With over 25 years of experience, Horizon Architecture brings together architectural design, interiors and technical coordination. We work with you to understand the property, compare options and develop the information each stage needs. Clear fees, fast responses and an agreed programme keep you informed as your project moves forward.
Planning applications, conservation guidance and architectural services across London Borough of Camden
Horizon Architecture provides planning, extension, loft conversion and technical drawing services across Camden, with active council monitoring and coordination from survey to decision.
Article reviewed 1 August 2026
LOCAL PLANNING / Camden
In Camden, a basement should not be treated as an internal remodelling exercise with planning considered afterwards. The council’s borough-wide basement Article 4 direction removes the relevant permitted development rights. That means the planning route needs to be established before excavation is designed around an assumed exemption, including where the additional space would sit beneath the existing house.
Camden’s basement application guidance calls for a site-specific Basement Impact Assessment addressing drainage, flooding, groundwater and structural stability. It also explains that independent technical auditing will generally be required. Bring the appropriate technical specialists into the feasibility stage: room layouts, lightwells and excavation depth may need to respond to their findings rather than being fixed before the assessment starts.
For above-ground extensions and alterations, the conservation-area guidance directs applicants to the relevant appraisal and management strategy and requires a heritage statement for an application in a conservation area. That statement should explain significance and the proposal’s effects. A generic history of Camden offers little help in assessing the particular roof, façade, garden or boundary that would change.
A practical opening pack combines a measured survey, existing and proposed sections, a record of historic features and photographs showing neighbouring buildings. For basement work, add an early description of excavation and site access so technical questions can be identified before submission. For energy improvements, identify the proposed equipment and visible alterations at the same stage as the extension. Treat each element as part of the full design, with its own consent implications where relevant.
Householder decisions: eight-week national target after validation, with longer times possible.
Explore our North London home refurbishment and North London extension and loft design. These are design references from the wider region, rather than confirmed projects in this borough. Each new proposal needs its own site assessment and consent route.
Camden: Article 4 Directions, other development · Camden: basement developments and applications · Camden: conservation areas · GOV.UK: determining a planning application
Fees are starting prices and depend on property size, complexity, location and scope. Statutory application charges, Planning Portal charges, Building Control fees, specialist consultants and VAT where applicable are additional.
These are authority-wide figures for the year ending 31 March 2026. Applications received and decisions issued are separate flows: a decision in the period may relate to an application received earlier. The official return combines several planning application routes and does not provide a reliable borough total limited only to full applications.
Camden has intense development pressure and extensive heritage coverage. Proposals often require a more detailed design narrative and stronger supporting evidence than their physical scale might suggest. The planning authority received 2,256 applications in the latest annual reporting period and issued 1,973 decisions. Of those decisions, 1,739 were granted and 234 were refused, equivalent to an authority-wide refusal rate of 11.9%. These totals provide useful context but do not predict the outcome of a specific property or proposal.
Approval depends on the site, planning history, Local Plan policies, the London Plan, permitted-development position, design quality, neighbour effects, heritage and environmental constraints. We review those matters before fixing the application strategy.
We aim to make the process effortless for the client. After submission we check whether the application has been validated, monitor the council register and key dates, and remain available to provide information that is reasonably required. Where the case officer identifies a specific concern and is willing to consider an amendment, we assess it quickly and coordinate an appropriate response rather than allowing avoidable delay.
London Borough of Camden contains conservation areas including Hampstead, Belsize, Primrose Hill, Bloomsbury, Fitzroy Square, Regent’s Park, Dartmouth Park and South Hill Park. A conservation area does not prevent thoughtful change, but the council must give special attention to preserving or enhancing its character and appearance. This commonly affects roof alterations, dormers, front elevations, windows and doors, boundary walls, hardstanding, demolition, plant, materials, trees and development visible from public viewpoints.
Camden uses Article 4 Directions in several conservation areas, including Belsize and Primrose Hill. Conservation appraisals and local guidance often have a direct influence on windows, roofs, façades and front boundaries.
For a property in or near a conservation area we review the relevant appraisal and management guidance, identify features that contribute to significance and explain how the proposed design responds. A heritage statement, schedule of materials, detailed joinery information, streetscape drawings or verified views may be needed depending on the project.
The borough includes listed terraces, villas, mansion blocks, mews, post-war estates, town-centre buildings and high-value residential properties. Recurring planning considerations include heritage significance, basements, roof extensions, townscape views, daylight and sunlight, trees, construction management, neighbour amenity and cumulative change. The correct solution is therefore site-specific: a form of development that is acceptable on one street may be unsuitable on another because of plot pattern, designation, visibility, neighbour relationships or planning history.
We coordinate the architectural work with other disciplines where the planning authority or project requires them. This avoids fragmented information and gives the client one coordinated route through the process.
The principal statutory planning application fees are set nationally rather than by each London borough. From 1 April 2026, a typical householder application to alter or extend one house costs £548. Other development types use different calculations. Planning Portal service charges, council pre-application advice, Building Control, specialist reports and professional fees are separate.
Horizon Architecture charges £100 for planning application submission, with planning drawings starting from £1,400. We confirm the architectural scope, likely statutory fee and foreseeable specialist inputs before appointment.
Read the detailed neighbourhood planning guide.
View area guide →Read the detailed neighbourhood planning guide.
View area guide →Read the detailed neighbourhood planning guide.
View area guide →Read the detailed neighbourhood planning guide.
View area guide →Read the detailed neighbourhood planning guide.
View area guide →No architect can guarantee a council decision. We improve the prospects through planning-history checks, policy analysis, proportionate design, complete documentation and active management after submission.
Yes. We monitor validation and determination, check the public record, remain available to the case officer, supply reasonable clarifications and respond quickly where a focused amendment could assist the application.
No. The official authority-wide applications-received series combines several planning routes. It does not publish a reliable annual borough total limited only to full applications, so we state the limitation rather than inventing a number.
From 1 April 2026, the nationally set statutory fee for alteration or extension of one house is £548. Planning Portal charges, council pre-application services and professional fees are separate.
Yes, subject to the agreed scope. We can coordinate structural engineering, heritage, acoustic, arboricultural, drainage, flood-risk, transport, daylight, fire, energy and building-services information.
Not automatically. The design must preserve or enhance the area’s character and respond to the appraisal, visibility, roof form, materials, historic fabric, trees and any Article 4 Direction.
Send us the property address, photographs and a short description of the proposed work. We will outline the likely planning route, key constraints, required drawings and an appropriate quotation.
Get a free quoteSelect another borough below. Every guide uses the same official reporting period and explains conservation controls, current statutory fees and Horizon Architecture’s active application-management service.
All London borough planning guides · Neighbourhood planning guides · Planning applications · Building Regulations drawings · Conservation area architect · Planning refusal help
Article updated 1 August 2026. Planning figures: MHCLG accredited official statistics. Conservation information: London Borough of Camden guidance. Borough coverage: London Councils. Statutory fees: Planning Portal fee guidance. The exact address, designation, Article 4 status, validation requirements and current fee should always be checked before submission.
