Find All Cheung Sha Wan Office / Commercial Property For Rent

Hot Offices and Commercial Properties for Rent In Cheung Sha Wan

King's TowerCheung Sha Wan
HK$ 50,000 / monthHK$ 55,000 / month
GFA 3,055'
909 Cheung Sha Wan RoadCheung Sha Wan
HK$ 229,892 / month
GFA 8,842'[Unverified]
909 Cheung Sha Wan RoadCheung Sha Wan
HK$ 124,488 / month
GFA 4,788'
Sing Shun CentreCheung Sha Wan
HK$ 81,120 / month
GFA 4,056'

Commercial Properties For Rent In Cheung Sha Wan

New air conditioner, renovation and management, ready to rent and use

King's Tower

Gross 3,055 sq. ft.

KowloonCheung Sha WanCheung Sha WanKing Lam Street

Enquire Now

潘智康 DONALD POON

License No S-210167 (Verified)

HK$ 55,000 / month

HK$ 50,000 / month

Price Reduced on 08 Oct 2025

Lai Chi Kok Fully 4056SQFT Fitted Unit, Revitalized Commerical Building, Suitable For Various Industries, With Attached Parking Lot | Sing Shun Centre 誠信中心 _0

NewLai Chi Kok Fully 4056SQFT Fitted Unit, Revitalized Commerical Building, Suitable For Various Industries, With Attached Parking Lot

Sing Shun Centre

Gross 4,056 sq. ft.

KowloonCheung Sha WanCheung Sha WanCastle Peak Road

Enquire Now

Miss Lee (Ownership NOT Verified)

HK$ 81,120 / month

Updated on 23 Jan 2026

Office Unit for Rent at 909 Cheung Sha Wan Road | 909 Cheung Sha Wan Road 長沙灣道909號 _0

NewOffice Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 1,759 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 47,493 / month

Updated on 17 Jan 2026

New air conditioner, renovation and management, ready to rent and use

King's Tower

Gross 3,055 sq. ft.

KowloonCheung Sha WanCheung Sha WanKing Lam Street

Enquire Now

潘智康 DONALD POON

License No S-210167 (Verified)

HK$ 55,000 / month

HK$ 50,000 / month

Price Reduced on 08 Oct 2025

Full-floor unit, suitable for headquarters | 909 Cheung Sha Wan Road 長沙灣道909號 _0

NewFull-floor unit, suitable for headquarters

909 Cheung Sha Wan Road

Gross 8,842 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

潘智康 DONALD POON

License No S-210167 (Verified)

HK$ 229,892 / month

Updated on 04 Feb 2026

Fully furnished office space, ready to rent and use immediately. | 909 Cheung Sha Wan Road 長沙灣道909號 _0

NewFully furnished office space, ready to rent and use immediately.

909 Cheung Sha Wan Road

Gross 4,788 sq. ft.

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

潘智康 DONALD POON

License No S-210167 (Verified)

HK$ 124,488 / month

Updated on 04 Feb 2026

NewLai Chi Kok Fully 4056SQFT Fitted Unit, Revitalized Commerical Building, Suitable For Various Industries, With Attached Parking Lot

Sing Shun Centre

Gross 4,056 sq. ft.

KowloonCheung Sha WanCheung Sha WanCastle Peak Road

Enquire Now

Miss Lee (Ownership NOT Verified)

HK$ 81,120 / month

Updated on 23 Jan 2026

NewOffice Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 1,759 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 47,493 / month

Updated on 17 Jan 2026

Office Unit for Rent at Trade Square

Trade Square

Gross 3,670 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 76,703 / month

HK$ 76,813 / month

Price Increased on 11 Dec 2025

NewOffice Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 4,788 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 158,004 / month

Updated on 05 Dec 2025

Office Unit for Rent at Trade Square

Trade Square

Gross 21,090 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 463,980 / month

Updated on 25 Nov 2025

Office Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 2,313 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 69,390 / month

Updated on 25 Nov 2025

Office Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 3,029 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 81,783 / month

Updated on 25 Nov 2025

Office Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 1,525 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 39,650 / month

Updated on 25 Nov 2025

Office Unit for Rent at Trade Square

Trade Square

Gross 5,680 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 118,144 / month

Updated on 25 Nov 2025

Office Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 1,715 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 46,305 / month

Updated on 25 Nov 2025

Office Unit for Rent at Trade Square

Trade Square

Gross 5,670 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 117,993 / month

HK$ 119,070 / month

Price Increased on 13 Sep 2024

Office Unit for Rent at 909 Cheung Sha Wan Road

909 Cheung Sha Wan Road

Gross 4,788 sq. ft.

