
Floor Plans in Blackfen DA15
Fixed-fee, MCIAT-chartered floor plans for Blackfen (DA15) homeowners — London Borough of Bexley validation and local constraints handled from the start.
Blackfen in DA15 is a textbook 1930s Metro-land suburb of uniform interwar semis on wide, tree-lined avenues. The bulk of our work here is single-storey rear extensions, loft conversions and hip-to-gable roof works on family semis that generally sit within permitted development.
Small conservation pockets such as The Oval and The Hollies, plus the estate's overall visual consistency, mean London Borough of Bexley looks closely at how additions read against matching neighbours, so we detail dormers and extensions to preserve the street rhythm while keeping householder schemes fast to approve.


Planning in Blackfen (DA15): what to know before you apply
No published householder Article 4 direction applies in Blackfen; the main sensitivities are the uniform interwar character and small conservation pockets including The Oval, The Hollies and the Willersley and Braundton Avenue area. Most semis away from those pockets retain full permitted development rights for rear and roof works.
Typical Blackfen housing stock
Blackfen is a classic 1930s Metro-land suburb of uniform interwar semi-detached houses laid out along broad avenues. Consistent bay-fronted, hip-roofed pairs make rear extensions, loft conversions and hip-to-gable roof works the staple projects, with continuity between matching neighbours a regular design consideration.
Streets we regularly draw for in Blackfen
Wellington Avenue · Rutland Avenue · Cavendish Avenue · Montrose Avenue
Floor Plans for Blackfen (DA15) homes: the package and the process
Every floor plans we prepare for an Blackfen property is drawn to London Borough of Bexley’s validation standards and tuned to the DA15 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.
Not every project needs a full planning drawing set. If you are selling or letting a property, drawing up a lease, recording a layout before a refurbishment, or simply want an accurate plan of your home, what you need is a floor plan — a scaled, dimensioned drawing of each level, measured directly from the property rather than estimated from an old plan or an estate agent's rough sketch. DrawingsDirect produces floor plans from a laser-measured site visit, so room sizes, wall thicknesses and door and window positions are accurate, not approximate.
Floor plans are commonly used for estate agency marketing and Rightmove or Zoopla listings, for lease plans required by a mortgage lender or solicitor, for landlords documenting a rental property's layout, or as a straightforward existing-layout record before any building work is decided. They are lighter than a full architectural or planning drawing set — there is no design work, no application, and no borough-specific requirements to satisfy — so turnaround is fast and the fee is correspondingly lower. If you later decide to extend, convert a loft or apply for planning permission, the same laser survey can usually be reused as the base for those drawings rather than re-measuring the property from scratch.
What are floor plans used for?
Floor plans serve several distinct purposes in London property: estate agents use them to market a sale or letting alongside photographs, giving buyers and tenants an accurate sense of layout and scale that a floor plan on its own can convey better than photos; solicitors and lenders often require a lease plan showing the demise of a flat within a building, particularly for leasehold sales or re-mortgages; landlords use them to document a property's layout for reference, insurance or portfolio management; and homeowners use them simply to have an accurate record of their existing layout, whether for their own reference or as the first step before considering any building work.
How accurate are laser-measured floor plans?
We measure every floor plan on site using a laser distance meter rather than a tape measure or estimation from photographs, which keeps room dimensions, wall thicknesses and door and window positions accurate to within a few millimetres. This matters more than it might seem: an estate agent's marketing plan that overstates a room's size can mislead a buyer and cause problems at survey stage, while a lease plan used for legal purposes needs to accurately reflect what a leaseholder actually owns. A laser-measured plan also means that if you later want to use it as the existing-layout drawing for a planning application, it is already accurate enough to build proposed drawings on top of, rather than needing to be re-measured.
| Floor plans | Full planning drawing set | |
|---|---|---|
| Purpose | Record of existing layout | Existing layout plus a designed proposal |
| Includes a proposed design | No | Yes |
| Submitted to the council | No | Yes, via the Planning Portal |
| Typical turnaround | A few days | Around 7 days from survey |
| Fee guide | From £450 | From £1,600 |
Floor Plans in Blackfen DA15 — FAQs
How much do floor plans cost in London?+
How long does it take to get floor plans?+
Can floor plans be used for a lease or mortgage application?+
Can I reuse my floor plans if I later want to extend or convert my loft?+
Do you provide floor plans for estate agents?+
Do I need planning permission for an extension in Bexley?+
Can I build a bigger extension because Bexley plots are larger?+
What extra control applies in Old Bexley Village or around Danson Park?+
How long does Bexley Council take to decide?+
How much do planning drawings cost in Bexley?+
Get your free Blackfen planning assessment
Tell us your Blackfen (DA15) address and ambition — we'll confirm feasibility, local constraints and a fixed fee within one working day.