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Free 2026 London Planning ReportPlanning Drawings in Harefield UB9

Subordinate rear extension on a period cottage in Harefield village UB9, Hillingdon
Harefield · UB9 · Hillingdon

Planning Drawings in Harefield UB9

Fixed-fee, MCIAT-chartered planning drawings for Harefield (UB9) homeowners — London Borough of Hillingdon validation and local constraints handled from the start.

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Harefield (UB9) is one of Hillingdon's most rural neighbourhoods — a historic village core wrapped in Green Belt on the northern edge of the borough — and that setting, rather than a standard suburban street pattern, drives how extensions are assessed here. Schemes that keep additions subordinate and in-keeping with the village grain are the ones that move smoothly through the council.

The Harefield Village conservation area protects the scattered building layout, the green and the countryside views, so rooflines, materials and the openness between buildings are treated as part of the heritage. We check both the conservation-area boundary and the surrounding Green Belt designation before advising on what a UB9 plot can realistically support.

Subordinate rear extension on a period cottage in Harefield village UB9, Hillingdon
Isometric illustration of a Harefield UB9 home planning drawings design
Proposed floor plan
Harefield UB9

Planning in Harefield (UB9): what to know before you apply

UB9 combines two of the strongest planning controls in the borough — a rural conservation area and widespread Green Belt — so extension scale and siting matter more here than almost anywhere else in Hillingdon. We design Harefield schemes to read as modest, subordinate additions that respect the village setting, which is what the council looks for.

Typical Harefield housing stock

A dispersed village centre of cottages and period houses around the green and St Mary's Church, mixing medieval and post-medieval buildings with Victorian and 20th-century infill, set against open countryside on the borough's northern edge.

Streets we regularly draw for in Harefield

High Street · Church Hill · Park Lane · Rickmansworth Road

Planning Drawings for Harefield (UB9) homes: the package and the process

Every planning drawings we prepare for an Harefield property is drawn to London Borough of Hillingdon’s validation standards and tuned to the UB9 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

Planning drawings are the scale drawings a London council uses to judge your application: existing and proposed floor plans, elevations, sections and site plans that show the design, scale and neighbour impact of your project. DrawingsDirect produces complete, validation-ready planning drawing sets for extensions, lofts and conversions across London.

What is included in a planning drawing set?

A council will only validate an application that contains the right drawings at the right scale. Our standard planning set covers everything a London validation team expects.

  • Site location plan (1:1250) and block plan (1:500)
  • Existing floor plans, elevations and sections
  • Proposed floor plans, elevations and sections
  • Roof plans where relevant, with heights and materials annotated
  • A design and access or heritage statement where the borough requires one

How are planning drawings different from building regulations drawings?

Planning drawings show what the building will look like and how it sits in its context. Building regulations drawings show how it will be built safely — structure, insulation, fire escape and drainage. Most projects need both; our Complete package covers the two together with structural calculations coordinated in-house.

What a London planning drawing set contains
DrawingTypical scaleWhat it shows
Site location plan1:1250The property in its street context, site edged red
Block plan1:500The building's footprint and position in the plot
Floor plans (existing & proposed)1:100 / 1:50Room layout, walls, openings and the proposed changes
Elevations (existing & proposed)1:100 / 1:50Each face of the building and how it changes
Sections1:100 / 1:50A cut through showing heights, levels and roof form
FAQ

Planning Drawings in Harefield UB9 — FAQs

What scale should London planning drawings be?+
Site location plans are 1:1250, block plans 1:500, and floor plans, elevations and sections are typically 1:100 or 1:50. We format every drawing to your specific borough's requirements.
Do I need an architect to produce planning drawings?+
No. MCIAT-chartered architectural technologists produce the same council-accepted planning drawings with the same professional accountability, and councils assess the drawings, not the author's job title.
How many revisions are included in the fee?+
All of them. The fee is fixed and we redraw free until your council approves — revisions requested by a planning officer never cost you extra.
Can you draw from my existing plans?+
We can work from existing measured drawings, but for accuracy we usually carry out a laser survey so the proposed set matches your property exactly.
Do planning drawings guarantee approval?+
No drawing can guarantee a decision, but drawing to the local plan and validation checklist maximises your odds — and we redraw free until approval.
Do I need planning permission for a loft conversion in Hillingdon?+
Hillingdon's Metro-land semis and detached houses in Ruislip, Eastcote and Ickenham suit hip-to-gable and dormer lofts, which frequently qualify as permitted development within the volume limits. The exceptions are the conservation areas — Ruislip Village, Uxbridge and Northwood — and green-belt land toward the Colne Valley. We check your address and can confirm permitted development with a Lawful Development Certificate.
How does the Colne Valley green belt affect my Hillingdon project?+
On green-belt properties toward the western edge of the borough, extensions are assessed against strict limits on disproportionate additions to the original dwelling. It does not rule out an extension, but scale and siting matter and the case must be evidenced carefully. We confirm whether your property is green belt and design a scheme that stays within policy.
Does proximity to Heathrow affect my plans?+
It can toward the south of the borough, where aircraft-noise considerations may influence habitable-room and glazing design. We evidence these considerations within the application where they apply so the council can validate and approve without repeated revisions.
How long does Hillingdon Council take to decide?+
Hillingdon determines most householder applications within the statutory eight-week period once validated; green-belt and conservation cases can involve additional consultation. We prepare Hillingdon submissions to the council's validation checklist to avoid the drawing queries that cause most delays.
How much do planning drawings cost in Hillingdon?+
We work to a fixed fee agreed upfront, usually around 30% below an architect's charge for the same council-accepted drawings, with free redraws until Hillingdon approves. A dormer loft, a suburban extension and a green-belt case differ in the evidence required, so we confirm the fee once we understand your project rather than billing by the hour.
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