Drawings that turn a Camden house into self-contained flats — units sized to space standards, separated for sound and fire, and drawn to Camden Council's conversion policy so the change of use is approved, delivered in days and revised free until your decision, with a free feasibility check first.
Camden Council granted 88% of the householder planning decisions it made in its latest published year — 1 point above the 87% England-wide householder average. The council runs one of London's strictest basement regimes, capping depth and demanding a Basement Impact Assessment, which is where a policy-literate drawing pack earns its keep. Its dominant Georgian (1714–1837) and Victorian (1837–1901) housing stock sets the design brief on most streets.
Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Camden Council needs a full application. Camden carries at least one Article 4 direction, and conservation areas including Hampstead, Fitzroy Square and Bloomsbury remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Camden is determined against an 8-week statutory target.
Hampstead (Georgian and Victorian houses inside a tightly protected conservation area), Belsize Park (grand Victorian villas and red-brick mansion blocks), Camden Town (dense Victorian terraces around the market), Primrose Hill (pastel-painted Victorian terraces beside Regent's Park), Kentish Town (Victorian terraces and converted flats) and Bloomsbury (Georgian squares and formal terraces) — these are the Camden pockets our drawings cover most. Heritage designations here include Hampstead, Fitzroy Square, Bloomsbury, Camden Town and Primrose Hill. Camden Council weighs each proposal against Camden Local Plan and the Camden Planning Guidance (CPG) on home improvements, where mansard and roof additions in conservation areas are measured against the terrace's original roofline and rhythm. Purpose-built mansion flats and converted terraces are widespread, and flats and maisonettes carry no householder permitted-development rights.. On roofs the borough is London butterfly / valley roofs behind parapets and mansard roofs on the taller terraces, over Georgian and Victorian terraces, purpose-built mansion flats and converted period flats.
Splitting one dwelling into several is the most policy-heavy job a house takes on, and Camden has the stock that invites it — the borough's Georgian and Victorian terraces, purpose-built mansion flats and converted period flats include the large period houses and mansion-block flats that convert well, and streets already part-converted set the pattern. But because you are creating new homes, Camden Council assesses the scheme against its housing and conversion policies, not just its extension guidance, so the internal layout carries planning weight it never would in a single house.
The layout has to satisfy several standards together. Each flat must meet the nationally described space standard for its number of bedrooms and bed spaces, with adequate light and outlook; the mix the council will accept is often set by policy, with some boroughs resisting too many small units or requiring a family-sized flat; and every unit needs its own amenity, plus cycle and refuse storage that works for the whole building. The council runs one of London's strictest basement regimes, capping depth and demanding a Basement Impact Assessment, which shapes what mix and layout will pass here.
Where the house sits in a conservation area — Hampstead, Fitzroy Square, Bloomsbury, Camden Town and Primrose Hill among Camden's — external changes are read hard: new entrances, bin and bike stores, meter boxes and any subdivision visible from the street all have to respect the area's character. Much of Camden — the Hampstead and Fitzroy Square conservation areas among them — sits under Article 4 directions that strip out permitted-development rights, and the borough's basement rules pile on a further layer of control. We resolve the frontage and access before the internal layout is fixed.
Yes — a house-to-flats conversion is a change of use and always needs a full application to Camden Council. The scheme has to satisfy each of these, and the drawings are where each is proven:
We lay out flats that meet the space standard, plan the sound and fire separation, and solve the entrances, bins and bike stores — then draw the change-of-use application to Camden Council's conversion policy so the scheme is judged on a complete proposal, not bounced for a unit that is too small or a layout that cannot be separated.
Below is Camden Council's real householder and residential decision record, drawn from official planning statistics and refreshed as new data lands. Camden approves the large majority of householder applications, though its basement policy and dense conservation coverage are the decisive constraints on many schemes. Conversions are judged harder than extensions because they create new homes, so a scheme that proves space, mix and separation upfront is decided far more smoothly than one that leaves the officer to find the gaps.
Source: MHCLG planning application statistics (householder decisions, rolling year). Compare every borough on our London approval-rate league table.
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The conversions that pass in Camden are the ones that treat the new homes as homes, not as the maximum number of doors that fit. Across Hampstead, Belsize Park and Camden Town, the approved schemes give each flat a proper layout at or above the space standard, a sensible mix rather than a stack of studios, and amenity, bin and cycle provision that does not wreck the frontage. Overcrowding the building is the quickest route to refusal, and it rarely adds the value it promises.
