See the accompanying reportfor more photographs

Site:

(Existing Layout)

Tree Constraints Plan

Drawing No:

Title:

/ TCP Rev: 2

Scale: Paper Size: A1Arboricultural Consultants

CROWN

01422 316660

Category A tree

Tree Retention CategoriesStems & canopies shown

Category B tree

Category C tree

Category U tree

Unremarkable trees of low quality and merit. Individual specimensare not considered to be a material planning consideration.

Trees unsuitable for retention due to their very poor condition.

Trees of moderate quality with a life expectancy of 20+ years.Usually maturing trees, or younger trees with good form. Retentionof these trees is desirable though less than Category A trees

Trees of high quality with an estimated life expectancy of 40+ years.Usually large trees with significant presence or smaller trees withexcellent form. Retention of these trees is highly desirable.

Photo 1

= Measured North:MN

1 Canopy spreads are sometimesmeasured to an approximate Ndefined by site features.Often more accurate, especiallywhere rows of trees are notaligned N‐S or E‐W.

BS 5837 Root Protection Area (radius = 12xstem diameter)

T1 = Tree No 1 G2 H3= Group No 2 = Hedge No 3

Root Protection Area needing amendment due to siteconditions, e.g. presence of exising road or building.

Root Protection Area having been amended to accountfor for site conditions

Tree Constraints Plan

Tree Constraints PlanTree Constraints Plan(Existing Layout)

Kings College London Hampstead ResidenceNW3 7ST

1:400

CCL 09166

MN

0 5 10m

Photo 1

Photo 2

Photo 3

Photo 4

Photo 5

Photo 6

Photo 7

Photo 8

Photo 9

10

86

4

29

7

5

3

1

20

18

16

14

12

19

17

15

13

11

26

24

22

27

25

23

21

91.66

101.14

T1

T2

T3

T4

T5

T6

G7T8

T9

T10

T11T12

T13

T14

T15T16

T17T18

G19T20

T21

G22

T23

T24

T25T26

T27

T28

T29

T30

T31

G32

T33

T34

T35

T36

T37

T38

T39

T40

T41

T42

T43

T44

T45

T46

T47

T48

T49

T50

T51

T52

T53

T54

T55

T56

T57

G22

Multiple stemmed bay laurelHt : 4m

HollyHt : 6mDia : 15cm

Cherry laurelHt : 2mMultiple stemmed

ElderHt : 3mMultiple stemmed

Cherry laurelHt : 3mMultiple stemmed

Young birchHt : 4mDia : 4cm

Young goat willowHt : 5mDia : 5cm

MagnoliaHt : 2.5mDia : 5cm

Group of smallcotoneasterHt : 2mDia : 7cm

HollyHt : 4.5mDia : 10cm

Small elderHt : 3mDia : 16cm

T58

T59T60

T61

T62

T63HolliesHt: 5mMulti‐stemmed

T64

T65

Radius (m) m² Square (m)