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 143,640 / month

HK$ 124,488 / month

Price Reduced on 13 Jun 2025

Office Unit for Rent at Trade Square

Trade Square

Gross 4,710 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 105,975 / month

Updated on 25 Nov 2025

Office Unit for Rent at Trade Square

Trade Square

Gross 8,960 sq. ft.[Not Verified]

KowloonCheung Sha WanCheung Sha WanCheung Sha Wan Road

Enquire Now

Con Lam

License No C-018688 (Verified)

HK$ 205,184 / month

Updated on 25 Nov 2025

Market Trends And Property Prices For Cheung Sha Wan

Average Listing Rental Price per square feet in March 2026 For Commercial properties in Cheung Sha Wan

HK$ 25 / sq. ft.

↓4% (Last month HK$ 26 / sq. ft.)

About Renting Office / Commercial Property In Cheung Sha Wan

Cheung Sha Wan Cheung Sha Wan district is located at the South West of the Kowloon Peninsular. It is mainly residential use of land. The population of the district is around 405,869, which is quite high in Hong Kong. The age median is diverse, which the peaks of age are 32 and 52.

Transport Links To Cheung Sha Wan

MTR

荃灣綫 Tsuen Wan Line

Cheung Sha Wan StationMTR Station

東涌綫 Tung Chung line

Nam Cheong StationMTR Station

西鐵綫 West Rail Line

Nam Cheong StationMTR Station

BUS

CITYBUS

A20

ToAirport (Ground Transportation Centre)

Cheung Sha Wan Plaza, Chueng Sha Wan RoadStation

A20

ToHung Hom Station

Lai Chi Kok Station, Cheung Sha Wan RoadStation

A21

ToAirport (Ground Transportation Centre)

Hoi Lai Estate, Sham Mong RoadStation

A21

ToHung Hom Station

Aquamarine, Sham Mong RoadStation

E21

ToAsiaWorld-Expo

Cheung Sha Wan Plaza, Chueng Sha Wan RoadStation

E21

ToTai Kok Tsui (Island Harbourview)

Lai Chi Kok Station, Cheung Sha Wan RoadStation

E21A

ToTung Chung (Yat Tung Estate)

Cheung Sha Wan Plaza, Chueng Sha Wan RoadStation

E21A

ToHo Man Tin (Oi Man Estate)

Lai Chi Kok Station, Cheung Sha Wan RoadStation

E21C

ToAircraft Maintenance Area

Cheung Sha Wan Plaza, Chueng Sha Wan RoadStation

E21C

ToTai Kok Tsui (Island Harbourview)

Lai Chi Kok Station, Cheung Sha Wan RoadStation

N21

ToAirport (Ground Transportation Centre)

Cheung Sha Wan Plaza, Chueng Sha Wan RoadStation

N21

ToTsim Sha Tsui (Star Ferry)

Lai Chi Kok Station, Cheung Sha Wan RoadStation

N21A

ToAirport (via Yat Tung Estate)

Cheung Sha Wan Plaza, Chueng Sha Wan RoadStation

N21A

ToTsim Sha Tsui (Star Ferry)

Lai Chi Kok Station, Cheung Sha Wan RoadStation

KOWLOON MOTOR BUS

N241

ToCheung Wang

Fat Tseung StreetStation

N241

ToHung Hom Station

Fuk Wa StreetStation

ToSo Uk

Cheung Sha Wan Railway StationStation

ToStar Ferry

Tonkin StreetStation

ToMei Foo

Azalea HouseStation

ToLok Wah

Cheung Wah StreetStation

ToCheung Sha Wan

Un Chau Shopping CentreStation

ToChuk Yuen Estate

Wing Lung StreetStation

ToCheung Sha Wan

Un Chau Shopping CentreStation

ToCheung Sha Wan

Un Chau Shopping CentreStation

ToTsz Wan Shan (North)

