
Planning Drawings in Sidcup DA15
Fixed-fee, MCIAT-chartered planning drawings for Sidcup (DA15) homeowners — London Borough of Bexley validation and local constraints handled from the start.
Sidcup's DA15 stretches north and west from the town toward Blackfen, Lamorbey and Longlands, mixing broad inter-war suburban avenues with older hamlets along Halfway Street and Burnt Oak Lane. Side-return, rear and loft extensions on the 1930s semis are the everyday work, but two designated conservation areas change the rules on specific streets.
The Halfway Street Conservation Area, designated in 1985, protects some of the oldest cottages in the borough around Holy Trinity Church, while the Longlands Road Conservation Area of 1992 guards an almost unaltered inter-war estate. Both carry Article 4 Directions, so alterations that are automatic elsewhere in DA15 need a full application within their boundaries.


Planning in Sidcup (DA15): what to know before you apply
Within the Halfway Street and Longlands Road conservation areas the Article 4 Directions withdraw permitted development for elevation, roof, window and front-boundary changes, so alterations that are automatic on nearby 1930s streets need a householder application here. Elsewhere in DA15 — the wider Blackfen, Lamorbey and Longlands suburbs — rear and loft extensions on the inter-war semis commonly remain permitted development, subject to the usual size and height limits.
Typical Sidcup housing stock
Sidcup's DA15 stock runs from some of the oldest houses in the borough — the 17th- and 18th-century cottages lining Halfway Street and Burnt Oak Lane — to the almost unaltered inter-war semi-detached estate of Longlands Road, with broad Edwardian and 1930s suburban avenues around Blackfen and Lamorbey in between.
Streets we regularly draw for in Sidcup
Halfway Street · Burnt Oak Lane · Longlands Road · Blackfen Road
Planning Drawings for Sidcup (DA15) homes: the package and the process
Every planning drawings we prepare for an Sidcup property is drawn to London Borough of Bexley’s validation standards and tuned to the DA15 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.
Planning drawings are the scale drawings a London council uses to judge your application: existing and proposed floor plans, elevations, sections and site plans that show the design, scale and neighbour impact of your project. DrawingsDirect produces complete, validation-ready planning drawing sets for extensions, lofts and conversions across London.
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.
| Drawing | Typical scale | What it shows |
|---|---|---|
| Site location plan | 1:1250 | The property in its street context, site edged red |
| Block plan | 1:500 | The building's footprint and position in the plot |
| Floor plans (existing & proposed) | 1:100 / 1:50 | Room layout, walls, openings and the proposed changes |
| Elevations (existing & proposed) | 1:100 / 1:50 | Each face of the building and how it changes |
| Sections | 1:100 / 1:50 | A cut through showing heights, levels and roof form |
Planning Drawings in Sidcup DA15 — FAQs
What scale should London planning drawings be?+
Do I need an architect to produce planning drawings?+
How many revisions are included in the fee?+
Can you draw from my existing plans?+
Do planning drawings guarantee approval?+
Do I need planning permission for an extension in Bexley?+
Can I build a bigger extension because Bexley plots are larger?+
What extra control applies in Old Bexley Village or around Danson Park?+
How long does Bexley Council take to decide?+
How much do planning drawings cost in Bexley?+
Get your free Sidcup planning assessment
Tell us your Sidcup (DA15) address and ambition — we'll confirm feasibility, local constraints and a fixed fee within one working day.