MCIAT chartered architectural technologists covering Tonbridge and the wider Kent commuter belt from our London base. Planning permission, building regulations, loft conversions, extensions and mansard roofs — fixed fees from £840, 30% below typical London architect rates.
Historic market town on the Medway, anchored by one of the best-preserved Norman castles in England.
All householder planning applications in Tonbridge are determined by Tonbridge and Malling Borough Council. The council follows the National Planning Policy Framework and its own adopted Local Plan, supported by area-specific design guides and Supplementary Planning Documents.
Conservation areas: Tonbridge Town, Hadlow, East Peckham and Hildenborough are conservation areas. Tonbridge Castle is a Scheduled Monument within the town centre.
Policy quirks to watch: Flood risk from the River Medway constrains much of the town centre. Tonbridge and Malling's Local Plan is under review, and large parts of the borough are Green Belt or Metropolitan Open Land.
Typical housing in Tonbridge includes medieval and Georgian buildings around the High Street and Castle, Victorian terraces by the station, interwar semis in Higham Wood and modern estates towards Hildenborough. This mix drives the types of projects we most often prepare drawings for here.
Five core services — all fixed-fee, all delivered by MCIAT chartered architectural technologists, all within our 50-mile service radius.
Full planning submission: existing/proposed plans, elevations, site plan, and Design & Access Statement.
Construction-detail drawings for your builder and Building Control submission.
Rear dormer, hip-to-gable, L-shape or mansard loft conversion drawings.
Single-storey, double-storey, wrap-around and side-return extension drawings.
Full mansard conversion drawings with structural and thermal detailing.
Every drawing is signed off by a Chartered Member of the Institute of Architectural Technologists. The same quality bar that applies to our central London projects applies to our Tonbridge work.
We regularly submit to all M25 commuter-belt councils including Tonbridge and Malling Borough Council. We research each council's Local Plan, design guides and recent decision history before we start drawing.
Site visits, measured surveys and pre-application meetings in Tonbridge are all included in our fixed fee. No mileage charges, no hourly rates, no surprises on the invoice.
Our submissions across the 33 London boroughs and the M25 commuter belt are approved at first application 98% of the time. Saving you the council resubmission fee and weeks of delay.
Rear and side-return extensions on Tonbridge's Victorian and Edwardian terraces are among the most common projects we handle. A single-storey rear extension of up to 6 metres is often achievable without full planning permission, though conservation-area status (see Tonbridge and Malling Borough Council guidance) typically removes Permitted Development rights.
Two-storey side and rear extensions on Tonbridge's 1930s semi-detached housing stock allow for a larger kitchen and dining area at ground floor and an additional bedroom and bathroom above. Tonbridge and Malling Borough Council generally supports subordinate extensions that maintain the original house's form and street rhythm.
Sympathetic extensions to listed and historic homes require additional heritage input. For period properties in Tonbridge, we prepare heritage impact statements, use traditional materials and maintain the original proportions that Tonbridge and Malling Borough Council's conservation officer will expect to see.
Rear extensions and loft conversions on Tonbridge's post-war and New Town estates unlock significant additional living space. Many of these houses were built with low floor-to-ceiling heights, so we carry out a careful head-height survey before confirming loft-conversion feasibility.
Same fixed fees as our London work — no "commuter belt premium", no hourly surprises. Tonbridge and Malling Borough Council application fees are charged separately at the statutory rate.
Planning permission drawings for Tonbridge.
Planning + building regulations drawings for Tonbridge.
Complex or listed-building projects in Tonbridge.
Yes. Tonbridge is well within our 50-mile service radius from our London office. We cover all Tonbridge postcodes (TN9, TN10, TN11, TN12) for planning permission drawings, building regulations drawings, loft conversions, house extensions and mansard roofs. Tonbridge is 30 miles from central London (40 min from London Charing Cross), so our team can comfortably visit for measured surveys and pre-application meetings with Tonbridge and Malling Borough Council.
Our fixed fees in Tonbridge match our London rates: Essentials from £840 (planning drawings only), Complete from £1,750 (planning + building regulations), Loft package from £1,225, and Mansard package from £1,575. These prices are roughly 30% below typical London architect rates for the same scope of work. Tonbridge and Malling Borough Council application fees are charged separately at the statutory rate (£258 for a householder planning application, £129 for a Lawful Development Certificate in 2026).
Yes, every project includes an in-person measured survey at your property in Tonbridge. Travel time from London is included in our fixed fee — you will never be charged mileage or hourly rates for site visits. We typically combine the measured survey with an initial brief discussion on site, then return for pre-submission checks if needed. For projects that require pre-application meetings at Tonbridge and Malling Borough Council, we attend on your behalf and include the call or meeting in the fee.
Yes. While our office is in London, our MCIAT chartered architectural technologists regularly submit to councils across the M25 commuter belt, including Tonbridge and Malling Borough Council. We use the Planning Portal for submissions, so the process is identical regardless of which local planning authority handles your application. We research each council's Local Plan, design guides, and recent decision history before preparing your drawings so that the scheme aligns with their current approach.
The statutory target for a householder planning application is 8 weeks from validation. Tonbridge and Malling Borough Council generally meets this target for straightforward applications, although conservation area or listed building consents can take longer. Pre-application advice typically takes 4–6 weeks. From initial instruction to final decision, expect 10–16 weeks for a typical residential project in Tonbridge.
Fixed fees from £840. MCIAT chartered. 98% first-time approval.