Wing Lung StreetStation

ToMEI FOO

Cheung Lai Street Cheung Sha WanStation

ToCHOI FOOK

Tai Nan West StreetStation

ToStar Ferry

Fuk Wa StreetStation

ToLai Chi Kok

Fat Tseung StreetStation

ToStar Ferry

Fuk Wa StreetStation

ToMei Foo

Fat Tseung StreetStation

ToKowloon City Ferry

Fuk Wa StreetStation

ToMei Foo

Un Chau Shopping CentreStation

ToNgau Tau Kok

Cheung Wah StreetStation

ToKowloon City Ferry

Lai Kok Bus TerminusStation

ToLei Yue Mun Estate

Wing Lung StreetStation

ToSo Uk

Po Hei CourtStation

ToTSIM SHA TSUI EAST (MODY ROAD)

Banyan GardenStation

12A

ToCHEUNG SHA WAN (SHAM MONG ROAD)

Fu Cheong EstateStation

12A

ToWhampoa Garden

Fu Cheong EstateStation

ToOi Man(Circular)

Fu Cheong EstateStation

ToAllway Gardens

Cheung Sha Wan Bus TerminusStation

30X

ToWhampoa Garden

Tai Nan West StreetStation

30X

ToAllway Gardens

Lai Chi Kok Railway StationStation

31B

ToOlympic Station

Tung Chau West StreetStation

31B

ToShek Lei (Tai Loong Street)

Lai Chi Kok Railway StationStation

ToOlympic Station

Tai Nan West StreetStation

ToShek Wai Kok

Lai Chi Kok Railway StationStation

33A

ToMong Kok (Park Avenue)

Lai Chi Kok Railway StationStation

33A

ToTsuen Wan (Nina Tower)

Lai Chi Kok Railway StationStation

35A

ToTsim Sha Tsui East

Tai Nan West StreetStation

35A

ToOn Yam

Lai Chi Kok Railway StationStation

36A

ToCHEUNG SHA WAN (SHAM MONG ROAD)

Fat Tseung StreetStation

36A

ToLei Muk Shue Estate Public Transport Interchange

Lai Chi Kok Railway StationStation

36B

ToJordan (To Wah Road)

Lai Chi Kok Railway StationStation

36B

ToLei Muk Shue Estate Public Transport Interchange

Un Chau Shopping CentreStation

36X

ToJordan (To Wah Road)

Kom Tsun StreetStation

ToKwai Shing (Central)

Lai Chi Kok Railway StationStation

ToOlympic Station

Lai Chi Kok Railway StationStation

ToLaguna City

Cheung Lai Street Cheung Sha WanStation

ToTsuen Wan (Belvedere Garden)

Cheung Lai Street Cheung Sha WanStation

40A

ToKWUN TONG

Cheung Lai Street Cheung Sha WanStation

40A

ToKWAI HING STATION

Cheung Lai Street Cheung Sha WanStation

ToKowloon City Ferry

Kwong Cheung Street Cheung Sha WanStation

ToCheung Ching

Cheung Sha Wan PathStation

ToShun Lee

Tai Nan West StreetStation

ToCHEUNG HONG

Cheung Sha Wan PathStation

42A

ToJordan (To Wah Road)

Tai Nan West StreetStation

42A

ToCheung Hang

Cheung Sha Wan PathStation

43C

ToISLAND HARBOURVIEW

Lai Chi Kok StationStation

43C

ToCHEUNG HANG

Cheung Sha Wan PathStation

ToMong Kok East Station

Lai Chi Kok Railway StationStation

ToTsing Yi Estate

Cheung Sha Wan PathStation

ToLai Yiu

Cheung Sha Wan PathStation

ToKowloon City Ferry

Kwong Cheung Street Cheung Sha WanStation

ToLai Yiu

Cheung Sha Wan PathStation

ToJordan (To Wah Road)

Lai Chi Kok Railway StationStation

52X

ToMong Kok (Park Avenue)

Lai Chi Kok Railway StationStation

52X

ToMONG KOK (PARK AVENUE)

Lai Chi Kok StationStation

52X

ToTuen Mun Central

Cheung Lai Street Cheung Sha WanStation

58X

ToMong Kok East Station

Lai Chi Kok Railway StationStation

58X

ToLeung King Estate

Lai Chi Kok Railway StationStation

59X

ToMong Kok East Station

Lai Chi Kok Railway StationStation

59X

ToTuen Mun Pier Head

Lai Chi Kok Railway StationStation

60X

ToJordan (To Wah Road)

