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Planning applications, conservation guidance and architectural services across London Borough of Lewisham
Horizon Architecture provides planning, extension, loft conversion and technical drawing services across Lewisham, with active council monitoring and coordination from survey to decision.
Article reviewed 1 August 2026
LOCAL PLANNING / Lewisham
In Lewisham, public views can make rear and side work as important as a front elevation. The council’s conservation Article 4 guidance identifies controls over external changes visible from public viewpoints. Depending on the applicable direction, these may involve roof work, porches, garden buildings, surfacing and boundaries. Check the individual schedule: the list of affected areas includes Brockley, Ladywell, Telegraph Hill and others.
Brockley has a particularly useful local example. The council’s character appraisal describes leafy service mews behind streets such as Wickham Road and Breakspears Road, long rear gardens and substantial garden walls. Those spaces contribute to the conservation area, even where the proposed work is well behind the principal house. A garden studio or extension near a mews should therefore be assessed from the lane as well as from the kitchen.
Start with photographs of the approach, adjoining walls, trees and rear elevations. A site section should explain any change in levels and the height of a proposed garden building against the existing boundary. For a corner plot, include both street-facing edges and show how much of the established wall would remain. If the property has been divided into flats, confirm the planning route before applying householder permitted development assumptions. These checks help produce an address-specific proposal instead of treating the rear garden as a blank building plot.
National householder target: eight weeks from validation, unless extended by agreement. This is a decision target, never a promise of approval.
Explore our South West London loft conversion and Fulham family-home refurbishment. 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.
Lewisham: Article 4 directions in conservation areas · Lewisham: Brockley Conservation Area Character Appraisal, Part 2 · 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.
Lewisham’s hilly townscape, mature green character and varied housing stock create strongly localised planning considerations. The planning authority received 1,329 applications in the latest annual reporting period and issued 1,303 decisions. Of those decisions, 1,096 were granted and 207 were refused, equivalent to an authority-wide refusal rate of 15.9%. 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 Lewisham contains conservation areas including Blackheath, Brockley, Deptford High Street and St Paul’s Church, Forest Hill, Lewisham Park and Culverley Green. 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.
Conservation areas and Areas of Special Local Character require careful contextual design. The exact property should be checked for additional controls and applicable appraisals.
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 Victorian terraces, suburban houses, hillside neighbourhoods, estates, high streets, railway-adjacent sites and regeneration areas. Recurring planning considerations include topography, local views, trees, flood risk, heritage, roof additions, housing intensification, town-centre change and railway noise. 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.
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 Lewisham 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.
