Single-storey rear extension behind a Victorian terrace near Romford Market Place in Havering RM1

Romford · RM1 · Havering

Flat Conversion Drawings in Romford RM1

Fixed-fee, MCIAT-chartered flat conversion drawings for Romford (RM1) homeowners — London Borough of Havering validation and local constraints handled from the start.

Romford (RM1) is built around one of London's oldest chartered markets, and the Romford Conservation Area protects the Market Place and the ancient crossroads where North Street, South Street and the High Street meet. Work on or near those frontages faces conservation-area control, so we always check where a property sits against the boundary before choosing a route.

Away from the protected core the district is mostly Victorian and Edwardian terraces with inter-war housing behind, and rear and side-return extensions plus loft conversions are the common projects. Havering's householder guidance sets clear expectations for these, and preparing drawings to match is how RM1 schemes clear first time.

Proposed floor plan

Romford RM1

Romford (RM1) — planning at a glance

Council: London Borough of Havering
Postcode district: RM1
Planning portal: View the Havering planning portal
Housing stock: A historic market-town core of shops and civic buildings around Market Place, ringed by Victorian and Edwardian terraces and later inter-war housing on the residential streets running off North Street and toward Como Street.
Article 4: London Borough of Havering does not publish its Article 4 directions to the national planning register, so permitted development rights in Romford (RM1) can’t be confirmed from open data alone — we check the direction schedule with the council before recommending a route, as part of the fixed fee. Havering has no borough-wide Article 4 direction over RM1 householder work; conservation-area control around Market Place is the defining constraint.
Conservation: Romford
Sample streets: Market Place · North Street · South Street · Como Street · Junction Road
Local constraints: Romford Conservation Area covering Market Place and the ancient crossroads at North Street, South Street, High Street and Market Place — tight control over frontages, materials and shopfrontsLong medieval market plot pattern behind Market Place that constrains rear building linesDense town-centre grain where terraced side-return and rear depth are the realistic extension routes rather than large footprints

Planning in Romford (RM1): what to know before you apply

There is no borough-wide Article 4 direction affecting typical RM1 householder work, so many Romford houses retain permitted development rights for rear and loft projects. The exception is the Romford Conservation Area around Market Place, where frontage, material and shopfront changes are controlled and permitted development is curtailed.

Typical Romford housing stock

A historic market-town core of shops and civic buildings around Market Place, ringed by Victorian and Edwardian terraces and later inter-war housing on the residential streets running off North Street and toward Como Street.

Streets we regularly draw for in Romford

Market Place · North Street · South Street · Como Street · Junction Road

Flat Conversion Drawings for Romford (RM1) homes: the package and the process

Every flat conversion drawings we prepare for an Romford property is drawn to London Borough of Havering’s validation standards and tuned to the RM1 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.

House-to-flats conversion drawing packages in London
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

Also in Romford RM1

Planning Permission Planning Drawings Architectural Drawings Building Regulations Drawings Loft Conversion Drawings Flat Conversion Drawings across Havering Flat Conversion Drawings across London

FAQ

Flat Conversion Drawings in Romford RM1 — FAQs

Do I need planning permission to convert a house into flats?+

Yes, always. Subdividing a single dwelling into two or more self-contained flats is treated as development in its own right, so a full planning application is required regardless of whether the exterior of the building changes.

How much do flat conversion drawings cost in London?+

Packages start from £1,600 for converting a house into two flats and rise to around £2,800 where three or more units, structural work or an extension are involved. We agree a fixed fee once we know the scope.

What sound insulation is required between flats?+

Part E of the building regulations sets minimum airborne and impact sound standards for the floors and walls separating flats, and pre-completion sound testing is normally required before the units can be signed off.

Does each flat need a separate fire escape?+

Each flat needs its own means of escape and the building needs to be fire-compartmented between units, using fire-rated floors, walls and doors and either a protected shared stairway or separate final exits.

What is the minimum size for a flat in London?+

London applies minimum internal floor areas based on bedroom and occupancy numbers, adopted from the national space standards through the London Plan. We check every proposed flat against the relevant threshold before drawing the layout.

Do I need planning permission for an extension in Havering?+

Havering has no borough-wide Article 4 direction affecting typical householder permitted development, so its detached and semi-detached homes often keep fuller rights than inner-London terraces — larger rear and single-storey extensions can qualify. Green-belt land toward the east and conservation areas such as Upminster and Emerson Park restrict this. We check your address first and can confirm permitted development with a Lawful Development Certificate.

How does green-belt land affect my Havering project?+

On green-belt properties toward the borough's eastern and northern edges, extensions are assessed against strict limits on disproportionate additions to the original dwelling. It does not rule out an extension, but scale and siting matter and the case must be evidenced carefully. We confirm whether your property is green belt and design a scheme that stays within policy.

Can I build a bigger extension because Havering plots are larger?+

Often, yes. The generous interwar and detached plots across Hornchurch, Emerson Park and Upminster make substantial rear and double-storey extensions viable where a tight terrace could not. The limit is usually policy rather than space. We design to use the plot fully within permitted-development allowances or a well-evidenced full application.

How long does Havering Council take to decide?+

Havering determines most householder applications within the statutory eight-week period once validated; green-belt and conservation cases can involve additional consultation. A complete, correctly scaled submission is the best way to avoid a validation query — we prepare Havering drawings to the council's checklist to keep the application on track.

How much do planning drawings cost in Havering?+

We quote a fixed fee upfront, typically around 30% below an architect's charge for the same council-accepted drawings, with free redraws until Havering approves. Because plots here allow larger schemes, the fee tracks complexity — a single-storey rear differs from a double-storey or a green-belt case — and we confirm it once we understand your plans.

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