Tai Nan West StreetStation

60X

ToTuen Mun Central

Cheung Lai Street Cheung Sha WanStation

66X

ToOlympic Station

Lai Chi Kok Railway StationStation

66X

ToTai Hing

Lai Chi Kok Railway StationStation

67X

ToMong Kok East Station

Lai Chi Kok Railway StationStation

67X

ToSiu Hong Court

Lai Chi Kok Railway StationStation

68X

ToMONG KOK (PARK AVENUE)

Lai Chi Kok Railway StationStation

68X

ToMONG KOK (PARK AVENUE)

Lai Chi Kok Railway StationStation

68X

ToHUNG SHUI KIU (HUNG FUK ESTATE)

Cheung Lai Street Cheung Sha WanStation

69X

ToJordan (To Wah Road)

Tai Nan West StreetStation

69X

ToTin Shui Estate

Cheung Lai Street Cheung Sha WanStation

ToCheung Sha Wan

Un Chau Shopping CentreStation

ToTai Wo

Wing Lung StreetStation

ToJordan (To Wah Road)

Villa CarltonStation

ToWo Che

Villa CarltonStation

ToMei Foo

Fat Tseung StreetStation

ToWong Nai Tau

Wing Lung StreetStation

86A

ToCheung Sha Wan (Kom Tsun Street)

Un Chau Shopping CentreStation

86A

ToSha Tin Wai

Wing Lung StreetStation

86C

ToLee On

Wing Lung StreetStation

98C

ToMei Foo

Cheung Sha Wan PathStation

98C

ToHang Hau (North)

Lai Chi Kok Railway StationStation

98S

ToMei Foo

Cheung Sha Wan PathStation

98S

ToLOHAS Park

Lai Chi Kok Railway StationStation

214

ToCheung Sha Wan(Kom Tsun Street)

Cheung Lai Street Cheung Sha WanStation

214

ToCheung Sha Wan (Kom Tsun Street)

Cheung Lai Street Cheung Sha WanStation

214

ToYau Tong Public Transport Interchange

Lai Chi Kok Railway StationStation

234X

ToBayview Garden

Lai Chi Kok Railway StationStation

234X

ToTsim Sha Tsui East (Mody Road)

Kwong Cheung Street Cheung Sha WanStation

238X

ToChina Ferry Terminal

Kwong Cheung Street Cheung Sha WanStation

238X

ToRiviera Gardens

Lai Chi Kok Railway StationStation

240X

ToKWAI HING STATION

AquamarineStation

240X

ToWONG NAI TAU

Cheung Lai Street Cheung Sha WanStation

265B

ToMong Kok (Park Avenue)

Lai Chi Kok Railway StationStation

265B

ToTin Heng Estate

Cheung Lai Street Cheung Sha WanStation

270B

ToSHAM SHUI PO

AquamarineStation

270B

ToSheung Shui

Cheung Lai Street Cheung Sha WanStation

270D

ToSHAM SHUI PO

AquamarineStation

272E

ToShum Shui Po(Yen Chow Street)

AquamarineStation

272E

ToTai Wo

Cheung Lai Street Cheung Sha WanStation

272P

ToKWAI HING RAILWAY STATION

AquamarineStation

286C

ToSHAM SHUI PO

AquamarineStation

286C

ToLEE ON

Cheung Sha Wan PathStation

286X

ToSham Shui Po (Circular)

Lai Chi Kok Railway StationStation

286X

ToSham Shui Po (Circular)

Lai Chi Kok Railway StationStation

296C

ToSheung Tak

Cheung Sha WanStation

936

ToCAUSEWAY BAY (COTTON PATH)(via Shek Yim and On Yim )

AquamarineStation

936

ToLEI MUK SHUE ESTATE PUBLIC TRANSPORT INTERCHANGE

AquamarineStation

KOWLOON MOTOR BUS/CITYBUS

N118

ToSiu Sai Wan (Island Rosort)

Cheung Sha Wan Railway StationStation

N118

ToCHEUNG SHA WAN (SHAM MONG ROAD)

Fu Cheong EstateStation

N171

ToAp Lei Chau Estate

Lai Chi Kok Railway StationStation

N171

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

102

ToMei Foo

Cheung Lai Street Cheung Sha WanStation

102

ToShau Kei Wan

Lai Chi Kok Railway StationStation

102P

ToMei Foo

Cheung Lai Street Cheung Sha WanStation

102P

ToShau Kei Wan

Lai Chi Kok Railway StationStation

117

ToSham Shui Po (Yen Chow Street)

