Largest housing developments in Hertfordshire

Up to 5,000 homes

Land Off Coursers Road Colney Heath Hertfordshire

Outline planning application with all matters reserved except for details of access from the B556 ('St Albans Road / Blackhorse Lane'): for residential-led mixed use development comprising residential accommodation and residential institution (Use Classes C3 and C2); commercial, business and service uses (Use Classes E); local community and learning uses (Use Class F1 and F2); sui generis uses; pu

Up to 1,500 homes

Outline application for residential-led mixed use development comprising up to 1,500 new dwellings (including residential accommodation and specialist accommodation for older people) (Use Class C3), a care home (Use Class C2), a 3FE primary school (including early years provision) (Use Class F1), a local centre, mobility hub, open space, amenity space, allotments, green infrastructure, sustainable

Up to 1,100 homes

LA3, Land At West Hemel Hempstead

Hybrid planning application for mixed use proposed development at west hemel hempstead, pursuant to policy la3 of the adopted site allocations development plan document (2017) to provide for up to 1100 dwellings (with up to 40% affordable housing), comprising Full planning proposals for 350 dwellings and outline

Up to 1,000 homes

Hybrid planning application comprising: (1) Full planning application for the relocation and replacement of existing playing fields and erection of pavilion annex; and (2) Outline planning application (access sought) for the construction of up to 1000 new homes (Use Class C3) to include a mix of market housing, affordable housing, age restricted specialist accommodation for the elderly, adult disa

Up to 700 homes

Land North Of Farm Way Bushey Hertfordshire

Hybrid planning application for a phased, residential-led, mixed use development. The detailed element comprises the phased construction of residential dwellings (open market and affordable) (Class C3); flexible non-residential uses (Class E and Class F2); community infrastructure including a community park; means of vehicular, cycle and pedestrian access from Little Bushey Lane; alongside associa

Up to 650 homes

Home Farm Common Lane Radlett Hertfordshire WD7 8PL

Outline planning application (with all matters reserved except access) comprising a residential development of up to 650 dwellings (Use Class C3); a one-form entry primary school and nursery; supporting mixed uses (Use Classes E and F) with associated landscaping; amenity space; drainage infrastructure and all other associated works. The application is accompanied by an Environmental Statement (EI

Up to 640 homes

GA2, Land North-East Of Great Ashby Stevenage Hertfordshire

Hybrid application for a residential-led development comprising residential (Use Class C3), educational use (Use Class F1), a community hub (Use Class F2) with associated new internal roads, access, parking, cycling infrastructure, landscaping and other associated infrastructure. Full application comprises the construction of vehicle access and an active travel link via Mendip Way, with associated

Up to 600 homes

Land To North Of Little Green Lane Croxley Green WD3 3SP

Outline Application: Development of up to 600 residential dwellings (Use Class C3(a)), construction of a 5-bedroom property for childrens social care and supported living (Use Class C3(b)). Two vehicular access points from Little Green Lane and further pedestrian / cycleway accesses. A one form entry primary school (Use Class F1(a)) (plus expansion land for a two form entry primary school). A mixe

Up to 552 homes

Former Potters Bar Golf Club Darkes Lane Potters Bar Hertfordshire EN6 1DE

Outline planning application (with all matters reserved except access) for the phased erection of up to 550 residential dwellings including affordable housing and plots of self-build/custom build homes (Class C3); a community hub building and other community facilities (Class E); green and blue infrastructure; a primary vehicular access from Darkes Lane; a pedestrian and cycle access (and also ser

Up to 423 homes

Goods Yard Station Road Bishops Stortford Hertfordshire CM23 3BL

Full application for residential dwellings (Use class C3), together with associated car parking, plant, sub-station, landscaping, public realm and infrastructure works, Outline application (with all matters reserved) for residential dwellings (Use class C2 / C3), commercial floorspace (Use class E) and car parking facility, together with associated car parking, plant, landscaping, new public realm

