Double Storey Extension Drawings in East Dulwich SE22
Fixed-fee, MCIAT-chartered double storey extension drawings for East Dulwich (SE22) homeowners — London Borough of Southwark validation and local constraints handled from the start.
East Dulwich (SE22) sits in the London Borough of Southwark, tucked between Dulwich Village, Peckham and Forest Hill. Its character comes from the tight grid of late-Victorian and Edwardian terraces — the 'Derbyshire colony' of streets off Lordship Lane, including Melbourne Grove, built in the 1870s and 1880s. Rear, side-return and loft projects on these consistent terraces are the staple here.
The Gardens conservation area lies to the north-east, off East Dulwich Road by Peckham Rye Common, and the Dulwich Village conservation area borders the district to the south, so properties near either boundary answer to heightened design scrutiny. Southwark publishes its Article 4 directions and none covers these householder streets, so many East Dulwich houses keep permitted-development rights — we confirm where an address sits relative to the conservation areas before advising.
Planning in East Dulwich (SE22): what to know before you apply
Southwark publishes its Article 4 directions and none covers the East Dulwich householder streets, so many houses retain permitted-development rights for rear and loft work. The Gardens conservation area to the north-east and the Dulwich Village conservation area to the south are the controls that matter near those boundaries, and the consistent Victorian and Edwardian terrace frontages mean dormers and elevation changes are judged against the established grain. We check an address against those designations before drawing.
Typical East Dulwich housing stock
Late-Victorian and Edwardian terraces across the 'Derbyshire colony' streets off Lordship Lane — including Melbourne Grove — with grander villas toward Dulwich Village and the houses fronting Peckham Rye.
Streets we regularly draw for in East Dulwich
Lordship Lane · Melbourne Grove · North Cross Road · Barry Road
Double Storey Extension Drawings for East Dulwich (SE22) homes: the package and the process
Every double storey extension drawings we prepare for an East Dulwich property is drawn to London Borough of Southwark’s validation standards and tuned to the SE22 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.
A double storey extension builds a second floor above a single-storey side or rear addition, typically adding a bedroom and bathroom upstairs over a widened kitchen or reception room below. Because the foundations and roof of a single-storey extension already carry most of the fixed cost of building, adding a floor on top is often the most cost-effective way to gain two rooms rather than two separate projects. The trade-off is scrutiny: a two-storey addition sits closer to eye level with neighbouring windows and gardens, so councils examine massing, roofline and boundary distance more closely than they would a single-storey extension.
DrawingsDirect draws double storey side and rear extensions for full planning and building regulations, with structural calculations for the additional floor load and foundations produced in-house by our MCIAT-chartered team, on a fixed fee. If a single storey is enough, see our Rear Extension and Side Return Extension pages, or combine both with a Wraparound if you are extending sideways as well as up.
Do I need planning permission for a double storey extension in London?
Almost always. Permitted development rights for two-storey extensions are far more restrictive than for single-storey work, particularly on how close the new structure can come to a boundary and how closely its roof pitch and eaves height must match the existing house, so most double storey projects are drawn and submitted as full householder planning applications rather than relying on permitted development.
Where the property sits in a conservation area or is subject to an Article 4 direction, any remaining permitted development allowance for a second storey is typically removed entirely, reinforcing the need for a full application. We check your property's status and your borough's design guidance before drawing.
How do councils control the impact of a double storey extension on neighbours?
Because a second storey introduces new windows and massing at first-floor level, London boroughs apply design guidance aimed specifically at protecting neighbouring light, privacy and outlook.
- The 45-degree rule, tested at neighbouring windows, to check the extension does not block an unreasonable amount of daylight
- A common design expectation that a two-storey side extension is set in roughly 1 metre from the shared boundary, rather than built hard against it
- A first floor commonly set back from the ground floor front elevation, so the upper storey reads as subordinate to the main house from the street
- Obscure or high-level glazing on flank walls facing directly into a neighbour's garden or windows, to limit overlooking
| Option | What it adds | Typical fee |
|---|---|---|
| Single-storey rear extension | A ground-floor kitchen-diner only, may qualify for permitted development | see Rear Extension Drawings, from £1,100 |
| Double storey side or rear extension | Two rooms across two floors, usually needs full planning | Full Planning pack ~£1,600–£2,400 |
| Double storey + Building Regulations (structural) | Combined pack including structural calculations for two-floor loads and foundations | Planning + Building Regs pack ~£2,200–£3,850 |
| Wraparound (rear + side return) | Combines two single-storey extensions into one L-shaped ground floor | see Wraparound Extension Drawings, from £2,200 |
Double Storey Extension Drawings in East Dulwich SE22 — FAQs
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