T1 Cherry 5 2.6 22 4.7

T2 Hawthorn 5 1.6 8 2.8

T3 Turkey Oak 20 12.1 461 21.5

T4 Beech 18 7.3 168 13.0

T5 Lime 16 7.2 163 12.8

T6 Ash 27 13.4 567 23.8

G7 Lime 9 1.9 12 3.4

T8 Lawson Cypress 8 3.7 43 6.6

T9 Lime 10 3.4 35 6.0

T10 Laburnum 5 1.3 5 2.3

T11 Lime 9 2.3 16 4.0

T12 Fig 6 3.6 41 6.4

T13 Fig 5 1.1 4 1.9

T14 Silver Birch 21 6.7 142 11.9

T15 Silver Birch 17 5.0 80 8.9

T16 Rowan 9 3.6 41 6.4

T17 Silver Birch 18 4.8 72 8.5

T18 Silver Birch 18 5.3 88 9.4

G19 Rowan 9 3.4 35 6.0

T20 Turkey Oak 15 6.8 147 12.1

T21 Ash 19 10.8 366 19.1

G22 Sycamore 12 4.2 55 7.4

T23 Cherry 8 6.0 113 10.6

T24 Silver Birch 10 1.8 10 3.2

T25 Cherry 11 2.6 22 4.7

T26 Goat Willow 14 7.3 168 13.0

T27 Ash 5.5 1.4 7 2.6

T28 Holly 5 1.7 9 3.0

T29 Oak 4 1.1 4 1.9

T30 Silver Birch 14 7.6 180 13.4

T31 Holly 5 3.7 43 6.6

G32 Holly 4 1.8 10 3.2

T33 Maidenhair Tree 16 7.6 180 13.4

T34 Pissards Plum 7 4.7 69 8.3

T35 Turkey Oak 26 11.9 443 21.1

T36 Magnolia 6 2.5 20 4.5

T37 Magnolia 5 3.4 35 6.0

T38 Lime 19 10.8 366 19.1

T39 4 2.8 24 4.9

T40 Ash 15 5.0 80 8.9

T41 Holly 6 2.3 16 4.0

T42 Elder 8 2.6 22 4.7

T43 Holly 7 3.1 31 5.5

T44 Holly 5 2.5 20 4.5

T45 Holly 4.5 2.0 13 3.6

T46 London Plane 18 9.6 290 17.0

T47 Leyland Cypress 14 6.6 137 11.7

T48 Sycamore 16 7.8 191 13.8

T49 Hawthorn 6 2.0 13 3.6

T50 Hornbeam 24 15.0 707 26.6

T51 Walnut 11 6.7 142 11.9

T52 Indian Bean Tree 15 8.2 209 14.5

T53 Cherry 11 5.5 96 9.8

T54 13 5.8 104 10.2

T55 Cherry 7 3.2 33 5.7

T56 Monkey Puzzle 6 3.2 33 5.7

T57 Silver Birch 10 2.5 20 4.5

T58 Cherry 14 3.6 41 6.4

T59 Ash 9 2.5 20 4.5

T60 Lombardy Poplar 20 12.5 489 22.1

T61 Ash 14 5.4 92 9.6

T62 Sycamore 13 4.8 72 8.5

T63 Ash 6 4.2 55 7.4

T64 Sycamore 15 6.8 147 12.1

T65 Sycamore 14 6.1 118 10.8

Root Protection AreaHeight (m)SpeciesTree Ref.

Existing building

Tree Removal Plan

Tree Removal Plan

Site:

(Existing Layout with Proposals Overlaid, showing trees to be removed)

Tree Removal Plan

Drawing No:

Title:

/ TRP Rev: 13

Scale: Paper Size: A1

Tree to be removed tofacilitate the proposal

= Measured North:MN

Proposed pruning

Tree to be removeddue to its low quality

Canopy spreads are sometimesmeasured to an approximate Ndefined by site features.Often more accurate, especiallywhere rows of trees are notaligned N‐S or E‐W.

BS 5837 Root Protection Area (radius = 12xstem diameter)

T1 = Tree No 1 G2 H3= Group No 2 = Hedge No 3

Root Protection Area needing amendment due to siteconditions, e.g. presence of exising road or building.

Root Protection Area having been amended to accountfor for site conditions

(Existing Layout with Proposals Overlaid)

Arboricultural Consultants

CROWN

01422 316660

Category A tree

Tree Retention CategoriesStems & canopies shown

Category B tree

Category C tree

Category U tree

Unremarkable trees of low quality and merit. Individual specimensare not considered to be a material planning consideration.

Trees unsuitable for retention due to their very poor condition.

Trees of moderate quality with a life expectancy of 20+ years.Usually maturing trees, or younger trees with good form. Retentionof these trees is desirable though less than Category A trees

Trees of high quality with an estimated life expectancy of 40+ years.Usually large trees with significant presence or smaller trees withexcellent form. Retention of these trees is highly desirable.

(Existing Layout with Proposals Overlaid)

1:400

CCL 09166

MN

0 5 10m

Radius (m) m² Square (m)

