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Free 2026 London Planning ReportPlanning Drawings in Lewisham

Single-storey rear extension onto a London garden, a common Lewisham terraced-house project in Brockley or Hither Green
Lewisham · London

Planning Drawings in Lewisham

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

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Lewisham is terraced South-East London: the Victorian and Edwardian streets of Brockley, Forest Hill and Hither Green make side-return extensions and hip-to-gable loft conversions the borough's signature projects, giving way to the Georgian-fringed heath at Blackheath, the historic Deptford High Street and the post-war estates around Catford and central Lewisham. The right route depends heavily on the street — a rear extension in Hither Green is a very different application from a roof alteration in the Brockley conservation area.

Design control shapes much of the borough. Conservation areas at Blackheath, Brockley, Telegraph Hill, Deptford High Street, Ladywell and Lee Manor govern materials, rooflines and front elevations, while the dense terraced streets bring side-return and rear-depth control and party-wall sensitivity between neighbours. Sloping sites and long views across the Honor Oak and Forest Hill ridges further shape extension design, and a borough-wide Article 4 direction removes permitted development for change of use to an HMO (C3 to C4) anywhere in the borough — though it leaves standard family extensions and lofts unaffected.

We prepare Lewisham planning drawings to the council's householder and validation standards, checking permitted development eligibility for terraces and semis first and designing to conservation-area expectations where Blackheath, Brockley or Telegraph Hill applies. It is the same council-accepted drawing set an architect would produce, usually at around 30% less, with a fixed fee agreed up front, a roughly seven-day drawing turnaround and free redraws until the London Borough of Lewisham approves. Most householder applications are decided within the statutory eight-week period once validated, so we draw to the validation checklist from the outset to avoid the queries that cause most delay.

Single-storey rear extension onto a London garden, a common Lewisham terraced-house project in Brockley or Hither Green
Isometric illustration of a Lewisham home extension design
Proposed floor plan
Lewisham

Planning in Lewisham: what to know before you apply

Lewisham operates a borough-wide Article 4 direction removing permitted development rights for HMO conversions, and controls design within its conservation areas — Blackheath, Brockley and Telegraph Hill in particular. For the borough's abundant terraces, side-returns and hip-to-gable lofts frequently qualify as permitted development; we confirm the designation for your street before drawing.

Typical Lewisham housing stock

Victorian and Edwardian terraces across Brockley, Forest Hill and Hither Green, Georgian and early-Victorian housing around Blackheath and Deptford, and post-war estate housing through Catford and central Lewisham.

Areas we regularly draw for in Lewisham

Lewisham · Deptford · Brockley · Forest Hill · Catford · Sydenham · Hither Green · Blackheath

What the numbers say about Lewisham planning decisions

These are London Borough of Lewisham’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.

Householder decisions in Lewisham

Every householder application London Borough of Lewisham decided over the four quarters to 2026 Q1.

Householder applications decided637
Granted576
Refused61
GrantedEngland average 90%90%
Of which prior approvalsPrior approvals are granted far more often than full applications, so this share moves the rate above27%
Decided within 8 weeksExcludes prior approvals. England average 93%95%

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

Permitted development in Lewisham

Larger householder extensions put to London Borough of Lewisham under the prior-approval route, and lawful-development certificates decided, over eight quarters.

Prior approval not requiredWent ahead without a full application103
Prior approval granted4
Prior approval refused71
Granted where a decision was neededFrom 75 determinations5%
Building upwards, prior approval refused1
Certificates of lawful development decided752

Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-08-16.

Designated areas in Lewisham

Conservation areas London Borough of Lewisham has published to the national register, and when it designated them. Where a borough has supplied no Article 4 data the row is omitted rather than shown as zero.

Conservation areas on the register30
Article 4 directions in force57

Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-08-16.

If London Borough of Lewisham refuses: appeal outcomes

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

Appeals determined427
Allowed115
Dismissed312
Householder appeals allowedFrom 164 householder appeals. England average 36%30%

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

Planning Drawings for Lewisham homes: the package and the process

A planning set is judged as a set, not as individual sheets. Every existing drawing needs its proposed counterpart at the same scale and orientation so the officer can read the change at a glance, each sheet needs its own number, title, scale bar and north point, and the whole package needs to survive being printed at A3 without a dimension becoming illegible.

