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Rear extension opening onto a suburban garden, typical of a Bexley Bexleyheath or Sidcup family-home project
Bexley · London

New Build Drawings in Bexley

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

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Bexley is predominantly interwar suburban London: semi-detached houses dominant across Bexleyheath, Sidcup and Welling, the historic core of Old Bexley Village with its Victorian and older housing, and riverside and post-war housing running toward Erith, Belvedere and the Thames. The generous suburban plots make rear and double-storey extensions and loft conversions the borough's most requested projects, and they frequently allow larger schemes than the tight terraces of inner London could ever accommodate.

Bexley has no borough-wide Article 4 direction affecting typical householder permitted development, so its semi-detached and detached homes often keep fuller rights than inner-London terraces — larger rear and single-storey extensions can qualify without a full application. The binding constraints instead are conservation-area control in Old Bexley Village, Danson Park and the Upton area of Bexleyheath — home to William Morris's Red House — as well as Blendon, Lamorbey and Crayford Town, and the council's expectation that extensions respect the consistent interwar building line. Thames-side and flood-zone considerations apply toward Erith and the riverside. The practical limit on a Bexleyheath or Sidcup plot is usually design and amenity policy rather than available space.

We prepare Bexley planning drawings that use the available plot fully while respecting conservation and the established suburban building line, checking permitted development limits for semi-detached and detached homes first and confirming eligibility with a Lawful Development Certificate where a project qualifies. Because the borough determines most householder applications within the statutory eight-week period once validated, we prepare submissions validation-first to keep them moving. The fee is fixed and agreed up front, drawings typically follow within about seven days, and we offer free redraws until Bexley approves — the same council-accepted drawings an architect would produce, usually at around 30% less.

Rear extension opening onto a suburban garden, typical of a Bexley Bexleyheath or Sidcup family-home project
Isometric illustration of a Bexley home extension design
Proposed floor plan
Bexley

Planning in Bexley: what to know before you apply

Bexley has no borough-wide Article 4 direction affecting typical householder permitted development; the binding constraints are conservation-area control in Old Bexley Village, Danson Park and the Upton area of Bexleyheath, and the council's expectation that extensions respect the suburban building line. Thames flood-zone considerations apply toward Erith. The borough's semis often retain fuller permitted development rights than inner-London terraces.

Typical Bexley housing stock

Interwar semi-detached suburbia dominant across Bexleyheath, Sidcup and Welling, Victorian and older housing around the historic Old Bexley Village, and riverside and post-war housing toward Erith and Thamesmead.

Areas we regularly draw for in Bexley

Bexleyheath · Sidcup · Welling · Erith · Crayford · Old Bexley · Belvedere · Blackfen

New Build Drawings for Bexley homes: the package and the process

Every new build drawings we prepare for a Bexley property is drawn to London Borough of Bexley’s validation standards and tuned to the local constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

Designing a new dwelling on an infill or backland plot in London is a longer and more technically demanding journey than an extension or loft conversion — it involves establishing whether the plot can support a new home at all, securing full planning permission against a borough's density, design and amenity policies, and then producing a building regulations and structural package detailed enough to actually build from. DrawingsDirect delivers all of this as one coordinated service: feasibility, full planning drawings, building regulations drawings and structural calculations, produced in-house rather than passed between separate architects, engineers and drafters who each need briefing and coordinating separately.

London infill and backland sites bring specific challenges that a straightforward extension does not: the impact of a new dwelling on neighbouring daylight and sunlight, privacy and overlooking, the character and density of the surrounding streetscape, and access, parking and refuse arrangements for a new independent home. Getting an early, honest read on these issues — before a full application is drawn and submitted — is often the difference between a scheme that is approved and one that is refused and has to be reworked. We assess feasibility and, where useful, prepare pre-application advice before committing to a full drawing set.

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.

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
FAQ

New Build Drawings in Bexley — 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 Bexley?+
Bexley has no borough-wide Article 4 direction affecting typical householder permitted development, so its semi-detached homes often keep fuller rights than inner-London terraces — larger rear and single-storey extensions can qualify. Conservation areas such as Old Bexley Village and Danson Park, and riverside flood-zone constraints toward Erith, restrict this. We check your address first and can confirm permitted development with a Lawful Development Certificate.
Can I build a bigger extension because Bexley plots are larger?+
Often, yes. The generous interwar plots across Bexleyheath, Sidcup and Welling make substantial rear and double-storey extensions viable where a tight terrace could not. The limit is usually design and amenity policy rather than space. We design to use the plot fully within permitted-development allowances or a well-evidenced full application.
What extra control applies in Old Bexley Village or around Danson Park?+
These conservation areas carry design control over materials, rooflines and front elevations, and the Upton area of Bexleyheath includes the setting of William Morris's Red House. Permitted development is often restricted there, so we design to the area's character and prepare a full, context-led application where a standard permitted-development route doesn't apply.
How long does Bexley Council take to decide?+
Bexley determines most householder applications within the statutory eight-week period once validated; conservation cases can involve additional consultation. A complete, correctly scaled submission is the best way to avoid a validation query — we prepare Bexley drawings to the council's checklist to keep the application on track.
How much do planning drawings cost in Bexley?+
We quote a fixed fee upfront, typically around 30% below an architect's charge for the same council-accepted drawings, with free redraws until Bexley approves. Because plots here allow larger schemes, the fee tracks complexity — a single-storey rear differs from a double-storey — and we confirm it once we understand your plans.
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