T1 Cherry 5 2.6 22 4.7

T2 Hawthorn 5 1.6 8 2.8

T3 Turkey Oak 20 12.1 461 21.5

T4 Beech 18 7.3 168 13.0

T5 Lime 16 7.2 163 12.8

T6 Ash 27 13.4 567 23.8

G7 Lime 9 1.9 12 3.4

T8 Lawson Cypress 8 3.7 43 6.6

T9 Lime 10 3.4 35 6.0

T10 Laburnum 5 1.3 5 2.3

T11 Lime 9 2.3 16 4.0

T12 Fig 6 3.6 41 6.4

T13 Fig 5 1.1 4 1.9

T14 Silver Birch 21 6.7 142 11.9

T15 Silver Birch 17 5.0 80 8.9

T16 Rowan 9 3.6 41 6.4

T17 Silver Birch 18 4.8 72 8.5

T18 Silver Birch 18 5.3 88 9.4

G19 Rowan 9 3.4 35 6.0

T20 Turkey Oak 15 6.8 147 12.1

T21 Ash 19 10.8 366 19.1

G22 Sycamore 12 4.2 55 7.4

T23 Cherry 8 6.0 113 10.6

T24 Silver Birch 10 1.8 10 3.2

T25 Cherry 11 2.6 22 4.7

T26 Goat Willow 14 7.3 168 13.0

T27 Ash 5.5 1.4 7 2.6

T28 Holly 5 1.7 9 3.0

T29 Oak 4 1.1 4 1.9

T30 Silver Birch 14 7.6 180 13.4

T31 Holly 5 3.7 43 6.6

G32 Holly 4 1.8 10 3.2

T33 Maidenhair Tree 16 7.6 180 13.4

T34 Pissards Plum 7 4.7 69 8.3

T35 Turkey Oak 26 11.9 443 21.1

T36 Magnolia 6 2.5 20 4.5

T37 Magnolia 5 3.4 35 6.0

T38 Lime 19 10.8 366 19.1

T39 4 2.8 24 4.9

T40 Ash 15 5.0 80 8.9

T41 Holly 6 2.3 16 4.0

T42 Elder 8 2.6 22 4.7

T43 Holly 7 3.1 31 5.5

T44 Holly 5 2.5 20 4.5

T45 Holly 4.5 2.0 13 3.6

T46 London Plane 18 9.6 290 17.0

T47 Leyland Cypress 14 6.6 137 11.7

T48 Sycamore 16 7.8 191 13.8

T49 Hawthorn 6 2.0 13 3.6

T50 Hornbeam 24 15.0 707 26.6

T51 Walnut 11 6.7 142 11.9

T52 Indian Bean Tree 15 8.2 209 14.5

T53 Cherry 11 5.5 96 9.8

T54 13 5.8 104 10.2

T55 Cherry 7 3.2 33 5.7

T56 Monkey Puzzle 6 3.2 33 5.7

T57 Silver Birch 10 2.5 20 4.5

T58 Cherry 14 3.6 41 6.4

T59 Ash 9 2.5 20 4.5

T60 Lombardy Poplar 20 12.5 489 22.1

T61 Ash 14 5.4 92 9.6

T62 Sycamore 13 4.8 72 8.5

T63 Ash 6 4.2 55 7.4

T64 Sycamore 15 6.8 147 12.1

T65 Sycamore 14 6.1 118 10.8

Root Protection AreaHeight (m)SpeciesTree Ref.

91.66

101.14

T1

T2

T3

T4

T5

T6

G7T8

T9

T10

T11T12

T13

T14

T15T16

T17T18

G19T20

T21

G22

T23

T24

T25T26

T27

T28

T29

T30

T31

G32

T33

T34

T35

T36

T37

T38

T39

T40

T41

T42

T43

T44

T45

T46

T47

T48

T49

T50

T51

T52

T53

T54

T55

T56

T57

G22

Multiple stemmed bay laurelHt : 4m

HollyHt : 6mDia : 15cm

Cherry laurelHt : 2mMultiple stemmed

ElderHt : 3mMultiple stemmed

Cherry laurelHt : 3mMultiple stemmed

Young birchHt : 4mDia : 4cm

Young goat willowHt : 5mDia : 5cm

MagnoliaHt : 2.5mDia : 5cm

Group of smallcotoneasterHt : 2mDia : 7cm

HollyHt : 4.5mDia : 10cm

Small elderHt : 3mDia : 16cm

T58

T59T60

T61

T62

T63HolliesHt: 5mMulti‐stemmed

T64

T65

Proposed new building

Extent of basement parking

Existing building

Only very light trimming of the foilage

required here to enable scaffolding

Canopy of T64 is quite high with only one low rogue branch.

hence very little pruning shall be required to enable the build.

Windows to be located as far from the canopy of T48 as practicable.

Canopy to be pruned back to enable improved lighting conditions in

adjacent rooms. Extent of pruning to be agreed with the local authority.

4.50 m

The canopy of T6 is very high

and sparse so no facilitative

pruning is considered necessary here

Kings College London Hampstead ResidenceNW3 7ST

T50 Foundations

Total RPA(sqm)

RPA affected RPA affected(sqm) (%)

RPA Affected by

707 16.4 2.3

Site:

(Existing Layout with Proposals Overlaid showing only trees to be retained)

Impact Assessment Plan

Drawing No:

Title:

/ IAP Rev: 13

Scale: Paper Size: A1

Tree to be removed tofacilitate the proposal

= Measured North:MN

Proposed pruning

Tree to be removeddue to its low quality

Canopy spreads are sometimesmeasured to an approximate Ndefined by site features.Often more accurate, especiallywhere rows of trees are notaligned N‐S or E‐W.