Nam Cheong Estate Sham Shui PoStation

118

ToCHEUNG SHA WAN (SHAM MONG ROAD)

Fu Cheong EstateStation

118

ToSiu Sai Wan (Island Resort)

Cheung Sha Wan Railway StationStation

118

ToCHEUNG SHA WAN (SHAM MONG ROAD)

Fu Cheong EstateStation

118P

ToCHEUNG SHA WAN (SHAM MONG ROAD)

Fu Cheong EstateStation

118P

ToSiu Sai Wan (Island Resort)

Cheung Sha Wan Railway StationStation

171

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

171

ToSouth Horizons

Lai Chi Kok Railway StationStation

171

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

171

ToSouth Horizons (omit South Horizon Drive)

Lai Chi Kok Railway StationStation

171

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

171

ToSouth Horizons (via Ocean Park)

Lai Chi Kok Railway StationStation

171A

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

171P

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

KOWLOON MOTOR BUS/NEW WORLD FIRST BUS

N122

ToShau Kei Wan

Fuk Wa StreetStation

N122

ToMei Foo

Azalea HouseStation

112

ToSo Uk

Cheung Sha Wan Railway StationStation

112

ToNorth Point

Tonkin StreetStation

904

ToKennedy Town

Cheung Wah StreetStation

904

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

905

ToWan Chai North

Lai Chi Kok Railway StationStation

905

ToLai Chi Kok

Cheung Lai Street Cheung Sha WanStation

905P

ToWAN CHAI (HARBOUR ROAD)

Aquamarine, Sham Mong RoadStation

914

ToTin Hau Station

Hoi Lai Estate Bus TerminusStation

914P

ToTin Hau Station

Hoi Lai Estate Bus TerminusStation

914X

ToTin Hau Station

Hoi Lai Estate Bus TerminusStation

NEW WORLD FIRST BUS

701

ToMong Kok (Circular)

Aquamarine, Sham Mong RoadStation

701S

ToMong Kok (Circular)

Hoi Lai EstateStation

702

ToYau Yat Tsuen

Cheung Sha Wan Station, Tonkin StreetStation

702

ToYau Yat Tsuen (Circular)

Cheung Sha Wan Station, Tonkin StreetStation

702

ToYau Yat Tsuen(Man Lok House)

Banyan Garden, Sham Shing RoadStation

702A

ToPak Tin

Aquamarine, Sham Mong RoadStation

702S

ToCheung Sha Wan (Sham Shing Road)/Fu Cheong Estate(Circular)

Cheung Fat Street, Po On RoadStation

702S

ToSo Uk

Cheung Sha Wan Station, Tonkin StreetStation

796C

ToSo Uk Estate

Cheung Sha Wan Station, Tonkin StreetStation

796C

ToOscar By The Sea

Cheung Fat Street, Po On RoadStation

796E

ToSO UK

Cheung Sha Wan Station, Tonkin StreetStation

970

ToSo Uk

Cheung Sha Wan Station, Tonkin StreetStation

970

ToCyberport

Shun Ning Road, Tonkin StreetStation

970X

ToSo Uk

Cheung Sha Wan Station, Tonkin StreetStation

970X

ToSo Uk

Cheung Sha Wan Station, Tonkin StreetStation

970X

ToAberdeen

Shun Ning Road, Tonkin StreetStation

971

ToShek Pai Wan Estate Public Transport Interchange

Hoi Lai EstateStation

GREEN MINIBUS

ToChak On Estate

Yu Chau West Street, Outside Hang Fat Industrial BuildingStation

44A

ToHoi Lai Estate (Circular)

Cheung Sha Wan Bus TerminusStation

44S

ToCastle Peak Road(Circular)

Hoi Lai EstateStation

45M

ToSham Shui Po (Yu Chau Street)

Caritas Medical Centre, Outside Wai Tak BlockStation

ToCheung Sha Wan (Castle Peak Road) (Circular)

Sai Chuen Road, Outside Fu Wong House, Fu Cheong EstateStation

75A

ToKweilin Street (Circular)

Fu Cheong EstateStation

75B

ToSham Shui Po (Kweilin Street)

Cheung Sha WanStation

81K

ToMei Foo Station (Circular)

Hoi Lai EstateStation

97A

ToWonderland Villas

Cheung Fat Street, Outside Hang Seng Castle Peak Road BuildingStation