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Free 2026 London Planning ReportNew Build Drawings in Rainham RM13

Rear extension drawings for a Rainham RM13 semi-detached house, London Borough of Havering
Rainham · RM13 · Havering

New Build Drawings in Rainham RM13

Fixed-fee, MCIAT-chartered new build drawings for Rainham (RM13) homeowners — London Borough of Havering validation and local constraints handled from the start.

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Rainham is an outer-east Havering neighbourhood in RM13 where a small historic village core sits within broad interwar and post-war housing estates stretching toward the marshes. The bulk of our work here is rear and side-return extensions, loft conversions and garden-facing kitchen extensions on family semis and terraces that generally fall within permitted development.

Around the Rainham Village conservation area near Rainham Hall and the church, permitted development rights are trimmed and materials matter, so we detail those schemes to the standard London Borough of Havering expects while keeping the everyday suburban streets efficient and fully compliant.

Rear extension drawings for a Rainham RM13 semi-detached house, London Borough of Havering
Isometric illustration of a Rainham RM13 home new build drawings design
Proposed floor plan
Rainham RM13

Planning in Rainham (RM13): what to know before you apply

No published householder Article 4 direction applies in Rainham; the principal constraint is the Rainham Village conservation area, and lower-lying plots near the marshes can attract flood-risk scrutiny. Most surrounding interwar and post-war houses retain normal permitted development rights.

Typical Rainham housing stock

Rainham pairs a tight historic core near Rainham Hall and the medieval church with wide belts of 1930s and post-war semi-detached and terraced housing running out toward the marshes. Most homes are unlisted family houses with generous rear gardens, well suited to rear extensions, side infills and loft conversions.

Streets we regularly draw for in Rainham

Upminster Road North · Lambs Lane South · Brookway · Elizabeth Road

What RM13 is actually built of

Measured from 361 classified residential buildings in RM13, not from a description of the area.

Rainham RM13 housing mix

Residential building form across the RM13 postcode district, from 361 classified buildings.

Attached on more than one side36%
Attached on one side49%
Detached15%
Median building footprint61 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.46
Buildings classified361

Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-08-17.

New Build Drawings for Rainham (RM13) homes: the package and the process

A new dwelling is a full application rather than a householder one, and the drawing set reflects that: site layout with levels and boundaries, floor plans and elevations for the new building, sections showing how it sits in the ground, and street-scene elevations placing it against what is already there.

Two packages follow the approval — the planning set and the construction set — and they have to stay in step. Foundation design, drainage strategy, thermal performance and fire strategy are drawn for Building Control against the same geometry that was granted permission, so the built house matches the approved one.

An infill plot is designed against its neighbours. Plot width, the building line either side, and the ridge heights next door set what the new house can be — and on a tight urban site those constraints usually shape the design more than the brief does.

Is my plot suitable for a new build in London?

A feasibility assessment looks at plot size and shape, access, existing boundary conditions, relevant planning policy for the borough, and the likely impact of a new dwelling on neighbouring properties before any design work begins. Infill plots — a gap between existing buildings on a street — and backland plots — a garden or yard site behind existing houses, reached by a shared access — each raise different issues: infill schemes are usually judged on how well they match the scale, spacing and character of the street, while backland schemes are judged heavily on overlooking, garden loss for neighbours, and whether the access arrangement is acceptable. A feasibility study gives an honest view of whether a scheme is likely to succeed before you commit to full drawings.

What does pre-application advice add to a new build project?

Pre-application advice is a formal, paid process most London boroughs offer, where planning officers give written feedback on a proposed scheme before a full application is submitted. For a new build — where the principle of development itself is often the main issue, not just the design details — this feedback can be invaluable: it surfaces concerns around density, massing, daylight and sunlight or heritage context early enough to be addressed in the drawings, rather than discovered for the first time as a refusal reason months into a full application. We prepare and submit pre-application enquiries as part of the new build service where it is likely to strengthen the eventual planning application.

How do daylight, sunlight and overlooking affect a new build design?

London boroughs assess new dwellings against their effect on the daylight and sunlight reaching neighbouring homes and gardens, commonly using the 45-degree rule as an initial check on a proposal's massing and position relative to neighbouring windows, alongside more detailed daylight and sunlight assessment on sensitive sites. Overlooking and loss of privacy from new windows, upper floors or roof terraces are assessed similarly, and often shape decisions on window placement, floor-to-floor heights and the overall footprint and massing of the new building. Designing with these constraints from the earliest sketch stage, rather than adjusting for them after a refusal, is one of the main advantages of instructing feasibility and pre-application work before a full planning set.

New build project stages
StageWhat it establishesTypical fee guide
FeasibilityWhether the plot can support a new dwelling and the likely constraintsQuoted individually, from within the £2,500 new build fee
Pre-application adviceWritten borough feedback on the scheme before a full applicationQuoted individually alongside the planning fee
Full planning drawingsThe complete drawing set submitted for planning permissionFrom £2,500
Building regs and structuralConstruction-ready drawings and calculations for buildingFrom £2,200–£3,850, quoted once planning is settled
Sheet from a new build drawings package drawn for a Rainham property in RM13, showing the existing and proposed arrangement at scale
A sheet from the new build drawings package we submit to London Borough of Havering for Rainham (RM13) properties.
FAQ

New Build Drawings in Rainham RM13 — FAQs

How much do new build drawings cost in London?+
New build drawings start from £2,500 for feasibility and a full planning drawing set on a straightforward infill or backland plot, with building regulations and structural drawings quoted separately once the planning design is agreed.
Can any garden or backland plot be built on in London?+
Not necessarily — backland and garden plots are assessed on access, overlooking, loss of garden amenity for neighbours and borough policy, and a feasibility assessment gives an honest early view of whether a scheme is likely to be supported.
Do I need pre-application advice before a full new build application?+
It is not mandatory, but for a new dwelling — where the principle of development is often the main issue — pre-application advice can surface concerns early enough to address them in the design, reducing the risk of refusal.
Do you handle building regulations and structural drawings for a new build, or only planning?+
Both — the full new build service covers planning, building regulations and structural drawings from one in-house team, so the design stays consistent from feasibility through to construction-ready drawings.
How long does a new build project take from feasibility to planning permission?+
This varies with site complexity and whether pre-application advice is sought, but a full planning application is determined within the statutory period the borough applies to the application type, once submitted via the Planning Portal.
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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