BS 5837 Root Protection Area (radius = 12xstem diameter)

T1 = Tree No 1 G2 H3= Group No 2 = Hedge No 3

Root Protection Area needing amendment due to siteconditions, e.g. presence of exising road or building.

Root Protection Area having been amended to accountfor for site conditions

(Existing Layout with Proposals Overlaid)

Impact Assessment PlanArboricultural Consultants

CROWN

01422 316660

Category A tree

Tree Retention CategoriesStems & canopies shown

Category B tree

Category C tree

Category U tree

Unremarkable trees of low quality and merit. Individual specimensare not considered to be a material planning consideration.

Trees unsuitable for retention due to their very poor condition.

Trees of moderate quality with a life expectancy of 20+ years.Usually maturing trees, or younger trees with good form. Retentionof these trees is desirable though less than Category A trees

Trees of high quality with an estimated life expectancy of 40+ years.Usually large trees with significant presence or smaller trees withexcellent form. Retention of these trees is highly desirable.

Impact Assessment Plan

(Existing Layout with Proposals Overlaid)

1:400

CCL 09166

MN

0 5 10m

Radius (m) m² Square (m)

T1 Cherry 5 2.6 22 4.7

T2 Hawthorn 5 1.6 8 2.8

T3 Turkey Oak 20 12.1 461 21.5

T4 Beech 18 7.3 168 13.0

T5 Lime 16 7.2 163 12.8

T6 Ash 27 13.4 567 23.8

G7 Lime 9 1.9 12 3.4

T8 Lawson Cypress 8 3.7 43 6.6

T9 Lime 10 3.4 35 6.0

T10 Laburnum 5 1.3 5 2.3

T11 Lime 9 2.3 16 4.0

T12 Fig 6 3.6 41 6.4

T13 Fig 5 1.1 4 1.9

T14 Silver Birch 21 6.7 142 11.9

T15 Silver Birch 17 5.0 80 8.9

T16 Rowan 9 3.6 41 6.4

T17 Silver Birch 18 4.8 72 8.5

T18 Silver Birch 18 5.3 88 9.4

G19 Rowan 9 3.4 35 6.0

T20 Turkey Oak 15 6.8 147 12.1

T21 Ash 19 10.8 366 19.1

G22 Sycamore 12 4.2 55 7.4

T23 Cherry 8 6.0 113 10.6

T24 Silver Birch 10 1.8 10 3.2

T25 Cherry 11 2.6 22 4.7

T26 Goat Willow 14 7.3 168 13.0

T27 Ash 5.5 1.4 7 2.6

T28 Holly 5 1.7 9 3.0

T29 Oak 4 1.1 4 1.9

T30 Silver Birch 14 7.6 180 13.4

T31 Holly 5 3.7 43 6.6

G32 Holly 4 1.8 10 3.2

T33 Maidenhair Tree 16 7.6 180 13.4

T34 Pissards Plum 7 4.7 69 8.3

T35 Turkey Oak 26 11.9 443 21.1

T36 Magnolia 6 2.5 20 4.5

T37 Magnolia 5 3.4 35 6.0

T38 Lime 19 10.8 366 19.1

T39 4 2.8 24 4.9

T40 Ash 15 5.0 80 8.9

T41 Holly 6 2.3 16 4.0

T42 Elder 8 2.6 22 4.7

T43 Holly 7 3.1 31 5.5

T44 Holly 5 2.5 20 4.5

T45 Holly 4.5 2.0 13 3.6

T46 London Plane 18 9.6 290 17.0

T47 Leyland Cypress 14 6.6 137 11.7

T48 Sycamore 16 7.8 191 13.8

T49 Hawthorn 6 2.0 13 3.6

T50 Hornbeam 24 15.0 707 26.6

T51 Walnut 11 6.7 142 11.9

T52 Indian Bean Tree 15 8.2 209 14.5

T53 Cherry 11 5.5 96 9.8

T54 13 5.8 104 10.2

T55 Cherry 7 3.2 33 5.7

T56 Monkey Puzzle 6 3.2 33 5.7

T57 Silver Birch 10 2.5 20 4.5

T58 Cherry 14 3.6 41 6.4

T59 Ash 9 2.5 20 4.5

T60 Lombardy Poplar 20 12.5 489 22.1

T61 Ash 14 5.4 92 9.6

T62 Sycamore 13 4.8 72 8.5

T63 Ash 6 4.2 55 7.4

T64 Sycamore 15 6.8 147 12.1

T65 Sycamore 14 6.1 118 10.8

Root Protection AreaHeight (m)SpeciesTree Ref.

