitting a single dwelling into two or more self-contained homes is treated as development regardless of whether any external work is proposed, because the change affects how the building is used and how many households occupy it.
DrawingsDirect draws house-to-flats conversions from the first survey through to a submission-ready planning and building-regulations package. Sound insulation between units, separate escape routes, individual services and London's minimum space standards are designed in from the layout stage, not retrofitted once the council asks for them — which is a large part of why our schemes are approved first time.
Do I need planning permission to convert a house into flats?
Yes, always. Converting a single dwelling into two or more self-contained flats is a change from one home to several, and that subdivision is treated as development requiring a full planning application — there is no permitted development route that allows it, regardless of the property's size or whether the exterior changes at all. The application has to demonstrate that each flat meets space, layout, amenity and parking standards in its own right, not just that the building as a whole is being used sensibly.
Boroughs also weigh the loss of a family-sized house against their local housing policy, since converting a larger house into several flats reduces the stock of homes suited to families even as it adds smaller units. We take that policy context into account when advising on layout and unit numbers, rather than simply maximising the number of flats the floor area could technically support.
What sound insulation is required between flats?
Part E of the building regulations sets minimum sound insulation standards for the walls and floors separating flats, covering both airborne and impact sound. Where an existing house is subdivided, the drawings specify how the party floors and walls between units will be upgraded — additional layers, resilient bars, or a floating floor — and pre-completion sound testing is normally required before the flats can be signed off. Getting this detail right on the drawings from the outset matters, because retrofitting sound insulation after a failed test usually means taking up a finished floor or ceiling that has already been decorated.
| Conversion | Typical scope | Route | Fee from |
|---|---|---|---|
| House to two self-contained flats | Vertical split, separate or shared entrance | Full planning plus building regulations | £1,600 |
| House to three or more flats | Multiple units, fire strategy required | Full planning plus building regs plus structural | £2,400 |
| Flat conversion with a side or rear extension | Additional floor area added to create compliant units | Full planning plus structural calculations | £2,800 |
Flat Conversion Drawings in Southgate Green N14 — FAQs
Do I need planning permission to convert a house into flats?+
How much do flat conversion drawings cost in London?+
What sound insulation is required between flats?+
Does each flat need a separate fire escape?+
What is the minimum size for a flat in London?+
Do I need planning permission for a loft or extension in Enfield?+
How does green-belt land affect my Enfield project?+
What does Enfield's borough-wide HMO Article 4 direction affect?+
How long does Enfield Council take to decide?+
How much do planning drawings cost in Enfield?+
Get your free Southgate Green planning assessment
Tell us your Southgate Green (N14) address and ambition — we'll confirm feasibility, local constraints and a fixed fee within one working day.