We can get you planning permission for your extension!

Barnet Planning Permission & Architectural Services

Our Barnet Planning Consultants & Architectural Consultants at 4D Planning are here to help you obtain planning permission as quickly as possible for a fraction of the price of a typical architect. Anyone can produce drawings, but the skill is knowing how to obtain planning permission!

We make the entire planning and building control process easy and simple. We offer a FREE initial consultation and assist with managing the entire planning application submission process to Barnet Planning Department in the council. We then ensure that the development complies fully with the building regulations and is signed off by Building Control. We can also recommend local builders in Barnet who have worked on our other successful projects.

Planning Advice

We undertake a full property site assessment by looking into the history and context of the site and its surroundings.

Planning Applications

Following the initial site appraisal, a site visit/survey is carried out to gather all the dimensions and required information of the existing site. We then produce all the drawings and planning documents for the application.

Architectural Drawings

4D Planning can produce building regulations for Building Control and construction drawings for tender. We can also provide lease plans and other types of drawings.

Building Regulations

Building Regulations promote high standards for construction and energy efficiency of buildings.

Transport Planning

Our services include: Transport Assessments, Travel Plans / Sustainable Travel Statements, Parking Surveys, Traffic Surveys and Delivery and Servicing Management Plans.

3D Visuals

One of our specialities is to provide our clients with 3 dimensional realistic renders (CGI’s) of proposed and existing schemes. These visuals can be used for planning or marketing purposes and add a lot of value to any project.

Services in London Borough of Barnet

  • Professional Planning Advice, Initial consultations and pre-application submissions
  • Barnet Planning Applications for Change of Use
  • Barnet Planning Applications for Residential Extensions and Conversions
  • Applications to remove or vary a planning condition.
  • Architectural Drawings for Barnet Planning Applications
  • Building Regulations Drawings for Building Control
  • Tender Packages for the Builders
  • 3D Visuals, 2D Drawings and illustrations, CGI renders and models
  • Barnet Planning Appeals, Retrospective planning applications
  • Lease Plans and Maps
  • Transport Planning Assessments, Parking Surveys
  • Heritage and Planning Reports and more.
  • Prior Approval / notification Applications, Permitted Development Rights schemes
  • Certificate of Lawful Use, Established Use
  • Conservation Area Developments, Listed Building Consent

Our projects in Barnet include: Basements, loft conversions, rear extensions, side infill extensions, garage conversions, shop front alterations, advertisement consent, replacement of windows, roof terraces and lots more.

Samples of our projects in Barnet

55 Sheaveshill Avenue, Barnet, NW9 6SD – Change of Use of from C3 to C3/D1 (Doctor’s Surgery) on the ground floor and 2 bedroom flat on the first floor; Single Storey Rear Extension; Associated Refuse Store; Cycle Parking; Vehicle Parking for 5 cars.

5 Shirehall Close, London, NW4 2QR – Roof extension including a rear and wrap around side dormer windows and 2no. roof lights to the front roof slope to facilitate a loft conversion.

1 Dinsdale Gardens, Barnet, EN5 1HE – A hip to gable roof extension with a full-width rear dormer (if possible under permitted development) and conversion of the garage into a habitable room

6B Bertram Road, NW4 3PN – Erection of french doors and railings to create Juliette balcony.

178-180 Long Lane, N3 2RA – Change of use of ground floor office unit (use class B1) into D1 use (for a veterinary surgery) including ancillary A1 (for sale of pet goods and accessories).

7 Sherwood Road, Hendon, NW4 1AE – Part single, part two storey side and rear extensions. Garage conversion into habitable room installation of windows to replace the garage door. Roof extensions involving rear and side dormer windows with 2 no. roof lights to front elevation to facilitate a loft conversion. Alterations to fenestration at all floors and associated internal alterations.

58A Crescent Road, Barnet, EN4 9RF – Part single, part two storey side/rear extension and alterations to rear garden.

3 Audley Road, Hendon, NW4 3EY – Roof extension involving rear dormer window with 3no. roof lights to front elevation to facilitate a loft conversion.

3 Audley Road, London, NW4 3EX – Single storey rear extension

38 Audley Road, London, NW4 3EY – Roof extension involving rear dormer window, 3no. rooflights to front elevation to facilitate a loft conversion

36 Cedars Close, NW4 1TN – Building regulations for construction of the basement and other internal alterations.

2 Lytton Close, London, N2 0RH – Planning and Listed Building Consent for conversion of garage into habitable space. Removal of side access door and installation of 2no. windows. Associated internal alterations.

14 Park Road, Barnet, EN5 5SQ – Single storey side extension and two-storey side extension with associated alterations to the roof and rear projection. Removal of existing chimney breasts. Rendering to first-floor front elevation including replacement roof. Alterations to fenestration.