We draw to the conventions validation teams expect: plans and elevations at 1:100 or 1:50, a location plan at 1:1250 with the site edged red, a block plan at 1:500, and sections cut where the change in level or roof form actually happens rather than where they are easiest to draw.

The drawing list itself changes with the building. A detached house needs four elevations; a mid-terrace needs two plus a section through the party walls to show what is not visible from outside. Getting that list right at the start is what stops a validation officer asking for a sheet three weeks in.

What is included in a planning drawing set?

A council will only validate an application that contains the right drawings at the right scale. Our standard planning set covers everything a London validation team expects.

  • Site location plan (1:1250) and block plan (1:500)
  • Existing floor plans, elevations and sections
  • Proposed floor plans, elevations and sections
  • Roof plans where relevant, with heights and materials annotated
  • A design and access or heritage statement where the borough requires one

How are planning drawings different from building regulations drawings?

Planning drawings show what the building will look like and how it sits in its context. Building regulations drawings show how it will be built safely — structure, insulation, fire escape and drainage. Most projects need both; our Complete package covers the two together with structural calculations coordinated in-house.

How quickly can you produce planning drawings in London?

After a laser survey, a standard householder set is typically ready within 7 days. We review every drawing against your borough's validation checklist before it reaches a planner's desk, which is why our first-time approval rate sits around 96%.

What a London planning drawing set contains
DrawingTypical scaleWhat it shows
Site location plan1:1250The property in its street context, site edged red
Block plan1:500The building's footprint and position in the plot
Floor plans (existing & proposed)1:100 / 1:50Room layout, walls, openings and the proposed changes
Elevations (existing & proposed)1:100 / 1:50Each face of the building and how it changes
Sections1:100 / 1:50A cut through showing heights, levels and roof form
Sheet from a planning drawings package prepared for a Lewisham property, drawn to London Borough of Lewisham validation standards
A sheet from the planning drawings package we submit to London Borough of Lewisham.
FAQ

Planning Drawings in Lewisham — FAQs

What scale should London planning drawings be?+
Site location plans are 1:1250, block plans 1:500, and floor plans, elevations and sections are typically 1:100 or 1:50. We format every drawing to your specific borough's requirements.
Do I need an architect to produce planning drawings?+
No. MCIAT-chartered architectural technologists produce the same council-accepted planning drawings with the same professional accountability, and councils assess the drawings, not the author's job title.
How many revisions are included in the fee?+
All of them. The fee is fixed and we redraw free until your council approves — revisions requested by a planning officer never cost you extra.
Can you draw from my existing plans?+
We can work from existing measured drawings, but for accuracy we usually carry out a laser survey so the proposed set matches your property exactly.
Do planning drawings guarantee approval?+
No drawing can guarantee a decision, but drawing to the local plan and validation checklist maximises your odds — and we redraw free until approval.
Do I need planning permission for a side-return extension in Lewisham?+
On the Victorian and Edwardian terraces of Brockley, Forest Hill and Hither Green 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 Blackheath, Brockley and Telegraph Hill restrict this. We check your street's designation first and can confirm permitted development with a Lawful Development Certificate where it qualifies.
What does Lewisham's borough-wide HMO Article 4 direction affect?+
Lewisham 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 on a route.
Can I convert the loft on my Lewisham terrace?+
Usually, yes. The terraces of Brockley, Forest Hill and Hither Green suit hip-to-gable and dormer loft conversions, which frequently qualify as permitted development within the volume limits. Outside the conservation areas this is often the quickest route. We confirm eligibility against those limits and any designation, then produce the planning and building-regulations drawings.
How long does Lewisham Council take to decide?+
Lewisham 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 validation checklist to keep them moving.
How much do planning drawings cost in Lewisham?+
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 Lewisham approves. A side-return, a loft and a conservation-area scheme differ in complexity, so we quote once we understand your street and project rather than charging by the hour.
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