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Conservation CheckPlanning constraints report

SW1A 1AA, Westminster (sample)

Checked
6 November 2026
Reference
SAMPLE
Location
51.50101, -0.14156
Council
City of Westminster

At a glance

Conservation areaInsideRoyal Parks
Article 4Applies1 direction
Listed buildings25Within 250 m
Flood zoneLowNot in zone 2 or 3
Conservation areaRings at 100, 250 and 500 mPin at the checked location
01

Conservation area

Inside

Royal Parks conservation area, managed by City of Westminster.

Houses here have fewer permitted development rights. The work listed in section 06 usually needs planning permission.

02

Article 4 direction

Applies
  • Article 4 Basement Development Permitted Rights Removed

An Article 4 direction removes some permitted development rights. Changes that are normally allowed, such as new windows, doors, porches, painting the front or removing a front wall, can need planning permission. The council's direction lists exactly what it covers.

03

Listed buildings within 250 m

25

Grade I9Grade II*2Grade II1425 in total.

BuildingGradeDistance
South Screen to Buckingham Palace Forecourt Backing Onto Ambassadors' CourtI35 m
Buckingham Palace Forecourt Gate Piers, Gates, Railings and LampsI62 m
7 Lamp Standards on Approach to Victoria Memorial From Buckingham GateII82 m
Buckingham Palace Gates, Railings, Piers and Gate Piers with Lamps Fronting Buckingham Gate and As Entrance to Ambassadors' CourtI95 m
Buckingham Gate Lodge, Gate Piers, Gates and RailingsII*97 m
Buckingham PalaceI98 m
Queen Victoria MemorialI114 m
North Screen to Buckingham Palace Forecourt with Gateway to GardensI116 m
Duchy of Cornwall OfficeII122 m
7-9, Buckingham Gate SW1II129 m
4-6, Buckingham Gate SW1II143 m
3 Lamp Standards on Approach to Victoria Memorial From Birdcage WalkII146 m
13-15, Buckingham Gate SW1II153 m
16, Buckingham Gate SW1II*165 m
17, Buckingham Gate SW1II174 m
Queen Victoria Memorial Gates and Gatepiers, Balustrades, Steps and Retaining Wall with Fountain Framing West End of the MallI178 m
Wellington Barracks West GuardhouseII191 m
14-20, Stafford Place SW1II191 m
Nobel HouseII192 m
20, Buckingham Gate (Including Railings)II198 m
Buckingham Palace, Wall Linking Palace and Riding School, Along Buckingham Palace RoadI199 m
22, Buckingham Gate SW1II209 m
34 Lampstandards Lining Both Sides of RoadII214 m
1, Buckingham Gate SW1II215 m
Buckingham Palace Riding SchoolI241 m

Any work that changes the character of a listed building, inside or out, needs listed building consent. Work near one can also need extra care in a planning application. Grades: I is exceptional interest, II* is particularly important, II is special interest. Each name links to its official Historic England list entry.

04

Tree preservation zones within 100 m

0

No tree preservation zones found within 100 m. Inside a conservation area, trees are also protected: give the council 6 weeks notice before most tree work.

05

Flood zone

Low

This point is not in flood zone 2 or 3 in the published data. Surface water flooding is mapped separately by the Environment Agency.

06

Work that needs planning permission in a conservation area

Rules

  • Cladding the outside

    Covering any outside wall in stone, artificial stone, pebble dash, render, timber, plastic or tiles needs planning permission.

  • Side extensions

    Any extension beyond a side wall of the house needs planning permission, whatever its size.

  • Rear extensions

    Extensions of more than one storey at the back need permission. Single storey ones are capped at 3 m deep, or 4 m for a detached house.

  • Roof extensions

    Dormers and other roof extensions are not permitted development here, so they need planning permission.

  • Sheds and outbuildings

    Any outbuilding, enclosure or pool between a side wall of the house and the boundary needs planning permission.

  • Solar panels

    Panels on a wall that fronts a road or path need permission, and so do freestanding panels placed closer to the road than the house.

  • Satellite dishes and antennas

    Fitting one on a chimney, wall or roof slope that faces onto and is visible from a road needs permission.

  • Trees

    You must give the council 6 weeks notice before cutting down, lopping or topping a tree with a trunk over 75 mm across at 1.5 m above the ground.

  • Demolition

    Knocking down most buildings, and some walls, gates and fences, needs planning permission.