Islington Planning Consultant
Where the CAZ meets the terraces
Islington is one of the most densely built boroughs in the country. Its southern edge, around Clerkenwell, Farringdon and the City Road, lies within or next to the Central Activities Zone, while Barnsbury, Canonbury and Highbury are streets of Georgian and Victorian terraces protected by conservation areas.
Cedar Planning is a Chartered consultancy led by Dan Malloy MRTPI. We are based in Norfolk and work across England, including inner London, handling applications with Islington Council and appeals with the Planning Inspectorate, and visiting sites when needed.
- RTPI Chartered
- Fixed-fee quotations
- Direct advice from a Chartered Planner
The 2023 Local Plan and how it is organised
Islington replaced its old Core Strategy, Development Management Policies, Site Allocations and Finsbury Local Plan with a single new Local Plan, adopted on 28 September 2023. It has three parts: the Strategic and Development Management Policies, the Site Allocations, and the Bunhill and Clerkenwell Area Action Plan, which guides the south of the borough next to the City.
Because the plan is recent and was tested against the London Plan 2021, officers apply it with full weight. There is little scope to argue that local policies are out of date, so a proposal has to meet them on their own terms or show clearly why an exception is justified.
The plan opens with PLAN1, which requires every development to start with a site appraisal and to follow four principles: contextual, connected, inclusive and sustainable. Officers expect applications to explain how the design responds to each one, so a thin design and access statement is a common weak point.
Spatial policies then set out the strategy for each area. SP1 covers Bunhill and Clerkenwell, SP2 King's Cross and Pentonville Road, and SP3 the Vale Royal and Brewery Road industrial area, with further spatial policies for Angel and Upper Street, Nag's Head and Holloway, Finsbury Park, Archway and Highbury Corner.
Class MA rights removed in two stages
The first set of Article 4 Directions took effect in August 2023, covering the CAZ and adjoining areas, Vale Royal and Brewery Road, and the specialist shops at Camden Passage and Fonthill Road. A second tranche from 1 September 2025 added the town centres at Angel, Archway, Finsbury Park and Nag's Head, plus local shopping areas and priority employment areas.
Islington planning pressures
Policy B3 protects existing business floorspace, particularly in the CAZ and employment areas. Changing offices or workshops to homes needs strong marketing and viability evidence, and often fails.
Policy B4 expects major commercial schemes to include affordable workspace. In Clerkenwell and around Old Street this can shape the viability of an office scheme from the outset.
Policy DH4 and the Basement Development SPD control depth, extent and construction impacts. Terraced streets with shared party walls make structural and hydrological evidence essential.
Policy DH5 puts the burden on new development near pubs, music venues and workshops to design out noise, which affects flats in Holloway, Angel and the King's Cross fringe.
Planning support for Islington sites
All work is priced as a fixed-fee quotation after an initial review. These are the services most relevant to Islington.
Planning Applications
Mixed-use, office and residential schemes in Clerkenwell, Angel and Holloway, prepared around PLAN1's site appraisal and the business floorspace policies B1 to B4.
View serviceHeritage Statements
Assessments for listed terraces and conservation areas in Barnsbury, Canonbury, Highbury and historic Clerkenwell, written to meet Policies DH1 and DH2.
View serviceHouseholder Applications
Rear, roof and basement extensions to terraced houses, addressing the Urban Design Guide, DH4 on basements and the amenity of neighbours on tight plots.
View serviceClass MA Prior Approval
Commercial to residential conversions on sites outside the 2023 and 2025 Article 4 areas, checked carefully against the mapped boundaries before any fee is spent.
View serviceHMO Planning Permission
Large HMOs and sui generis shared housing, which need permission and are assessed under Policy H10, plus certificates confirming existing small HMO use.
View servicePlanning Objections
Objections for residents and businesses affected by nearby schemes, focused on the local plan policies officers must apply, from DH5 noise to daylight and heritage.
