The local plan has a list of development sites and is an interesting read.  It says there will be a hotel on Bunns Lane near the railway station, and parking.

Here is what it has to say about Edgware Community Hospital (which has recently been surrounded by a big blue fence.)

No. 5 Edgware Hospital (Major Thoroughfare)

Site Address: Edgware Rd, Burnt Oak, HA8 0AD

Map and Image retained as submitted Ward: Burnt Oak Image retained as submitted PTAL 2019: 3 PTAL 2031: 3 Site Size: 2.87 ha 6.4 ha (5.2 ha currently outside of Flood Zone 3b) Ownership: Public (NHS) Site source: Call for sites Context type: Urban Existing or most recent site use/s: Hospital Development timeframe: 6-10 years Planning designations: Site of Borough Importance for Nature Conservation

Relevant planning applications: None (21/0274/OUT).

Site description: An NHS hospital on a relatively low-density site, with buildings of 1-25 storeys. To the north and south are 3-6 storey residential blocks, while a railway line is located to the rear. A There are large areas of surface car parking. Much of the site is in Flood Zone 2 and a significant portion within Zone 3a; while land surrounding the Silk Stream is Zone 3b (functional floodplain). A Site of Borough Importance for Nature Conservation lies along the Silk Stream. The site is on the A5 Edgware Road which is in this section is predominantly low-rise in character, with retail and office uses. To the north and south are 3-4 storey residential blocks, while a railway line is to the rear. Burnet Oak Station is within approximately ½ km. Applicable Draft Local Plan policies: GSS01, GSS11, HOU01, HOU02, CDH01, CDH02, CDH03, CDH04, CDH07, CHW01, CHW02, ECC02, ECC02A, ECC06, TRC01, TRC03 Proposed uses/ allocation (as a proportion of floorspace): 75% of the site by floorspace to continue in use as a hospital , with associated car parking; with 25% of site by floorspace to be residential. Residential development with retention of healthcare provision and access. Indicative residential capacity: 366 units 129 dwellings based on the extant planning permission (21/0274/OUT).

Justification: There is potential to make more efficient use of this relatively low-density location for housing while maintaining the hospital uses on site. The Level 2 SFRA and supporting Technical Note conclude that the site passes the Exceptions Test as there are no reasonable alternatives to this site with similar capacity within flood zones with a lower risk of flooding, and that the site can be developed safely with regards to flood risk. It recommends avoiding development within Zone 3b which is largely concentrated closer to the Silk Stream but suggests that flood resilience measures and compensatory flood storage equal to or exceeding flood depths will be required to offset development. Without prejudice, any forthcoming scheme must be accompanied by a detailed site-specific Flood Risk Assessment that assesses flood risk from all sources and provides detailed mitigation and safe access and egress. Given the findings and recommendations of the Level 2 SFRA and Technical Note. although the 6.4ha site size and proposal boundary as shown on the Policies Map remains unchanged, it is notable that currently 19% of the site is within Flood Zone 3b.

Site requirements and development guidelines: The hospital will continue in operational use and full unrestricted access must be maintained. Any subsequent application proposal seeking additional residential development within the allocation would require demonstration of acceptability through a site-specific flood risk assessment and design-led approach, including application of the exception test to any parts of the site within Flood Zone 3a. Development should avoid those parts of the site in Flood Zone 3b (functional flood plain). Proposals should refer to the SFRA Level 2 for flood risk avoidance and mitigation measures. The opportunity to remove obsolete weirs at the confluence of the Silk Stream and Deans Brook in northern part of site should be considered. The designated SINC must be protected. Opportunities should be sought to improve biodiversity along the Silk Stream, with a 10 meter buffer reserved along the waterway corridor. Better public access along the Silk Stream should be provided, linking together with the north-south pathway which runs between Deansbrook Road and Watling Avenue along the eastern edge of the site. Connectivity for the Barnet Loop should be explored, with reference to Barnet’s Long Term Transport Strategy (LTTS). The scale of development is likely to require upgrades to the wastewater network. The developer and the Council should liaise with Thames Water at the earliest opportunity to agree a housing and infrastructure phasing plan to ensure development does not outpace delivery of essential network upgrades. Opportunities should be sought to improve biodiversity along the Silk Stream, with a 10-meter buffer reserved along the waterway corridor. Any development of the land must seek to retain important wildlife habitats and trees that are present to protect existing site ecology. Proposals must make the fullest contributions to enhancing and/or creating biodiversity in accordance with Policies CDH07 and ECC06 of the Local Plan. This site lies on the Strategic Walking Network and a footpath runs along the back of the hospital grounds alongside the railway line. There is a need for development proposals to ensure effective connectivity to this network and improve the environment of this footpath and open up its access to the Silk Stream. Connectivity for the Barnet Loop should be explored, with reference to Barnet’s Long Term Transport Strategy (LTTS). The site should be subject to an archaeological assessment. This location may be suitable for a tall building; further guidance will be provided by the Building Heights SPD. Any tall building should be located away from Silk Stream main river.