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Free 2026 London Planning ReportNew Build Drawings in Brent

Victorian terrace converted into flats of the kind common across Brent's Kilburn and Willesden streets
Brent · London

New Build Drawings in Brent

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

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Brent runs from the dense Victorian and Edwardian terraces of Kilburn, Willesden and Harlesden, through the planned streets of Queen's Park, to the interwar semi-detached suburbia of Wembley, Kingsbury and Sudbury. Side-return and rear extensions and hip-to-gable loft conversions are the borough's most requested projects, and the housing character shifts noticeably across it — from party-wall-sensitive terraced grids to the consistent interwar semi character the council expects extensions to respect toward Wembley and Kingsbury. Conservation control around Queen's Park, Mapesbury and Sudbury Court, and in Roundwood, Brondesbury and Willesden Green, tightens design where it applies.

For the borough's abundant terraces and interwar semis, single-storey side-returns and hip-to-gable or dormer lofts frequently qualify as permitted development within the volume limits, so a full application isn't always needed. But Brent operates a borough-wide Article 4 direction removing permitted development for change of use to an HMO (C3 to C4), meaning any conversion to a house in multiple occupation needs a full application anywhere in the borough, and conservation areas such as Queen's Park, Mapesbury and Sudbury Court restrict what would otherwise be permitted. We take a validation-first approach, confirming the designation for your street and, where a scheme qualifies, evidencing permitted development with a Lawful Development Certificate before drawing.

We prepare Brent planning and building-regulations drawings to the council's householder and validation standards across Wembley, Willesden, Kilburn, Harlesden, Neasden and Sudbury, producing the same council-accepted drawings an architect would — usually at around 30% less. The fee is fixed and agreed before we start, drawings typically turn around in about seven days, and we redraw free until Brent approves. Most householder applications are determined within the statutory eight-week period once validated, and because the dense terraced streets are party-wall-sensitive the commonest delay is a drawing query, so a complete submission to the council's householder guidance keeps the application moving.

Victorian terrace converted into flats of the kind common across Brent's Kilburn and Willesden streets
Isometric illustration of a Brent home extension design
Proposed floor plan
Brent

Planning in Brent: what to know before you apply

Brent operates a borough-wide Article 4 direction removing permitted development rights for HMO conversions, and controls design within conservation areas such as Queen's Park, Mapesbury and Sudbury Court. For the borough's abundant terraces and interwar semis, side-returns and hip-to-gable lofts frequently qualify as permitted development — we confirm the designation for your street before drawing.

Typical Brent housing stock

Victorian and Edwardian terraces across Kilburn, Willesden and Harlesden, interwar semi-detached suburbia through Wembley, Kingsbury and Sudbury, and the distinctive planned streets of Queen's Park and the Sudbury Court estate.

Areas we regularly draw for in Brent

Wembley · Willesden · Kilburn · Harlesden · Kingsbury · Neasden · Sudbury · Queen's Park

What the numbers say about Brent planning decisions

These are London Borough of Brent’s own reported figures, published by government rather than estimated by us. They are what we design against — a borough that refuses one householder application in five needs a different drawing package from one that refuses one in twenty.

All development decided in Brent

Every planning application London Borough of Brent decided over the four quarters to 2026 Q1, not only householder work — a new dwelling is decided in this wider pool.

Applications decided1,963
Granted1,532
Refused431
GrantedAcross all development types, so it is not comparable with the householder rate78%
Householder applications within itThe rest is the pool a new dwelling is decided in924

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-08-16.

If London Borough of Brent refuses: appeal outcomes

Planning appeals against London Borough of Brent determined by the Planning Inspectorate, 2021–2026. Enforcement notices and withdrawn cases are excluded.

Appeals determined732
Allowed239
Dismissed493
Householder appeals allowedFrom 283 householder appeals. England average 36%42%

Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-08-16.

New Build Drawings for Brent 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 prepared for a Brent property, drawn to London Borough of Brent validation standards
A sheet from the new build drawings package we submit to London Borough of Brent.
FAQ

New Build Drawings in Brent — 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 a side-return extension in Brent?+
On the Victorian and Edwardian terraces of Kilburn, Willesden and Harlesden a single-storey side-return or rear extension can fall within permitted development, so a full application isn't always needed. Conservation areas such as Queen's Park and Mapesbury restrict this. We check your street's designation first and can confirm permitted development with a Lawful Development Certificate where it qualifies.
What does Brent's borough-wide HMO Article 4 direction affect?+
Brent applies a borough-wide Article 4 direction removing permitted development rights for change of use to an HMO (C3 to C4), so a conversion to a house in multiple occupation needs a full application anywhere in the borough. It doesn't affect a standard family extension or loft, but we confirm whether it applies to your intended use before advising.
Is a hip-to-gable loft conversion allowed on my Brent semi?+
Frequently, yes. The interwar semis of Wembley, Kingsbury and Sudbury suit hip-to-gable and dormer conversions, which often qualify as permitted development within the volume limits. We confirm eligibility against those limits and any conservation or Article 4 constraint, then produce the planning and building-regulations drawings.
How long does Brent Council take to decide?+
Brent determines most householder applications within the statutory eight-week period once validated; conservation cases can attract additional consultation. The dense terraced streets are party-wall-sensitive, so the commonest delay is a drawing query — we prepare submissions to the council's householder guidance to keep them moving.
How much do planning drawings cost in Brent?+
We agree a fixed fee before starting, usually around 30% below an architect's fee for the same council-accepted drawings, with free redraws until Brent approves. A side-return, a hip-to-gable loft and a conservation-area application differ in complexity, so we quote once we understand your street and project rather than by the hour.
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