341 homes

The Oval Stevenage Herts SG1 5LW

Hybrid application for the comprehensive redevelopment of land at The Oval comprising: an Outline Application for a mixed use development on parcels A,B and D to include 250 dwellings, 1200sqm of mixed commercial (Class E), Parking and public realm improvements including a New Market Square, up to 2650sqm of retail (Class E) and 220sqm mixed use (Class E and Sui Generis) and parking on Parcel C, a

Up to 333 homes

Catlips Farm Berry Lane Chorleywood Rickmansworth Hertfordshire WD3 5EU

Outline Application: Demolition of existing development and redevelopment of the Site, including the construction of up to 333 dwellings (Use Class C3) of which 50% affordable housing, 66 bed Care Home (Use Class C2), Medical Centre (Use Class E (e)), Local Centre [containing Retail (Use Class E (a-c)), Community Facilities (use Class F2) and Cafe (Use Class E(a))] and associated play space, parki

Up to 325 homes

Land Surrounding Burloes Cottages Newmarket Road Royston Hertfordshire

Hybrid application for residential development of up to 325 dwellings comprising (a) full planning application for Phase 1 comprising 106 dwellings and associated infrastructure including access from Newmarket Road, emergency and pedestrian/cycle access from Burloes Hall Drive, internal highways, public open space, landscaping and drainage and b) outline application for up to 219 dwellings and ass

322 homes

7 The Forum Town Centre Stevenage Herts SG1 1ES

Demolition and redevelopment of existing former BHS building to create 21 storey building comprising of ground floor commercial space and 322 residential dwellings with associated infrastructure including amenity space, car parking, bicycle storage, refuse storage and plant rooms.

Up to 320 homes

Marsworth Airfield Lukes Lane Gubblecote Tring Hertfordshire HP23 4QH

Outline Planning permission for demolition of existing buildings, structures and hardstanding, construction of up to 320 residential units, a primary school, a local centre and a rural enterprise hub together with a transport mobility hub, public open space, drainage, landscaping and ancillary infrastructure. New vehicular and pedestrian access off Long Marston Road with all other matters (includi

Up to 300 homes

Land South Of Stevenage Road Little Wymondley Hertfordshire

Outline planning application for the development of up to 300 dwellings (all matters reserved except for access)

Up to 292 homes

Land To The West Of Green Street And North West Of Stapleton Road Borehamwood Hertfordshire

Erection of up to 292 new homes (including affordable homes) together with associated open space and areas of play, landscaping and new access. (Outline application with all matters reserved except for means of access.)

Up to 280 homes

Land East Of Little Bushey Lane And North Of The Squirrels Little Bushey Lane Bushey Hertfordshire

Application for residential development (up to 280 dwellings) with access from Little Bushey Lane, a mobility / community hub (Class E), along with car parking, drainage and earthworks, open space and all ancillary and enabling works (Outline Application with Appearance, Internal Access, Landscaping, Layout and Scale Reserved for subsequent approval).

Up to 256 homes

Land East Of Oxhey Lane Oxhey Lane Carpenders Park Hertfordshire

Outline planning application for up to 256 homes (C3 use class) (including affordable and self/custom build housing), housing with care (C2 use class), a children's home (for looked after children) (C2 use class) together with associated access (including off-site highway works), parking, open space and landscaping (appearance, layout, landscaping and scale as reserved matters).

Up to 230 homes

Outline planning application (all matters reserved except access) for the construction of up to 230 dwellings to include affordable housing (Use Class C3), creation of suitable alternative natural greenspace (SANG), landscaping, public open space, drainage and demolition of 49 and 51 Tassell Hall and associated infrastructure (Cross boundary application falling within St Albans City and District C

Up to 230 homes

Land At Pound Farm Bedford Road Ickleford Hertfordshire SG5 3RS

Hybrid application for a mixed-use development to provide a total of up to 230 dwellings, a residential care home (Use Class C2), an Independent Special School (ISS) and new sports pitch, with access from Bedford Road, landscaping, parking and SuDS comprising: Phase 1 Application for full planning permission for the erection of 100 dwellings, an ISS, new sports pitch and associated parking, landsc

228 homes

225 Shenley Road Borehamwood Hertfordshire

Change of use and extension of the existing building comprising a part 2, part 3, part 8 storey extension providing 228 co-living units (sui generis) with communal facilities, co-working floorspace (Class E); car and cycle parking; refuse storage; hard and soft landscaping and other associated works.