T6

Total RPA(sqm)

RPA affected RPA affected(sqm) (%)

RPA Affected by

577 47 8%

Foundations

T6 Foundations

Total RPA(sqm)

RPA affected RPA affected(sqm) (%)

RPA Affected by

577 36.1 6.3

13.35 m

3.52 m

3.38 m

10.69 m

Total Impact on the RPA of T6 equates to 14.3%

91.66

101.14

6.40 m

6.20 m

Only very light trimming of the foilagerequired here to enable scaffolding

No works proposed in this area.Trees to be fenced off and aConstruction Exclusion Zone to be created.No impact on trees.

All proposed works to be within the footprint of the existing building.Therefore no impact on tree roots or canopies.No additional windows to be facing the trees.Therefore no increase in pressure to remove or overly‐prune.

In this area it is proposed to utilise a pile and raft foundation.No excavation is proposed within more than 5% of RPAs.This has been confirmed by a survey of existing levelsand a study of Cross‐Sectional drawings.

No impact on trees in this area

T1

T2

T3

T4

T5

T6

G7T8

T9

T10

T11

T20

T21

G22

T31

G32

T33

T34

T35

T36

T37

T38

T39

T40

T41

T42

T45

T46

T47

T48

T49

T50

T51

T52

T53

T54

T55

T57

G22

Cherry laurelHt : 2mMultiple stemmed

ElderHt : 3mMultiple stemmed

Cherry laurelHt : 3mMultiple stemmed

MagnoliaHt : 2.5mDia : 5cm

Group of smallcotoneasterHt : 2mDia : 7cm

HollyHt : 4.5mDia : 10cm

T58

T61

T62

T63HolliesHt: 5mMulti‐stemmed

T64

T65

No impact on trees in this area

No impact on trees in this area

No impact on trees in this area

Trench 3: Trial excavations in this area (hatched purple) revealed very littlerooting activity (maximum root diameter 15mm). See sample photos in Inset A.Contiguous or sheet piling is proposed to ensureno disturbance of soils beyond the footprint of the basement car‐park.The impact of severing the small roots encountered in the trial excavationshall be more than offset by canopy pruning necessary to enable the pilingrig to operate.The clearance distances required for the piling rig are yet to be clarified.

Extent of basement car park

Exte

nt o

f bas

emen

t car

par

k

Extent of basement car park

Exte

nt o

f bas

emen

t ca

r par

k

Exte

nt o

f bas

emen

t ca

r par

k

Extent of basement car park

Proposed new building

Extent of basement parking

Existing building

Low impact landscaping proposed in this area.No excavation over RPAs.No significant raising of levels over RPAs.No additional impervious surfaces over RPAs.

Existing light well.No impact on trees.

8.57 m

1.91 m

Inset A: sample photos of trial Trench 3 around T20.More photographs in Section 10.

Trench 1: Trial excavations in this area (hatched purple) revealed relatively low rooting activity(maximum root diameter 35mm, all other roots were less than 8mm dia.).See sample photos in Inset B.Contiguous or sheet piling is proposed to ensureno disturbance of soils beyond the footprint of the basement car‐park.As mitigation, we recommend that soild throughout the rest of the RPA are amelioratedby terraventing and the application of a nutritious mulch and worms.

Trench 2: Trial excavations in this area (hatched purple) revealed moderate rooting activitybut no large roots (maximum roots encountered measured diameter 35mm, 30mm and 20mm)See sample photos in Inset C.Contiguous or sheet piling is proposed to ensureno disturbance of soils beyond the footprint of the basement car‐park.As mitigation, we recommend that soild throughout the rest of the RPA are amelioratedby terraventing and the application of a nutritious mulch and worms.

Canopy of T64 is quite high with only one low rogue branch.hence very little pruning shall be required to enable the build.

No building works proposed in the RPA of T5

Windows to be located as far from the canopy of T48 as practicable.Canopy to be pruned back to enable improved lighting conditions inadjacent rooms. Extent of pruning to be agreed with the local authority.

Exacation over only 2.7% of the RPA of T50.Piling proposed for foundations to ensure nodisturbance of soils beyond the footprint

Improved juxtaposition between T50and buildings in this area.

Inset B: Sample photos of trial Trench 1 east of T6.Rooting activity was low.More photographs in Section 8.

Inset C: Sample photo showing largest root (35mm dia.)in trial Trench 2 south of T6.More Photographs in Section 10.

4.50 m

The canopy of T6 is very highand sparse so no facilitativepruning is considered necessary here

Kings College London Hampstead ResidenceNW3 7ST