Mansard and roof additions in conservation areas are measured against the terrace's original roofline and rhythm. We design the mix to what Camden Council will accept, prove each unit meets the standard on the plan, and coordinate the planning layout with the sound and fire separation from the outset — so the scheme that gets permission is the same one building control can sign off, not a layout that has to be torn up at the next stage.
We convert houses and reconfigure flats on the period streets and mansion blocks across the borough. A few of the Camden neighbourhoods where conversions come up most often:
Flat conversion drawings for Hampstead's Georgian and Victorian houses inside a tightly protected conservation area — space-standard checked, separation-planned and drawn to Camden Council's conversion policy.
Flat conversion drawings for Belsize Park's grand Victorian villas and red-brick mansion blocks — space-standard checked, separation-planned and drawn to Camden Council's conversion policy.
Flat conversion drawings for Camden Town's dense Victorian terraces around the market — space-standard checked, separation-planned and drawn to Camden Council's conversion policy.
Flat conversion drawings for Primrose Hill's pastel-painted Victorian terraces beside Regent's Park — space-standard checked, separation-planned and drawn to Camden Council's conversion policy.
Flat conversion drawings for Kentish Town's Victorian terraces and converted flats — space-standard checked, separation-planned and drawn to Camden Council's conversion policy.
Flat conversion drawings for Bloomsbury's Georgian squares and formal terraces — space-standard checked, separation-planned and drawn to Camden Council's conversion policy.
A conversion is judged on planning and building standards together. This is what each requires and who checks it.
| Requirement | What it means | Set by | Checked at |
|---|---|---|---|
| Change of use | Creating separate self-contained units | Planning policy | Camden Council planning |
| Space standards | Minimum floor area per bedroom and bed space | National space standard | Camden Council planning |
| Unit mix & amenity | Sensible flat sizes, light, outdoor space | Local housing policy | Camden Council planning |
| Sound & fire separation | Part E acoustic and protected escape | Building regulations | Building control |
In conservation areas such as Hampstead and Fitzroy Square, external changes to a Camden conversion — entrances, bin and bike stores — are assessed against the area's character.
A fixed process built around how Camden Council judges conversions — most drawing sets are submission-ready within seven days of survey.
Send us your Camden postcode and the building. We test how many units realistically fit at the space standard, confirm the mix Camden Council is likely to accept, and flag conservation, Article 4 and access constraints before you commit.
We measure the building accurately, because a conversion lives or dies on floor areas — every flat has to be proven against the space standard on a plan that matches the real property.
We design the flats to the space standard, coordinate the sound and fire separation and the entrances, bins and cycle stores, and draw the full change-of-use application to Camden Council's conversion policy.
We lodge the application, manage validation and case-officer queries, and revise the drawings free until Camden Council issues its decision.
Always. Splitting one house into two or more self-contained flats is a change of use, which is never permitted development, so a full application to Camden Council is required. The council assesses the unit sizes, the mix and the amenity against its housing policy, as well as any external changes. A Camden conversion is judged more closely than an extension precisely because it creates new homes.
Each flat must meet the nationally described space standard, which sets a minimum floor area by the number of bedrooms and bed spaces — a one-bed one-person flat starts at 37–39 square metres, and larger units scale up from there. Camden Council will refuse units below the standard. We test how many compliant flats a Camden building genuinely holds at feasibility, rather than drawing undersized units that cannot be approved.
Once you create separate units, building control requires Part E acoustic separation between them — the floors and party walls must be built or upgraded to resist airborne and impact sound — and a protected means of escape so each flat can be left safely in a fire. These are checked by Camden Council's building control, separately from planning. We plan the separation into the layout from the start, so the planning design and the building-regs build are the same scheme.
Not necessarily. Many boroughs set policy on the mix — resisting schemes that are all studios or one-beds, and sometimes requiring a family-sized flat — to keep a range of homes. Camden Council applies its own housing policy to a conversion, so the profitable-looking stack of small units is often the one that gets refused. We design the mix to what the borough will actually accept before drawing the application.
Usually yes. Once the Camden building is flats, each unit is normally sold or let on a lease, and a Land Registry-compliant lease plan is needed to define its extent. The measured survey behind the conversion drawings is the ideal base for those lease plans, so the same accurate record serves the planning application, the building-regs layout and the leases without measuring the building twice. Camden Council is the decision-maker.
We price each Camden conversion on the number of units and the building's size and complexity, and send a fixed, no-obligation quote within one working day. It covers the feasibility, the change-of-use application drawings and free revisions until Camden Council decides. Building-regs separation drawings and any council fee are quoted separately. Call 020 7864 7245 to start.
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