View serviceIslington policies and the London Plan
Design and heritage are covered by the DH policies. DH1 is the strategic policy on fostering innovation while conserving and enhancing the historic environment, DH2 deals with heritage assets and DH3 with building heights, informed by the council's 2018 Tall Buildings Study. Tall buildings are only supported on identified sites, such as a small number of locations near King's Cross.
Housing policies run from H1 to H12, including H4 on housing quality, H5 on private outdoor space, H6 on student accommodation and H10 on HMOs. They sit alongside London Plan Policies D6 on space standards and H10 on housing mix.
The London Plan 2021 includes the south of the borough in the Central Activities Zone, where Policy SD4 gives priority to offices and strategic functions, and places part of it in the City Fringe Opportunity Area. That is why the Bunhill and Clerkenwell Area Action Plan pushes for more office space than homes in the south.
Policy areas that come up most
Height is plan-led, so a taller building outside an identified site faces a policy conflict from the outset. Townscape and view evidence is needed for any significant increase.
New homes need usable private outdoor space. On constrained conversions, balconies and terraces must be balanced against overlooking and heritage.
Vale Royal and Brewery Road is protected for light industrial, storage and hybrid workspace, and residential uses are resisted there.
Islington's CIL applies to liable permissions granted from 1 September 2014, alongside the Mayoral CIL. Rates vary with location and use.
A Consultancy That Works With You, For You
Islington's plan is new, detailed and firmly applied. The council protects business space, controls height tightly and expects design to be explained from first principles. A scheme that ignores PLAN1 or the business floorspace policies is likely to be refused even if it looks acceptable on the street.
Advice before you commit helps confirm whether Class MA is still available, whether a basement is realistic and what evidence the officer will want to see.
RTPI Chartered
Led by a Chartered member of the Royal Town Planning Institute with more than ten years of public and private-sector planning experience.
Honest Prospects
A realistic view of the planning risks and options before you commit time or money.
Fixed, Transparent Fees
Fixed-fee quotations agreed before work starts, so you know the cost from the outset.
Direct Access
You deal with the Chartered Planner doing the work, not an account manager.
Planning Consultants Across London
We cover every council area in London. See our main London planning consultants page. If your application has been refused, see our Islington planning appeal page.
Islington Planning FAQs
Can I convert my Clerkenwell office to flats under permitted development?
Almost certainly not. The CAZ and adjoining areas have been covered by a Class MA Article 4 Direction since August 2023, and Policy B3 resists the loss of business floorspace. A full application would need strong evidence, and the policy starting point is to keep the office use.
Are basements allowed under Islington terraced houses?
They can be, but Policy DH4 and the Basement Development SPD set limits on depth and extent and require evidence on structural stability, drainage and construction impacts. Listed buildings and conservation areas add further tests, so early design advice is sensible.
Where does Islington allow tall buildings?
Policy DH3 limits tall buildings to identified sites, informed by the 2018 Tall Buildings Study. A handful of locations around King's Cross and Pentonville Road are identified in the plan. Elsewhere, height well above the surrounding townscape is unlikely to be supported.
Do small HMOs need planning permission in Islington?
Islington's current Article 4 Directions target commercial to residential change, not the switch from a house to a small HMO. Larger HMOs for seven or more people always need permission and are judged against Policy H10. See our HMO Article 4 guide for how this differs elsewhere in London.
What does Islington mean by a site appraisal under PLAN1?
It is an analysis of the site and its surroundings, covering context, movement, heritage, environment and the people affected, which then informs the design. Officers look for it in the design and access statement and expect to see how the four principles have been applied.
What happens if Islington refuses my application?
You can revise and resubmit, or appeal to the Planning Inspectorate. Our Islington planning appeals page explains the routes and deadlines, and how the council's policies are tested at appeal.
Get a Free Quote
Tell us what you are trying to achieve and where the property or site is. We will give you an initial view and a fixed-fee quote.
Or email us at info@cedarplanning.co.uk with the relevant information.
Working on a project in Angel, Clerkenwell, Highbury or Holloway? Book a free 15-minute call, or see our Camden Class MA case study and heritage statement service.