House Extension Drawings in Hither Green SE13
Fixed-fee, MCIAT-chartered house extension drawings for Hither Green (SE13) homeowners — London Borough of Lewisham validation and local constraints handled from the start.
Hither Green in SE13 is dominated by the Corbett Estate, a planned sweep of bay-fronted late-Victorian and Edwardian terraces laid out in remarkably consistent streets. The everyday brief here is a side-return infill, a rear extension or a loft conversion, giving growing families more room inside a house type that suits all three projects well.
Much of the estate sits within the Culverley Green conservation area, where the uniform roofscape and repeating frontages mean dormers, extensions and materials are judged closely against their neighbours. We prepare drawings that respect that rhythm and set out the detail Lewisham's officers look for, which is how we keep loft and side-return schemes on track to approval.
Planning in Hither Green (SE13): what to know before you apply
We rely on no published householder Article 4 direction for Hither Green, but the Culverley Green conservation area over much of the Corbett Estate removes some permitted-development rights and controls roof and frontage changes. The consistency of the terraces and the visibility of loft dormers are the main constraints shaping design.
Typical Hither Green housing stock
Hither Green is defined by the Corbett Estate: long, uniform runs of late-Victorian and Edwardian bay-fronted terraces built to a consistent pattern, much of it within the Culverley Green conservation area. The bread-and-butter projects are side-return infills, rear extensions and loft conversions that unlock family space while keeping the estate's strong repeating rhythm.
Streets we regularly draw for in Hither Green
Sportsbank Street · Shorndean Street · Ringstead Road · Bowness Road
What SE13 is actually built of
Measured from 392 classified residential buildings in SE13, not from a description of the area.
Hither Green SE13 housing mix
Residential building form across the SE13 postcode district, from 392 classified buildings.
| Attached on more than one side | 58% |
|---|---|
| Attached on one side | 36% |
| Detached | 6% |
| Median building footprint | 62 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 2.13 |
| Buildings classified | 392 |
Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-08-17.
House Extension Drawings for Hither Green (SE13) homes: the package and the process
Extension drawings are read for their dimensions. The proposed plan needs depth measured from the original rear wall — not from a previous extension — eaves and ridge heights taken from existing ground level, and the distance to each boundary marked. A site plan showing how much garden remains is what an officer reaches for when the amenity question comes up.
We draw the existing building accurately first, because everything else is measured from it. Where the original footprint has already been added to, that history goes on the drawing: it decides which allowances are still available and it is the first thing an officer checks against the council's own records.
The plot decides the extension type long before taste does. A mid-terrace has depth to work with and an alley if it is lucky; a semi has one clear flank; a detached house can go wide. Reading the building form first is what stops a design being drawn that the plot cannot take.
Which extension types do you draw?
Every London extension is shaped by the plot, the neighbours and the borough's design guidance. We draw them all.
Rear extension
A single-storey rear extension is often permitted development within depth limits — ideal for an open-plan kitchen-diner.
Side-return
Fills the alley beside a Victorian terrace, widening the ground floor without losing garden.
Wraparound
Combines a rear and side-return extension for a transformative ground floor, usually needing planning permission.
Double-storey
Adds space above and below, subject to tighter scale and neighbour-impact scrutiny.
Basement
Creates space downward where footprint is limited, with structural and party-wall care.
Do I need planning permission for a house extension in London?
Single-storey rear extensions within permitted development limits (up to 6m for terraced/semi-detached homes under the larger-home scheme, subject to neighbour consultation) may not need a full application. Wraparounds, double-storeys and anything in a conservation area usually do. We assess your plot and recommend the right route before drawing. The current depth, height and eaves limits are set out in full in the guide to planning permission for a rear extension, and where you would rather one practice ran the design, the application and the building-regulations stage together, Architectural Drawings covers that full scope.
How do you maximise the footprint the council will approve?
We know each borough's depth, height and daylight standards, so we design to the edge of what will be approved rather than guessing — and we check the 45-degree neighbour daylight rule and any rear building line before submission. Where a plot is tight we test a permitted-development scheme against a slightly larger householder application and show you the trade-off in space, cost and timescale, so the drawn scheme is the one that actually maximises value rather than just floor area.
| Extension | Typical route | Package | Fee from |
|---|---|---|---|
| Single-storey rear | Permitted development / householder | Planning + building regs | £1,100 |
| Side-return | Householder planning | Planning + building regs + structural | £1,600 |
| Wraparound | Householder planning | Full package + structural | £2,200 |
| Double-storey | Householder planning | Full package + structural | £2,400 |
House Extension Drawings in Hither Green SE13 — FAQs
How far can I extend without planning permission in London?+
Do extension drawings include structural calculations?+
How long do extension drawings take?+
Will my rear extension need a party wall agreement?+
Can I extend a house in a conservation area?+
Do I need planning permission for a side-return extension in Lewisham?+
What does Lewisham's borough-wide HMO Article 4 direction affect?+
Can I convert the loft on my Lewisham terrace?+
How long does Lewisham Council take to decide?+
How much do planning drawings cost in Lewisham?+
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