Turn your unused Southwark garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulations drawings with Part L thermal compliance, structural calculations for any removed walls, all fixed fee.
Turn your unused Southwark garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulations drawings with Part L thermal compliance, structural calculations for any removed walls, all fixed fee.
Housing stock in Southwark: Georgian and Regency in Bermondsey and Borough; Victorian terraces in Camberwell and Peckham; Dulwich Estate controlled housing; riverside new-build.
Character: Dulwich Estate private planning scheme affects much of SE21 and SE22; Southwark planning for rest of borough; strong heritage context.
Article 4: Article 4 for HMOs borough-wide; additional Article 4 for office-to-residential in Bermondsey and Elephant & Castle.
We check whether your Southwark garage conversion needs planning permission or qualifies as Permitted Development — most integral garages don't need planning.
Full laser-measured survey of the existing garage, plus adjacent rooms where walls are being removed.
Existing and proposed floor plans, elevations and sections at 1:50 — full council-ready specification.
Garage conversions must meet current energy-efficiency standards — upgraded insulation, glazing U-values, heating specification.
Steel beam and padstone design where garage doors are replaced with walls and windows, plus any load-bearing wall removals.
Full Plans submission to Southwark Council Building Control or an approved inspector with inspections coordinated through to completion certificate.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Direct answers to the questions Southwark homeowners ask every week about garage conversion drawings.
Start a free quote →Most integral garage conversions in Southwark do not require planning permission — they're classed as an internal alteration, which is not development under the TCPA 1990. However, if the conversion materially alters the external appearance (new windows, raising the roof), planning permission may be required. Detached garage conversions to habitable use always need planning. Article 4 Directions in Southwark may also affect eligibility. We confirm the planning route before quoting.
Our fixed-fee architectural package for a Southwark garage conversion starts at £995 (planning assessment + building regs + structural). Typical build costs in Southwark are £15,000–£25,000 for an integral garage or £20,000–£40,000 for a detached garage, depending on insulation, flooring, and services.
Yes — every garage-to-habitable conversion in Southwark needs Building Regulations approval. Key requirements include minimum insulation values (Part L), fire safety and escape routes (Part B), damp-proofing (Part C), ventilation (Part F), and structural adequacy if removing the garage door opening.
Typically yes — a well-executed garage conversion in Southwark adds 10–15% to property value and costs far less per square metre than an extension. In areas where parking is not at a premium, converting an underused garage is one of the most cost-effective ways to gain living space.
A standard integral garage conversion in Southwark typically takes 4–6 weeks to build once drawings are approved. Our architectural package takes 3–4 weeks from instruction to Building Control submission. Total timeline: approximately 3–4 months from initial survey to completion.
We cover every London borough with the same fixed-fee approach. If your property sits on a boundary, here are the neighbouring options.
We cover every architectural technology service in Southwark with one chartered team.
From £840. A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning P...
From £840. A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L ther...
From £1,225. Every loft type across every {location} roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning ...
From £1,225. The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with ...
From £1,575. {location}'s most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards t...
From £1,950. Full architectural technology service for basement digs and cellar conversions in {location} — structural underpinning d...
From £350. Chartered structural engineer calculations for every residential intervention in {location} — steel beams, lintels, pad ...
From £450. End-to-end Party Wall Act 1996 service for {location} — Section 1, 3 and 6 notices, schedule of condition surveys, party...
From £1,225. London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your ...
Free quote in 60 seconds. Fixed fee from £995. MCIAT chartered.
Get my free quote →