18 Lytton Close, London, N2 0RH – Listed building consent, Planning Permission and Hampstead GS Trust Approval for – replacement of existing windows with new double glazed windows. Enlargement of existing ground floor rear door and windows to create double door and window. Internal alterations including removal and relocation of ground floor partition walls, installation of ‘stair lift’ on stairs between ground and first floor, restoration of fire places, pet hole in the kitchen wall, new laminate flooring and internal enlargement of the master bedroom. Alterations to front garden including new side gate to replace existing and new hard standing. Enlargement of existing ground floor rear door and windows to create double door and window. Removal of ground floor partition wall.

18 Glebe Crescent, NW4 1BU – Two-storey rear extension following demolition of the existing shed. Roof extension.

18 Glebe Crescent, NW4 1BU – Roof extension involving hip to gable, rear and side dormer windows and roof lights on front roof slope to facilitate a loft conversion. Conversion of garage into habitable room including replacement of garage door with new window. New
front porch.

15 Neeld Crescent, NW4 3RP – Single story rear extension with excavation to the garden to create lower ground floor level.

126 Cleveland Gardens, NW2 1DU – Rear dormer window with Juliette balcony and roof lights to facilitate gable loft
conversion, new front porch, demolition of existing garage and erection of new ancillary outbuilding, single storey rear extension.

3 Glebe Crescent, Hendon, NW4 1BT – Replacement of existing rear dormer windows with 2no. Juliette balconies

3 Glebe Crescent, Hendon, NW4 1BT  Single storey side extension, loft conversion with hip to gable roof extension.

3 Glebe Crescent, Hendon, NW4 1BT – Double storey side extension including an extension to roof with 2no. roof lights.

6 Golders Gardens, NW11 9BT – Hip to gable roof extension with dormer window and roof lights.

140 The Vale, NW11 8SN – Prior Approval for 5m rear extension.

126 Cleveland Gardens, NW2 1DU – Rear dormer window with Juliette balcony and roof lights to facilitate gable loft conversion, new front porch, demolition of existing garage and erection of new ancillary outbuilding, single storey rear extension

22 Golders Rise, London, NW4 2HR – Single storey rear extension with a proposed depth of 6 metres from original rear wall with Sukka Roof.

3 Langley Row, Hadley Highstone, Barnet, Hertfordshire, EN5 4PB – Erection of single storey orangery at the rear elevation.

29 Garrick Avenue, NW11 9AR – Prior Approval for 6m rear extension.

25 Cheyne Walk, NW4 3QH – Single-storey side extension including new front bay window following demolition of existing garage.

16 Woodlands, NW11 9QL – Rear dormer with Juliette balcony, new roof lights to the front to facilitate partial hip to gable loft conversion. New front porch, Single storey rear extension.

66 The Drive, NW11 9TL – Ground Floor side and rear extensions, hip to gable roof extension and conversion to 2 flats.

61 Hermitage Lane, NW2 2HE – Double storey side extension, rear extension with new basement and loft extension.

35 Cloister Gardens, Edgware, Middx, HA8 9QJ – Roof extension with a wrap around both sides and rear dormer with a rear Juliet balcony to facilitate a loft conversion.

152-154 Golders Green Road, NW11 8HE – Insertion of 4 new double glazed uPVC windows to side elevation.

100-102 Hamilton Road, NW11 – Demolition of existing building and the construction of a two-story building and a room in the roof space.

5 Shirehall Close, Hendon, NW4 – Lawful Development Certificate to build a roof extension including a rear and wrap around side dormer windows and 2no. roof lights to the front roof slope to facilitate a loft conversion.

1 Braemar Gardens, Colindale, NW9 5LA – Part single, part two-storey side and rear extension. New timber decking to rear. Roof extension involving hip to gable, rear dormer window, roof lights. Single storey rear extension. New front porch.

8 Gloucester Drive, London, NW11 6BH – Double storey rear extension, a loft conversion, garage conversion & front porch extension.

22 Mayfield Gardens, London, NW4 2QA – Loft conversion with rear and side dormers.

13 Highcroft Gardens, NW11 0LY – 6m single-storey rear extension under prior approval. Side extension under Planning Permission.

Cecilia Cottage, 86 Wise Lane, London NW7 2RD – Non-material minor amendment to include size alterations to the detached garage and insertion of a single automated garage door facing the dwelling-house.

100-102 High Road, London, N2 9EB – Alterations to shop front including insertion of 1no. entrance door and staircase to facilitate access to first floor flat.

44 Brackenbury Road, N2 0ST – Single-storey rear extension.

21 Mayfield Gardens, Hendon, NW4 2PY – Roof extension involving an extension of the existing rear dormer window to create a rear/both sides wrap around dormer window and 1 no. roof light to front elevation, to facilitate a loft extension.

262 Regent Park Road, London, N3 3HN – Change of use from Use Class B1 (offices) to Use Class C3 to provide 5 units.

Stable End, Hedgerow Lane, Arkley, Barnet – Two-storey side extension including dormer window to first-floor front slope, extension of existing garage and insertion of new garage doors.