Up to 225 homes

Land At Jones Road Goffs Oak Hertfordshire EN7 5LD

Outline planning permission with all matters reserved (except for access and Phase 1 landscaping for which detailed approvals are sought) for the residential development of up to 225 private and affordable dwellings; together with open spaces including natural green space; a minimum of 10% biodiversity net gain; a new vehicular and pedestrian access off Jones Road; and other associated ancillary w

Up to 200 homes

Land South Of Wychford Drive Sawbridgeworth Hertfordshire

Outline planning application (including details of access) for erection of up to 200 dwellings with public open space, landscaping, sustainable urban drainage system (SuDs) and the principal means of vehicular access from Wychford Drive (with all other matters reserved)

Up to 200 homes

Land South of King George V Playing Fields Northaw Road East Cuffley EN6 4RD

Outline planning application (with all matters other than primary access reserved) for up to 200 dwellings, including public open space, landscaping, surface water drainage, and associated infrastructure, with means of primary vehicular access from Northaw Road East

Up to 200 homes

Land North Of Station Road Stanstead Abbotts Hertfordshire

Outline planning application (including details of access) for up to 200 dwellings to include affordable housing (Use Class C3), public open space and associated infrastructure (with matters relating to appearance, landscaping, layout and scale reserved)

Up to 200 homes

Land South Of Shootersway Berkhamsted HP4 3FB Hertfordshire

Construction of up to 200 residential dwellings (Use Class C3) with a new access from Shootersway, public open space, biodiversity enhancements, landscaping, surface water drainage and other associated infrastructure.

Up to 200 homes

Land East Of Kingsley Green Harper Lane Shenley Radlett Hertfordshire

Hybrid planning application comprising: (1) Outline planning application for a residential development (up to 200 dwellings), community building, associated works including infrastructure, blue and green infrastructure and landscaping/drainage attenuation. All matters reserved except for access; and (2) Full application for the demolition of and relocation of the existing Bowls Club and demolition

Up to 200 homes

Land South Of Harper Lane Radlett

Hybrid planning application comprising: (1) Outline planning application for a residential development (up to 200 dwellings), community building, associated works including infrastructure, blue and green infrastructure and landscaping/drainage attenuation. All matters reserved except for access; and (2) Full application for the demolition of and relocation of the existing Bowls Club and demolition

Up to 190 homes

Land Between The Alban Way And Colney Heath Lane St Albans Hertfordshire

Outline application (access sought) - Construction of up to 190 dwellings to include 50% affordable housing and 10% self-build and custom housing, a minimum of 6ha of public open space, landscaping, biodiversity habitat, formation of new access and all an

186 homes

Lyndhurst Farm Green Street Borehamwood Hertfordshire WD6 5NF

Full planning application for 186 dwellings, community building, associated parking, landscaping and open space, with vehicle and pedestrian access from Green Street and a separate pedestrian access from Stapleton Road. (Amended Description 21/06/2024 to remove 3 dwellings and amendment to layout)

Up to 185 homes

W Block Clare Hall Laboratories Blanche Lane South Mimms Hertfordshire

Outline application (with all matters reserved except for means of access) for the demolition of buildings on site and erection of up to 185 homes (including 50% affordable housing) alongside access, landscaping, car parking and associated works.

Up to 171 homes

Land At Old River Lane The Causeway East Hertfordshire CM23 2EN

Full planning application for mixed-use development comprising up to 171 no. residential units (including 48 no. affordable units) (use class C3), community use (use class E / F2), retail and commercial (use class E) and Public Square (sui generis), the creation of new and improvements to existing streets, footpaths and cycle lanes, and associated works (including car and cycle parking, landscapin

167 homes

Hybrid planning application comprising: (1) Full detailed planning application for the construction of 167 new homes (use class C3); new local centre and community facility (use classes E(a to f) and F); a children's home (use class C2); demolition and renovation of existing college buildings; construction of new college buildings (use class F1.); the creation of Active Travel Routes including foo

