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Free 2026 London Planning ReportPlanning Permission in Old Malden KT4

Loft conversion with skylights in an interwar Old Malden KT4 house, planned for Royal Borough of Kingston upon Thames approval
Old Malden · KT4 · Kingston

Planning Permission in Old Malden KT4

Fixed-fee, MCIAT-chartered planning permission for Old Malden (KT4) homeowners — Royal Borough of Kingston upon Thames validation and local constraints handled from the start.

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Old Malden in KT4 is unusual for the area: a genuine historic village core around its medieval parish church and Plough Green, ringed by a comfortable interwar suburb of detached and semi-detached family houses. Most projects on the suburban avenues are rear extensions, two-storey side additions and loft conversions built to Royal Borough of Kingston upon Thames standards.

Homes within or beside the Old Malden conservation area face tighter control over materials, elevations and any demolition, so schemes there need a conservation-led design. We balance the extra space owners want with the village setting, and prepare planning and building-control drawings that Kingston's officers can approve first time.

Loft conversion with skylights in an interwar Old Malden KT4 house, planned for Royal Borough of Kingston upon Thames approval
Isometric illustration of a Old Malden KT4 home planning permission design
Proposed floor plan
Old Malden KT4

Planning in Old Malden (KT4): what to know before you apply

There is no published householder Article 4 direction for Old Malden, so many suburban houses retain permitted-development rights; the principal constraint is the Old Malden conservation area covering the historic core, where front, roof and material changes need planning permission. Tree preservation orders on mature plots can also shape foundation and layout decisions.

Typical Old Malden housing stock

Old Malden pairs a small historic village core around the medieval church and Plough Green with a broad interwar suburb of detached and semi-detached houses on curving avenues. The suburban streets support rear and two-storey side extensions and loft conversions, while the older core demands a more sensitive conservation-led approach.

Streets we regularly draw for in Old Malden

Raleigh Drive · Collingwood Avenue · Oakdene Drive · Southwood Drive

What KT4 is actually built of

Measured from 324 classified residential buildings in KT4, not from a description of the area.

Old Malden KT4 housing mix

Residential building form across the KT4 postcode district, from 324 classified buildings.

Attached on more than one side37%
Attached on one side52%
Detached11%
Median building footprint67 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.21
Buildings classified324

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.

Planning Permission for Old Malden (KT4) homes: the package and the process

A householder application is refused validation far more often than it is refused permission, and almost always for the same reasons: a location plan at the wrong scale, no red line around the application site, a missing ownership certificate, or elevations that do not show every face of the building affected. We prepare the full submission set — location plan, block plan, existing and proposed floor plans, elevations and sections — so the case officer receives a complete case on day one.

Once the application is live we stay on it. Officers routinely come back with questions about materials, boundary treatment or a dimension they cannot read off the drawings, and a fast, drawn answer is usually the difference between a decision inside the statutory period and a request to withdraw and resubmit.

Which route applies is decided by the building before it is decided by policy. A house that has never been extended usually has allowances left to use; a flat, a listed building or a home in a conservation area often has none, and the same drawing set then has to make a design case rather than a compliance one.

Do I need planning permission for an extension in London?

Many single-storey rear extensions, loft conversions and outbuildings fall under permitted development rights and do not need a full planning application — but London's dense housing stock, conservation areas and Article 4 directions frequently withdraw those rights. Before you pay for a full application, we check your property against the current permitted development thresholds and your borough's local constraints.

Where permitted development applies, we recommend a Lawful Development Certificate instead of full planning — it is faster, cheaper and gives you a legal document confirming the work was lawful. Where a full application is genuinely required, we prepare it properly the first time.

Permitted development vs a full planning application

Permitted development lets you build within defined volumetric limits without committee review. A full householder application is assessed against the borough's local plan for scale, daylight, neighbour impact and design. We advise which route your project qualifies for and why.

Article 4 directions and conservation areas

If your home sits in a conservation area or under an Article 4 direction, permitted development rights are often removed — meaning even modest changes need consent. Each borough page lists the local directions and conservation areas we routinely design around.

How do you apply for planning permission through the London Planning Portal?

We manage the full lifecycle of your submission — survey, drawings, supporting documents and officer liaison — so you never have to decode a validation checklist yourself.

Phase 1 — existing and proposed site surveys

A laser-measured survey captures your property exactly, so existing and proposed drawings match reality millimetre for millimetre.

Phase 2 — technical drawing package

Site location plan, block plan, floor plans, elevations and sections drawn to your borough's scale and formatting requirements, with a design and access statement where needed.

Phase 3 — liaison with the planning officer

We answer the council's queries, negotiate amendments, and redraw free until the decision lands.

How long does planning permission take, and what does it cost?

Drawings are typically ready within 7 days of survey. Your council then has a statutory 8 weeks to decide a householder application. Our drawing fees are fixed and quoted upfront — the table below shows typical packages.

Typical fixed-fee planning drawing packages
PackageProduction windowCompliance layerTypical fee
Permitted Development pack7–10 working daysLawful Development Certificate submission£950–£1,450
Full Planning pack10–14 working daysCouncil liaison & design statement£1,600–£2,400
Planning + Building Regs pack14–21 working daysStructural calculations included£2,200–£3,850
Sheet from a planning permission package drawn for a Old Malden property in KT4, showing the existing and proposed arrangement at scale
A sheet from the planning permission package we submit to Royal Borough of Kingston upon Thames for Old Malden (KT4) properties.
FAQ

Planning Permission in Old Malden KT4 — FAQs

How long does it take to get planning permission from a London council?+
Householder applications carry a statutory 8-week determination period. We deliver your drawings within about 7 days of survey, so the council clock can start quickly. Lawful Development Certificates usually resolve faster.
What happens if the council refuses?+
Refusals are rare because every drawing is checked against your borough's local plan before submission. If it happens we advise on revisions or handle the appeal — many refusals recover at appeal.
Do you cover my borough?+
Yes — we submit across all 33 London boroughs every week. Each borough has its own page covering local conservation, Article 4 and validation quirks.
Is the fee really fixed?+
Yes. We quote a fixed fee before we start and it does not move, even when the council asks for revisions — those redraws are free.
Do I need planning permission for an extension in Kingston?+
The interwar semis of New Malden, Chessington and Tolworth often keep permitted development rights for rear extensions and lofts, so a full application isn't always needed. Conservation areas such as Surbiton, Coombe and the town centre, and riverside flood-zone constraints, can restrict this. We check your address first and can confirm permitted development with a Lawful Development Certificate.
My Kingston home is near the river — does flood risk affect my plans?+
It can. Riverside plots near Kingston lie within the Thames flood zone, and the council expects flood-risk and finished-floor-level considerations to be addressed for works there. We evidence these within the application so the council can validate and approve without repeated revisions.
Can I build a larger extension on a Coombe plot?+
Often, yes. The substantial detached houses on the Coombe hill sit on generous plots that make larger rear and double-storey extensions viable, subject to design and amenity policy. We design to use the plot fully within permitted-development allowances or a well-evidenced full application, checking the limits for detached homes first.
How long does the Royal Borough of Kingston take to decide?+
Kingston determines most householder applications within the statutory eight-week period once validated; conservation and riverside cases can involve additional consultation. We prepare submissions to the council's validation checklist to avoid the drawing queries that cause most delays.
How much do planning drawings cost in Kingston?+
We agree a fixed fee before starting, typically around 30% below an architect's fee for the same council-accepted drawings, with free redraws until Kingston approves. A suburban semi extension and a riverside or Coombe scheme differ in the evidence required, so we quote once we understand your address and project rather than by the hour.
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