Loft Conversions in London

Loft Plans proposed elevation drawing for a loft conversion

Planning and design detail

Planning a loft conversion in London? Loft Plans prepares the design and approval pack, not the build: measured survey, planning drawings, Building Regulations drawings, structural calculations and council submissions, ready for your chosen builder. We work mainly across North and East London — from Victorian terraces in Hackney and Walthamstow to 1930s semis in Enfield and Barnet.

All London boroughs covered
Specialists in L-shape dormers
Conservation area experience
Party Wall guidance included
Planning drawings from £950
Fixed-price — no hidden fees

Discuss your loftWe typically reply within 2 working hours.

Planning and design detail

Article 4 & conservation areas — check before commissioning drawings

Many London boroughs have Article 4 directions removing Permitted Development rights, and inner-London conservation areas (large parts of Hackney, Islington, Camden, Haringey and Waltham Forest) require a full householder planning application even for a rear dormer. We check your specific address against the local plan for free before any drawings start.

Why London homeowners choose Loft Plans

North & East

Primary London coverage

1–2 weeks

Drawing preparation

Fixed

Price — no surprises

Planning drawings package

From £950

£950 planning/design stage · £550 technical stage after full-planning approval

The measured survey and drawings needed to define the design and support a planning or Lawful Development Certificate submission.

Measured survey of your property
Existing floor plans, sections & elevations
Proposed floor plans, sections & elevations
Planning application submission (if required)
Planning officer queries handled
Party Wall guidance
Agreed design revisions before submission

Planning a loft conversion in London?

London lofts need the same steps as anywhere else — suitability, conversion type, planning route, then Building Regulations drawings and structural calculations — but the planning route deserves extra care. Flats and maisonettes do not have householder Permitted Development rights, and conservation areas and Article 4 directions can remove or restrict them for houses too. • Suitability — head height, roof structure and staircase position • Type — rear dormer, L-shape, hip-to-gable, rooflight or mansard • Planning route — Lawful Development Certificate or householder planning application • Party wall matters — common on terraces and handled as a separate process We check your specific address before drawing. Our loft conversions guide explains each stage in more detail.

Loft conversions across every London borough

We've delivered loft conversions across inner and outer London — Enfield, Haringey, Hackney, Islington, Camden, Waltham Forest, Redbridge, Newham, Barnet, Brent and beyond. We know the typical roof structures of London housing stock and how to maximise usable space within planning constraints.

Your next step

Not sure which conversion suits your loft?

We’ll assess the roof and explain what the space can realistically deliver.

Discuss your project

L-shape, dormer & mansard conversions

London's Victorian and Edwardian terraces are perfect for L-shape dormer conversions — adding a double bedroom plus a shower room. Mansard conversions are common in conservation areas where a standard dormer wouldn't be approved. We design what works for your roof and your council.

Working with London planning authorities

Many London boroughs have Article 4 directions removing Permitted Development rights, plus large conservation areas. We check your address against the local plan, advise on what's likely to be approved, and submit the correct application — planning permission, lawful development certificate or both.

Local

London boroughs & areas we cover

We work across Greater London — here are some of the boroughs and areas we regularly design loft conversions in.

Enfield—Barnet—Haringey—Waltham Forest—Redbridge—Havering—Newham—Hackney—Islington—Camden—Tottenham—Finchley—Edmonton—Walthamstow—Leytonstone—Wanstead—South Woodford—Chingford—Ilford—Romford—Stratford—Hornsey—Crouch End—Muswell Hill—Wood Green—Palmers Green—Southgate—Highgate—Hampstead—Stoke Newington—

FAQ

Frequently asked questions

Which London boroughs do you cover?

We work across Greater London — including Enfield, Barnet, Haringey, Waltham Forest, Redbridge, Havering, Newham, Hackney, Islington, Camden and the inner boroughs. Each borough has its own planning policies, and we handle the submission for your specific council.

Do I need planning permission for a London loft conversion?

Many London loft conversions are Permitted Development, but Article 4 directions, conservation areas and flats often require a full planning application. We check your address against the local plan during the survey.

Can you do L-shape loft conversions on Victorian terraces?

Yes — L-shape dormers are one of the most popular conversions for Victorian and Edwardian terraces across London. They typically deliver a double bedroom plus a shower room over the original back addition.

How long do London loft conversion plans take?

After the survey, we prepare planning or LDC drawings and the submission in approximately 1–2 weeks. A typical householder application has a standard statutory determination period of usually 8 weeks, although councils can take longer. Full-planning technical work is finalised within a further few working days after approval.

Private enquiry