157 homes

Land On Campfield Way Letchworth Garden City Hertfordshire

Redevelopment of site comprising demolition of existing buildings and provision of 157 dwellings; associated roads, landscaping, open space, car and cycle parking provision, drainage and infrastructure works and all associated ancillary works (as amended)

Up to 155 homes

Outline application (access sought) - Erection of up to 155 residential dwellings together with ancillary works at Land At Round House Farm Roestock Lane Colney Heath Hertfordshire St Albans

154 homes

Land North Of Potters Lane Borehamwood Hertfordshire

Hybrid application consisting of (i) A full planning application for 154 dwellings (Use Class C3), and the construction of a new synagogue (Use Class F1) landscaping and associated works with access from Potters Lane; (ii) An outline application with all matters reserved for the construction of a new care home (Use Class C2).

Up to 150 homes

Land North Of Chipperfield Road Kings Langley Herts

Outline planning application for the demolition of 36 Chipperfield Road, and the construction of up to 150 residential dwellings including affordable housing (Use Class C3), new vehicular access off Chipperfield Road, new pedestrian and cycle access at Love Lane, new education facility and community building (F1(a)/sui generis use), landscaping, public open space and play space, cycle and car park

Up to 150 homes

Land off London Road Woolmer Green SG3 6JZ

Outline planning application for the erection of up to 150 residential dwellings with the provision of affordable housing, public open space, landscaping, sustainable drainage system (SuDS) and vehicular access point. All matters reserved except for means of access

Up to 145 homes

Land Off Hempstead Road Newhouse Road Bovingdon Hemel Hempstead Hertfordshire

Hybrid Planning Application for a Residential development comprising Outline Planning Application for up to 145 dwellings (Use Class C3) including public open space, a community orchard, landscaping, play areas, drainage features and associated infrastructure. All matters reserved except for access from Hempstead Road and Full Planning Application for the change of use from agricultural land to 12

Up to 136 homes

Land North Of Allum Lane Elstree Hertfordshire

Outline planning application (with all matters reserved except access) for residential development of upto 136 dwellings, including affordable housing (Class C3), associated parking, infrastructure, landscaping and open space including allotments, and creation of new vehicular access from Allum Lane.

130 homes

Haresfoot Farm Chesham Road Berkhamsted Hertfordshire HP4 2SU

Demolition of existing buildings and redevelopment of the site to provide 130 residential units (market and affordable), construction of a community hub building, sustainability measures together with associated landscaping, open space, parking, and highway improvement

Up to 130 homes

Land South East Of Holwell Road And North Of Hambridge Way, Pirton Herts

Outline application for the erection of up to 130 dwellings with public open space, landscaping, sustainable drainage system (SuDS), and associated works with all matters reserved save for access (additional supporting information received 17th September and 2nd December 2025)

120 homes

Land at South Way Hatfield

Outline planning application with all matters reserved except access, for the erection of 120 homes and a two form entry primary school with associated access, open space, landscaping and other infrastructure

118 homes

Land West Of Wadesmill Road (HERT4) Hertford Hertfordshire

Erection of 118 dwellings, including access roads, cycle and pedestrian routes, cycle and car parking, public open space, landscaping, tree protection measures, sustainable urban drainage system (SuDS) and associated ancillary structures

112 homes

Land Between Hill Crest And Dove Lane Potters Bar Hertfordshire

Redevelopment of the site for the erection of 112 dwellings, site access, roads, parking, open space, SuDs and associated infrastructure.

