A Greenwich garage standing empty can become a bedroom, a home office, or the extra depth an open-plan kitchen needs. We settle the planning route, draw a complete building regulations package showing how the room satisfies Part L on thermal performance, and size the structure over every wall removed.
A garage conversion drawings package in Greenwich, where the stock is largely Georgian in Greenwich town centre; Victorian terraces in East Greenwich, is the full measured-survey-to-submission drawing set Royal Borough of Greenwich needs in order to determine an application: existing and proposed plans, elevations and sections at 1:100 and 1:50, a location and site plan, and the supporting statements the case officer asks for.
Prepared and reviewed by the chartered technologist team at Architectural Drawings London — MCIAT chartered, £2m PI insured.Last reviewed 2026-08-03.
Turn your unused Greenwich 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.
Housing stock in Greenwich: Georgian in Greenwich town centre; Victorian terraces in East Greenwich, Charlton; inter-war semi-detached in Eltham; new-build along the riverside.
Character: World Heritage Site status in Greenwich town centre adds heritage weight; outer borough areas (Eltham, Thamesmead) generally permissive.
Whether a Greenwich garage conversion needs planning permission or proceeds as permitted development is the first thing we settle. An integral garage usually needs none.
A full laser survey of the garage as it stands, extended into the adjoining rooms wherever walls are coming down.
Existing and proposed drawn at 1:50 — floor plans, elevations, sections — specified to the standard Greenwich Building Control expects.
Converted garages have to meet current energy standards: insulation to floor, walls and roof, glazing U-values, and heating specified to warm the new room properly rather than borrowing from next door.
Take out the garage door, put in a wall with windows, and that opening needs a steel beam with padstones designed for it. The same applies to any load-bearing wall removed indoors.
You pick the body: either Greenwich Council Building Control or a private approved inspector receives the Full Plans. We book the inspections and see them through to a completion certificate.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Move the controls for an indicative figure. It anchors your budget — it is not a quote. Every project is priced after a free survey.
Build costs are separate and quoted by your contractor. See our published fees.
Greenwich district by district: the housing in each, and who validates a garage conversion submitted from it. Fee figures shown are statutory England rates for 2026.
| Postcode | Area | Dominant stock | What it means for a garage conversion |
|---|---|---|---|
| SE2 | Abbey Wood | Georgian in Greenwich town centre; Victorian terraces in East Greenwich | SE2 at Abbey Wood is shared with Bexley, so confirm whether Greenwich or Bexley validates before SE2 drawings are prepared. |
| SE3 | Blackheath / Kidbrooke | Georgian villas, Victorian terraces | SE3 divides Blackheath and Kidbrooke between Greenwich and Lewisham, so an SE3 address is checked against both policies maps first. |
| SE7 | Charlton | Victorian villas, 1930s semi-detached | SE7 is Charlton in its entirety, which keeps a conversion there under a single authority and a single designation map. |
| SE9 | Eltham / Mottingham | 1930s semi-detached, post-war flats | SE9 crosses into Bromley around Eltham and Mottingham; establish the validating authority before an SE9 set is drawn. |
| SE10 | Greenwich | Georgian terraces, listed buildings | SE10 is Greenwich proper, wholly inside the borough, and a good deal of it sits within a designated area. |
| SE18 | Woolwich / Plumstead | Georgian fragments, post-war estates, new-build | SE18 covers Woolwich and Plumstead, entirely Greenwich's, and is decided under the borough's own Local Plan. |
| SE28 | Thamesmead | Post-war estates, new-build | SE28 is Thamesmead, all Greenwich's, and largely post-1970 housing where integral garages are common. |
A Charlton terrace and an Eltham semi differ in pitch, in wall construction, in how deep the plot runs. Every one of those differences alters what a garage conversion can be made to do.
Greenwich conservation designations: twenty of them, with Blackheath, Charlton and Eltham Park among the ones we meet most. Designation costs a Greenwich owner the permitted-development route. The job becomes a £548 householder application decided over 8 weeks; the prior approval alternative it displaces charges £249 and takes 6. That is no dead end: the borough granted 311 of 467 change-of-use decisions over three years, 66.6% where London pooled reaches 59.3%.
No blanket Article 4 over Greenwich: Greenwich Council has not withdrawn permitted development across Greenwich, so a garage conversion outside a Greenwich conservation area usually keeps it. The £274 Lawful Development Certificate is still the document a SE2 owner wants on file.
Greenwich housing stock: Georgian in Greenwich town centre; Victorian terraces in East Greenwich, Charlton; inter-war semi-detached in Eltham; new-build along the riverside. World Heritage Site status in Greenwich town centre adds heritage weight; outer borough areas (Eltham, Thamesmead) generally permissive. Read that before choosing a garage conversion route in Greenwich — construction, not postcode, sets what is achievable. Greenwich Council charges £548 for a householder application and has 8 weeks to determine it.
Sources for this Greenwich garage conversion page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
Greenwich loses change-of-use appeals more often than London does on average. Of 102 decided here, 39 were allowed and 63 dismissed: 38.2% succeeding against 29.1% city-wide. Making living space out of a garage or an outbuilding is normally handled as a change of use, and 102 Greenwich decisions of that kind went all the way to an inspector. Read the number as a comment on the council's refusals rather than as an approval rate; only the refused ever appear in it.
Half of those appeals took longer than 115 days to decide from the day they began — the best part of four months, added to whatever the council had already used, which is the argument for a first application that stands up on its own. Listed-building settings were at issue in 14.7% of them. And 97.1% were decided on written representations, so what the inspector weighed was the drawings and the written case, nothing else.
Covering 102 change-of-use appeals decided in Greenwich. The source is Planning Inspectorate casework, available under OGL v3.0.
Straight answers to what Greenwich owners actually ask before commissioning garage conversion drawings.
Start a free quote →Most integral garage conversions in Greenwich 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 Greenwich may also affect eligibility. We confirm the planning route before quoting.
Of everything you might do to a Greenwich house, converting the garage buys habitable floor most cheaply. Assessing the planning route, drawing the building regulations set and sizing the beam over the old door opening are all inside our package. What the builder charges depends on two things: whether the garage stands under the same roof as the house or on its own, and what you specify for insulation, floor construction and services. Against a borough where the Land Registry logged a median sale of £460,000 during 2025, across 2,635 transactions, the arithmetic is usually straightforward. See our fees.
Yes — turning a garage into habitable space is Building Regulations work every time. Five requirements bite. Part L sets the insulation levels, Part B the escape route and fire separation, Part C the damp-proofing, Part F the air changes, and structural adequacy where the door opening gets filled in.
Usually, although the honest answer is that no one can attach a reliable percentage to it. What can be stated is the price context. Greenwich's 2025 median sale was £460,000 over 2,635 price-paid transactions, the lower quartile £365,000 and the upper £600,000, and that median finished exactly level with 2024. Per square metre a garage conversion costs a fraction of an extension, and it adds rooms without adding footprint, which is why it holds up well in a flat market. Where street parking is genuinely scarce, giving up the garage can pull the other way.
Once drawings are approved, a standard integral garage takes roughly 4 to 6 weeks on site. Our side of it takes three or four weeks, from instruction through to the Building Control submission. First survey to completion certificate, end to end, is roughly 3 to 4 months.
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One chartered team handles a Greenwich conversion from the first measurement to the Building Control submission, with nothing subcontracted out along the way.
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