45 Green Lane, London, NW4 2AG – Single storey rear extension.

8 Gloucester Drive, London, NW11 6BH – Part single, part two storey rear extension with loft conversion including wrap around side dormers new front porch and a garage conversion.

129 Sherrards Way, Barnet, EN5 2BS – Double storey side extension and garage extension.

17 Princes Park Avenue, NW11 0JP – Single storey front extension including new front porch. Part single, part two storey rear extension. Part first floor side infill extension. 3no. rooflights to front elevation.

2 St. Andrews Road, NW11 0PJ – Single storey side extension.

169 High Street, Barnet, EN5 5TD – Change of use from B1 (office) to D1.

79 Station Road, Hendon, London NW4 4PH – 2 storey rear extension.

3 Queen’s Gardens, Hendon, NW4 2TR – Hip to gable roof extension, rear dormer and rooflights, PD application.

6 Elsinore Gardens, London, NW2 1SS – Loft conversion with rooflights.

64 Woodlands, Golders Green, London, NW11 9QU – Erection of ancillary outbuilding.

5 Golders Rise, Hendon, NW4 2HX – Rear dormer, front rooflights, front porch, internal changes, building regulations and lawful development app.

27 Glenmere Avenue, Mill Hill, NW7 2LT – Single storey rear extension.

27 Glenmere Avenue, Mill Hill, NW7 2LT – Non-material amendments

9 Mayfield Gardens, London, NW4 2PY – Single storey side extension, extension to front porch. Roof extension, including wrap around dormer window, and 2no. rooflights to front roofslope.

56 Ashbourne Avenue, London, NW11 0DS – Single storey rear extension. Front porch extension.

1 Wakemans Hill Avenue, London, NW9 0TA – Rear extension to doctors surgery.

3 Langley Row, London, EN5 4PB – Single storey rear extension.

1388 High Road, Whetstone, London, N20 9BH – Change of use to Mathnasium education centre.

386a Finchley Road, London, NW2 2HP – Second floor rear extension including formation of terrace.

788a Finchley Road, NW11 7TJ – Erection of a coffee hut at garden centre (retrospective).

25 Southfields, Hendon, NW4 4LX – Raise roof height of outbuilding and new air-con unit.

6A Russell Gardens, London, NW11 9NL – Convert loft, roof extension to first floor flat.

63A Colindale Avenue, London, NW9 5HB – Erection of a single storey storage unit. New vehicular access to provide off street parking/loading area.

15 Petworth Road, North Finchley, London N12 9HE – 6m prior approval rear extension.

Flat 3, 42 Fortis Green, London, N2 9EL – Successful appeal for retention of roof terrace with boundary enclosures.

313 Watford Way, London, NW4 4TG – Loft conversion with rear dormer and rooflights.

142 Dollis Hill, London, NW2 6RF – Single storey rear extension.

Flat 3, 42 Fortis Green, London, N2 9EL – Successful appeal for retention of roof terrace with boundary enclosures.

Who We Are?

Planning Permission Application Experts in Barnet

The 4D Planning team consists of Chartered Planning Consultants, Architectural Technicians and Designers. Our Chartered Planners have many years of public sector work experience working for various Planning Authorities and Councils.

Our objective is to help our clients obtain planning permission from Barnet Council as quickly as possible and to make the planning process as straightforward and stress free as possible. We produce all the Architectural Drawings for Planning, Building Regulations for Building Control Approval and Tender Packs for Construction. We have a quick turnaround and we are usually never beaten on price.

All our consultants have years of knowledge and expertise assisting our client with residential and commercial developments including Listed Buildings in Barnet Borough.  We take pride in our high success rate with Planning Permission Applications in Barnet Council!

Planning Application. December 2019.
“Elie provided us with such a great support during the very difficult and emotional time for us as the planning application took 5 months to approve but he was always there to support and help us when we needed it the most. I would recommend Elie to anyone as he will always do his best! Service with integrity and a very personal approach !”


Loft Conversion. August 2019.
“I used 4D Planning for a planning application of an existing loft conversion. Working with 4D planning was simple and effective. I received clear guidance and Elie (4D Planning) was always available for clarification when I had to decide a course of action.
4D Planning did everything, drawings and paperwork, and made a successful application on my behalf for a Lawful Development Certificate. So I definitely recommend them.”

Marco C.

6 Reasons to choose 4D Planning


London Office

86-90 Paul Street, 3rd Floor
London, EC2A 4NE
We cover the following areas in Barnet:
Hendon, Golders Green, Brent Cross, Finchley, Edgware, East Finchley, Hampstead, West Hampstead, Temple Fortune, Totteridge, East Barnet, Woodside Park, Mill Hill, Burnt Oak, Colindale, Whetstone, High Barnet, Arkley, Cricklewood, Childs Hill, Muswell Hill, Colney Hatch, Hampstead Garden Suburbs & Oakleigh Park
and the following post codes:
N2, N12, NW4, N3, N14, NW7, N10, N20, NW9, N11, NW2 and NW11.