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Free 2026 London Planning ReportNew Build Drawings in Orpington BR6

Kitchen rear extension in a suburban house in Orpington BR6, London Borough of Bromley
Orpington · BR6 · Bromley

New Build Drawings in Orpington BR6

Fixed-fee, MCIAT-chartered new build drawings for Orpington (BR6) homeowners — London Borough of Bromley validation and local constraints handled from the start.

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Orpington (BR6) is mostly interwar and post-war suburbia wrapped around older cores — the Priory and Church Hill in the town centre, Broomhill to the west, and the surviving village streets of Farnborough and Chelsfield out toward the Green Belt. Extensions and loft conversions on the suburban stock are the bulk of our work here.

Four Bromley conservation areas shape planning in BR6 — Orpington Priory, Broomhill, Farnborough Village and Chelsfield — and properties within them face enhanced scrutiny on rooflines and materials, with applications there often running to ten to thirteen weeks. We check a BR6 address against these before drawing.

Kitchen rear extension in a suburban house in Orpington BR6, London Borough of Bromley
Isometric illustration of a Orpington BR6 home new build drawings design
Proposed floor plan
Orpington BR6

Planning in Orpington (BR6): what to know before you apply

Most of BR6 sits outside a conservation area and keeps permitted development rights for rear and loft work, and we have found no householder Article 4 direction here. But inside the Orpington Priory, Broomhill, Farnborough Village or Chelsfield conservation areas permitted development narrows and design scrutiny rises on rooflines and materials, and the Green Belt around Downe and Cudham brings its own limits — so we confirm the conservation-area and Green Belt position on Bromley's map first.

Typical Orpington housing stock

Interwar and post-war suburban housing across much of Orpington, wrapped around historic pockets — the Grade II* listed Priory and Church Hill core, the Broomhill area west of the town centre, and the old village streets of Farnborough and Chelsfield out toward the Green Belt.

Streets we regularly draw for in Orpington

Church Hill · Broomhill Road · Farnborough High Street · Church Road

What BR6 is actually built of

Measured from 377 classified residential buildings in BR6, not from a description of the area.

Orpington BR6 housing mix

Residential building form across the BR6 postcode district, from 377 classified buildings.

Attached on more than one side24%
Attached on one side47%
Detached29%
Median building footprint80 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.03
Buildings classified377

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 Orpington (BR6) 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 Orpington property in BR6, showing the existing and proposed arrangement at scale
A sheet from the new build drawings package we submit to London Borough of Bromley for Orpington (BR6) properties.
FAQ

New Build Drawings in Orpington BR6 — 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 Bromley?+
Bromley 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. The binding constraints are green-belt policy on outer properties and conservation control in Chislehurst, Keston and Bromley Town. We check both and can confirm permitted development with a Lawful Development Certificate.
Can I build a bigger extension because Bromley plots are larger?+
Often, yes. Bromley's generous interwar plots make substantial rear and double-storey extensions viable where an inner-London terrace could not accommodate them. The limit is usually policy rather than space — green belt restricts scale on outer properties, and conservation areas control design. We design to use the plot fully within those limits, checking permitted-development allowances for detached homes first.
How does green-belt designation affect my Bromley project?+
On green-belt properties toward Orpington, Chislehurst and the borough's 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.
How long does Bromley Council take to decide?+
Bromley determines most householder applications within the statutory eight-week period once validated. As London's largest borough by area, its casework spans suburban semis to green-belt properties, so a complete, correctly scaled submission is the best way to avoid a validation query and keep to that timescale.
How much do planning drawings cost in Bromley?+
We quote a fixed fee upfront, typically around 30% below an architect's charge for the same council-accepted drawings, with free redraws until Bromley approves. Because plots here allow larger schemes, the fee tracks the project's 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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