109 homes

Former Big Cat Sanctuary Codicote Road Welwyn Hertfordshire AL6 9TU

Erection of 109 residential dwellings with access, parking, hard and soft landscaping and public open space following demolition of all existing buildings and structures

Up to 103 homes

49, Longview, And Land To The Rear London Road Shenley Hertfordshire

Demolition of Longview and associated outbuildings, alterations to no.49 London Road along with the erection of replacement garage following demolition of the existing garage to allow for the construction of up to 103 no. retirement homes (Use Class C3), an integrated community facility, vehicular and pedestrian access, internal roads, landscaping, drainage, and other associated works and infrastr

100 homes

Land West of Burton Lane Goffs Oak EN7 6SA

Erection of 100 new residential dwellings, and a provision of associated infrastructure including access roads, car parking, public open space and landscaping

Up to 100 homes

Land to the north of New Road Stanborough Welwyn Garden City AL8 7TX

Outline Planning Application for up to 100 dwellings (including affordable housing), open space, sustainable drainage systems (SuDS), vehicular access point and associated infrastructure, with all matters reserved except for access

Up to 100 homes

Land South Of Turnpike Lane Ickleford Hertfordshire

Erection of up to 100 dwellings with means of access from Turnpike Lane including associated landscaping, drainage, car parking; infrastructure and all ancillary and enabling works following demolition of all existing structures (all matters reserved except means of access)

Up to 225 homes

Land at West of Jones Road Goffs Oak Hertfordshire

Request for EIA Screening Opinion for a proposed redevelopment of up to 225 dwellings, open space, access and associated works'

408 homes

Cheshunt Lakeside Delamare Road Cheshunt Hertfordshire

Request for EIA Screening Opinion for 408 dwellings (125 houses and 283 apartments

Up to 125 homes

Land West Of High Street Walkern Hertfordshire

Request for screening opinion for residential development of up to 125 homes at Land West of High Street, Walkern

Up to 650 homes

Land Off Long Lane Heronsgate Hertfordshire

Environmental Impact Assessment Scoping Opinion Request - Development of up to 650 residential dwellings, primary school, local centre uses, community uses, public open space, drainage and infrastructure and, associated vehicular access.

Up to 100 homes

Land At Hill Farm Stag Lane Chorleywood Rickmansworth Hertfordshire WD3 5HD

EIA Screening Request: Residential development of up to 100 dwellings

Up to 400 homes

Land At Bulbourne Road Grove Road Tring Hertfordshire

Outline planning application for up to 400 dwellings with access from Grove Road and Bulbourne Road, internal routes, public open space, SuDS, walking/cycling infrastructure, and associated landscaping/enabling works

Up to 265 homes

Land West Of Tassell Hall Redbourn Hertfordshire

Screening Opinion - Outline planning application (all matters reserved except access) for the construction of up to 265 new homes, including 50% affordable, creation of suitable alternative natural greenspace (SANG), landscaping, public open space, drainage, demolition of 49 and 51 Tassell Hall and associated infrastructure works at Land West of Tassell Hall Redbourn Hertfordshire

1,000 homes

Land Between Redbourn Bypass Dunstable Road And Harpenden Lane Redbourn Hertfordshire

Scoping Opinion - Mixed use development comprising approximately 1,000 new homes, a primary school, care home facility, community buildings, employment space and green infrastructure including SANG provision. at Land Between Redbourn Bypass Dunstable Road And Harpenden Lane Redbourn Hertfordshire

Up to 100 homes

Land To The Southwest Of Vale Avenue Borehamwood Hertfordshire

Request for screening opinion (Environmental Assessment - Screening) - up to 100 residential units.

300 homes

Canada Life House 2 - 6 High Street Potters Bar Hertfordshire EN6 5BA

Redevelopment of site to mixed use residential and Class E, approx. 300 homes - PPA agreement

Up to 4,000 homes

Land To East Of Hemel Hempstead Hemel Hempstead Road Redbourn Hertfordshire

Scoping Opinion - Construction of up to 4,000 new dwellings (to include 40% affordable housing, 5 extra-care facilities each comprising 70-80 self- contained units, 3 nursing homes (each of 70-80 beds) and 16 supporting living units); up to 53ha of employment and ancillary facilities (to include 17ha of Business (Ei), Research and Development (Eii) and 36ha of Logistics (B8) and mixed industrial u

Up to 600 homes

Land North Of Little Green Lane And West Of Rousebarn Lane Croxley Green Hertfordshire

EIA Screening Request: Up to 600 new residential dwellings (Use Class C3), 1FE Primary School plus expansion land, mixed use local centre including Doctor's surgery, open and green space and associated infrastructure