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Free 2026 London Planning Report — New Build Drawings in Addiscombe CR0

Rear extension planning drawings for an Edwardian terrace in Addiscombe CR0, London Borough of Croydon
Addiscombe · CR0 · Croydon

New Build Drawings in Addiscombe CR0

Fixed-fee, MCIAT-chartered new build drawings for Addiscombe (CR0) homeowners — Croydon Council validation and local constraints handled from the start.

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Addiscombe in CR0 sits just east of central Croydon and blends Victorian and Edwardian terraces with interwar semis on generous suburban plots. It is very much a family-extension neighbourhood, so most of our work is rear and side extensions, loft conversions and garage conversions that add practical space for growing households.

Away from the East India Estate conservation area, much of Addiscombe is comparatively permitted-development friendly, which can open up straightforward routes to more space. Where conservation control or a larger scheme applies, we prepare full planning drawings that address Croydon's amenity, scale and materials tests so the application is assessed on solid ground.

Rear extension planning drawings for an Edwardian terrace in Addiscombe CR0, London Borough of Croydon
Isometric illustration of a Addiscombe CR0 home new build drawings design
Proposed floor plan
Addiscombe CR0

Planning in Addiscombe (CR0): what to know before you apply

There is no published householder Article 4 direction we depend on for Addiscombe, and much of the suburb benefits from permitted-development rights for modest extensions and lofts. The main exception is the East India Estate conservation area, where frontage, roof and material changes are more tightly controlled; elsewhere neighbour amenity and extension depth are the key limits.

Typical Addiscombe housing stock

Addiscombe, east of central Croydon, mixes Victorian and Edwardian bay-fronted terraces with interwar semi-detached housing along its residential streets. It is a strong family-extension market, so the common projects are rear and side extensions, loft conversions and garage-to-room conversions that add space without the tight constraints of inner London.

Streets we regularly draw for in Addiscombe

Clyde Road · Grant Road · Radcliffe Road · Addiscombe Road

What CR0 is actually built of

Measured from 683 classified residential buildings in CR0, not from a description of the area.

Addiscombe CR0 housing mix

Residential building form across the CR0 postcode district, from 683 classified buildings.

Attached on more than one side47%
Attached on one side46%
Detached7%
Median building footprint55 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.86
Buildings classified683

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 2026-09-22.

New Build Drawings for Addiscombe (CR0) 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 £1,450 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 £1,450
Building regs and structuralConstruction-ready drawings and calculations for buildingFrom £1,845–£3,145, quoted once planning is settled
Example new build drawings sheet showing the existing and proposed arrangement at scale, as we draw it for Addiscombe (CR0) properties
Example sheet showing how we draw new build drawings to Croydon Council's validation standards for Addiscombe (CR0) properties.
FAQ

New Build Drawings in Addiscombe CR0 — FAQs

How much do new build drawings cost in London?+
New build drawings start from £1,450 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. We draw the planning and building regulations sets; structural design is a separate fee, from a named, insured engineer or your own, and we coordinate it with our drawings 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 an extension in Croydon?+
It depends where in the borough you are. The interwar semis and detached homes of Purley, Sanderstead and Coulsdon often keep fuller permitted development rights than inner-London terraces, so larger rear and single-storey extensions can qualify. Conservation areas such as Addiscombe and South Norwood restrict this. We check your address first and can confirm permitted development with a Lawful Development Certificate.
Can I build a larger extension on a Purley or Sanderstead plot?+
Often, yes. Croydon's generous suburban plots make substantial rear and double-storey extensions viable where a tight terrace could not accommodate them. The limit is usually design and amenity policy rather than space. We design to use the plot fully within permitted-development allowances or a well-evidenced full application, checking the limits for detached and semi-detached homes first.
What does Croydon's HMO Article 4 direction mean for me?+
Across the whole borough, an Article 4 direction removes permitted development for change of use to an HMO (C3 to C4), so a conversion to a house in multiple occupation needs a full application. It doesn't affect a standard family extension, but if you are considering an HMO we confirm the proposed use before advising on a route.
How long does Croydon Council take to decide?+
Croydon gets eight weeks counted from the day after a valid application is received, with more time only by written agreement. The borough spans terraces to suburban plots, so we scale each drawing set correctly and follow the checklist.
How much do planning drawings cost in Croydon?+
We quote a fixed fee upfront, taken from our published price list, with free redraws until Croydon approves. Because plots here allow larger schemes, the fee tracks complexity — a single-storey rear differs from a double-storey — and we confirm it once we understand your plans.
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