CL9 — Existing Buildings – Extensions and Modifications.
How Kensington And Chelsea actually applies CL9: who leans on it, where it bites hardest, and how often it's invoked. The policy text is the rule; this is the behaviour.
CL9 is a published Kensington And Chelsea planning policy. This page records where it appears in the council's published planning decisions.
Cited under: Kensington And Chelsea Local Plan (adopted)
Kensington And Chelsea · CL9
Where CL9 is quoted — by ward
Fewer ~0More citations ~6
Showingre-scopes the headline figures and the trend
18
times cited
in parsed decision notices
61%
appeal survival
20 dismissed · 13 allowed at appeal
12 of 76
officer reach
16% of officers recorded in this period
Redcliffe
top hotspot ward
6 citations
What this policy is about
Policy CL9 requires extensions and modifications to existing buildings to preserve their character and integrity. It applies to residential extensions and shopfronts, and the council will resist proposals that harm neighbouring properties or the building's original features. The policy supports careful design and restoration.
Plain-English summary of the adopted policy text below. The full text is the rule; this is the gist.
The policy — as adopted
Existing Buildings – Extensions and Modifications
The Council will require extensions and modificatio original building, to allow the form of the original bu the character and integrity of the original building, o
To deliver this the Council will resist proposals for e
a. the extension would extend rearward beyond the neighbouring extensions;
b. the extension would rise above the general heig to or above the original main eaves or parapet;
c. the extension would spoil or disrupt the even rhy
d. the detailed design of the addition, including the fenestration or the external materials and finishes, building;
e. the extension would breach the established fron
f. an important or historic gap or view would be blo
g. the architectural symmetry of a building, terrace
nishes, detailed design, proportions or aps and a sense of garden openness.
ay also be distinguished architecturally. Where, ardens, these elevations may be of as much vations of buildings are generally subordinate to ty and harmony which makes them attractive.
have an unfortunate effect in closing an important herwise symmetrical elevation of a terrace,
sidential extension in the borough. They are be located with this principle in mind. It is important of the borough and therefore their location in impact on neighbouring properties, their size and red.
e potential to cause harm, especially if they are the building or their cumulative impact detracts lding. Conversely, if handled in a careful and ntial to result in an improvement to the quality and may include changes to windows or glazing s and other architectural details; front walls; trance doors; the repair or replacement of stucco; uldings and the rendering or painting of a brick-
d Modifications
ons to existing buildings to be subordinate to the uilding to be clearly understood, and to reinforce or group of buildings.
extensions if:
e existing general rear building line of any
ght of neighbouring and nearby extensions, or rise
ythm of rear additions;
e location or proportions or dimensions of would not be in character with the existing
nt building line;
ocked or diminished; or group of buildings would be impaired;
h. the original architectural features on a formal fla
i. access to the rear of the property or of those adjo
j. a conservatory is proposed to be located at roof l corner site.
Shopfronts
22.3.82
Shopfronts111 within the borough play a k character of our high streets and shoppin examples of shopfront design ranging fro the careful restoration of some of these e highly valued built heritage, particular em design for all shopfronts, be they of tradi ensure they are inclusive for all.
22.3.83
In old buildings, the original fascia and p shopfront are often integral to the charac
22.3.84
Modern shopfronts are often temporary s retail demands. It is important that transi a building to achieve short-term requirem in with the age and character of the build
22.3.85
Open shopfronts can break up the contin gaps in a shopping parade. The creation space between the buildings. The facade and its character; the sudden appearanc gap in the shopping parade, so that the s left visually unsupported, the vertical ele
22.3.86
The under-use of the upper floors of reta event that they are not required for retail residential or office use. It is thus importa unless this is to bring the upper floors int more viable retail unit. New independent functionality of the retail use.
22.3.87
It is important to control blinds and awnin prominent, they can detract from the app the street scene.
22.3.88
Security shutters to shop fronts can prev create a deadening effect that many peo undermining the vitality and attractivenes
111 Shopfronts refer to ground floor entrances of class A
typically found within town centres and shopping parade
ank elevation would be obscured;
oining would be lost or reduced;
level, significantly above garden level or on a
key part in establishing and defining the visual ng parades. The borough has many fine om the mid-19th Century through to today. While early examples is important for maintaining our mphasis is placed on ensuring high standards of itional, modern or contemporary style and to
pilasters or columns which form the frame of the cter of the building.
street features adapting constantly to changing ient retail fashions do not disrupt the character of ments. House styles may have to be adapted to fit ding in which the shopfront is situated.
nuity of a street frontage and leave undesirable n of an open shopfront affects the form of the es present an envelope which defines the space ce of a large opening within the envelope leaves a space itself is altered. The facade above is also ements resting uncomfortably on a void.
ail premises is of concern to the Council. In the l purposes, a separate access will be needed for ant to prevent the removal of separate access to active retail use, making the unit as a whole a t access arrangements must not undermine the
ngs because, if poorly designed or overpearance of buildings and be obtrusive features in
vent light from spilling into the street at night, and ople feel creates a threatening environment, ss of areas with shops out of hours.
Verbatim from the adopted Kensington And Chelsea plan · source document. The council's published plan is the authoritative version.
How it lands
11% in approvals · 89% in refusals 18 citations in the selected period
The approval/refusal split is subscriber intelligenceUnlock →
Not filled in yet. This will hold how officers actually argue CL9 case by case, classified from their decision reports — the classification pass hasn't run. Nothing is paraphrased in its place.
What the published record shows
CL9 appears most often in Redcliffe, Royal Hospital, Earl's Court. It appears across 12 of 76 officers recorded in this period. The map shows the pattern for the selected period.
Who cites it — case-officer spreadfrom parsed decision notices · click an officer
Who leans on this policy — and how often — is subscriber intelligenceSubscribe to unlock →
Why it is cited — and what follows
11%
in approvals
2 citations
89%
in refusals
16 citations
This shows the decision reports in which CL9 appears. It does not yet claim that the policy caused those outcomes.
Reason · role · consequence
Not filled in yet — the classification pass over the citing passages hasn't run. When it has, this shows why CL9 was used, whether it supported approval or refusal, and what changed as a result. No conclusion is shown until that classification has been checked.
Why this policy is cited, and what follows, is subscriber intelligenceSubscribe to unlock →
From Planning Inspectorate decision letters that cite CL9. Dismissed = the council's refusal stood, the policy held; allowed = overturned. The tighter join — this borough's own refusals citing CL9 traced to their specific appeals — is still to come.
Citations, officer spread, ward and application-type counts parsed from published Kensington And Chelsea decision notices (high-confidence parses, approvals and refusals), joined to the canonical application record. One citation = one decision citing the policy. See the policy overview for every policy cited.
Atlas intelligence summarises patterns and observations from published planning records. Past decisions do not indicate how any future application will be determined. Every application is assessed on its own merits, having regard to the proposal, site, evidence and policies applying at the time. This information is provided for general information only and is not planning, legal, financial or professional advice.